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2.0L - Dtcs B104D to P0461: Diagnosis Dodge Dart PF

Testing & Diagnostics ~31639 words

DIAGNOSTIC TEST

  1. CHECK FOR HVAC MODULE DTCS With the scan tool, View HVAC Module DTCs. Are there any HVAC Module DTCs present? Yes Perform the appropriate HVAC Module DTC diagnostic procedure. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 2
  2. CHECK THE HVAC MODULE POWER AND GROUND CIRCUITS NOTE: If the HVAC Module loses and regains it's power or ground supply it will run a re-calibration procedure. During this procedure the blend door feedback voltage will be at zero volts for a few seconds. The Powertrain Control Module may erroneously set this DTC during this time. Perform the NO RESPONSE FROM HVAC (A/C HEATER CONTROL MODULE) test procedure to check the Battery, Fused Ignition, and Ground supply circuits. Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) . Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  3. CHECK FOR HVAC MODULE DTCS With the scan tool, View HVAC Module DTCs. Are there any HVAC Module DTCs present? Yes Perform the appropriate HVAC Module DTC diagnostic procedure. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. POWERTRAIN CONTROL MODULE (PCM) Perform any Technical Service Bulletins (TSBs) or Star Online cases that may apply. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/1 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 3 No Go To 2
  2. CHECK BLOWER OPERATION Turn on the HVAC system and operate the blower throughout it's entire operating range. With the scan tool, select View DTCs. Did this DTC change from Stored to Active while running the blower motor? Yes Go To 3 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  3. CHECK FOR HVAC MODULE DTCS With the scan tool, View HVAC Module DTCs. Are there any HVAC Module DTCs present? Yes Perform the appropriate HVAC Module DTC diagnostic procedure. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. POWERTRAIN CONTROL MODULE (PCM) Perform any Technical Service Bulletins (TSBs) or Star Online cases that may apply. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/1 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 3 No Go To 2
  2. CHECK BLOWER OPERATION Turn on the HVAC system and operate the blower throughout it's entire operating range. With the scan tool, select View DTCs. Did this DTC change from Stored to Active while running the blower motor? Yes Go To 3 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  3. CHECK FOR HVAC MODULE DTCS With the scan tool, View HVAC Module DTCs. Are there any HVAC Module DTCs present? Yes Perform the appropriate HVAC Module DTC diagnostic procedure. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. POWERTRAIN CONTROL MODULE (PCM) Perform any Technical Service Bulletins (TSBs) or Star Online cases that may apply. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/1 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (K76) CMP 1/1 CONTROL CIRCUIT SHORTED TO ANOTHER 12 VOLT SUPPLY Turn the ignition off. Disconnect the CMP 1//1 Position Solenoid harness connector. Turn the ignition on. With the scan tool, actuate the CMP 1//1 Position Solenoid to off (0%). Measure the voltage of the (K76) CMP 1/1 Control circuit at the CMP 1//1 Position Solenoid harness connector. Is the voltage reading near battery voltage? Yes Repair the (K76) CMP 1/1 Control circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. (K76) CMP 1/1 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the between ground and the (K76) CMP 1/1 Control circuit at the Camshaft 1/1 Position Solenoid harness connector. Is the resistance above 1000 Ohms? Yes Go To 4 No Repair the (K76) CMP 1/1 Control circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. (K76) CMP 1/1 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE NOTE: When checking circuits at the Powertrain Control Module (PCM), be careful not to damage or distort the connector terminals. Improper measurement technique could result in poor pin to terminal contact. Measure the resistance of the (K76) CMP 1/1 Control circuit between the Camshaft 1/1 Position Solenoid harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K76) CMP 1/1 Control circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. (Z904) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Using a 12-volt test light connected to B (+), probe the (Z904) Ground circuit in the Camshaft 1/1 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go To 6 No Repair the (Z904) Ground circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CAMSHAFT 1/1 POSITION SOLENOID ACTUATION Reconnect the PCM C2 harness connector. Turn the ignition on. With the scan tool, actuate the Camshaft 1/1 Position Solenoid to the ON (maximum percentage) position. Using a 12-volt test light connected to ground, probe the (K76) CMP 1/1 Control circuit in the Camshaft 1/1 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go To 7 No Go To 8
  7. CAMSHAFT 1/1 POSITION SOLENOID Turn the ignition off. Inspect the wiring and connectors between the Camshaft 1/1 Position Solenoid and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related connectors. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Camshaft 1/1 Position Solenoid in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Solenoid and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (K99) O2 SENSOR 1/1 HEATER CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Oxygen Sensor 1/1 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance between ground and the (K99) O2 Sensor 1/1 Heater Control circuit in the Oxygen Sensor 1/1 harness connector. Is the resistance below 100 Ohms? Yes Repair the (K99) O2 Sensor 1/1 Heater Control circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. (K99) O2 SENSOR 1/1 HEATER CONTROL CIRCUIT SHORTED TO THE (Z904) GROUND CIRCUIT Measure the resistance between the (K99) O2 Sensor 1/1 Heater Control circuit and the (Z904) Ground circuit in the Oxygen Sensor 1/1 harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K99) O2 Sensor 1/1 Heater Control circuit and the (Z904) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. OXYGEN SENSOR 1/1 Connect the Powertrain Control Module (PCM) C2 harness connector. Turn the ignition on. With the scan tool, actuate the Oxygen Sensor 1/1 control to the maximum allowable percentage. Using a 12-volt test light connected to ground, check the (K99) O2 Sensor 1/1 Heater Control circuit in the Oxygen Sensor 1/1 harness connector. NOTE: The test light should flash dimly. With the scan tool, actuate the Oxygen Sensor 1/1 control to OFF (0%). Using a 12-volt test light connected to ground, check the (K99) O2 Sensor 1/1 Heater Control circuit in the Oxygen Sensor 1/1 harness connector. NOTE: The test light should not be illuminated with the control actuated OFF (0%). Does the test light flash dimly with the actuator ON (25%) and not illuminated with the actuator OFF (0%)? Yes Replace the Oxygen Sensor 1/1 in accordance with the Service Information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/1 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (K99) O2 SENSOR 1/1 HEATER CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Oxygen Sensor 1/1 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance of the (K99) O2 Sensor 1/1 Heater Control circuit between the Oxygen Sensor 1/1 harness connector and the Powertrain Control Module (PCM) C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 3 No Repair the (K99) O2 Sensor 1/1 Heater Control circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. (Z904) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance between battery (-) and the (Z904) Ground circuit in the O2 Sensor harness connector. NOTE: A good chassis ground can also be used in place of the battery (-). Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the excessive resistance in the (Z904) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. OXYGEN SENSOR 1/1 Connect the Powertrain Control Module (PCM) C2 harness connector. Turn the ignition on. With the scan tool, actuate the Oxygen Sensor 1/1 control to the maximum allowable percentage. Using a 12-volt test light connected to ground, check the (K99) O2 Sensor 1/1 Heater Control circuit in the Oxygen Sensor 1/1 harness connector. NOTE: The test light should flash dimly. With the scan tool, actuate the Oxygen Sensor 1/1 control to the OFF (0%) position. Using a 12-volt test light connected to ground, check the (K99) O2 Sensor 1/1 Heater Control circuit in the Oxygen Sensor 1/1 harness connector. NOTE: The test light should not be illuminated. Does the test light flash dimly with the actuator ON (25%) and not illuminated with the actuator OFF (0%)? Yes Replace the Oxygen Sensor 1/1 in accordance with the Service Information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/1 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (K299) O2 SENSOR 1/2 HEATER CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Oxygen Sensor 1/2 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance between ground and the (K299) O2 Sensor 1/2 Heater Control circuit in the Oxygen Sensor 1/2 harness connector. Is the resistance below 100 Ohms? Yes Repair the (K299) O2 Sensor 1/2 Heater Control circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. (K299) O2 SENSOR 1/2 HEATER CONTROL CIRCUIT SHORTED TO THE (Z904) GROUND CIRCUIT Measure the resistance between the (K299) O2 Sensor 1/2 Heater Control circuit and the (Z904) Ground circuit in the Oxygen Sensor 1/1 harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K299) O2 Sensor 1/2 Heater Control circuit and the (Z904) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. OXYGEN SENSOR 1/2 Connect the Powertrain Control Module (PCM) C2 harness connector. Turn the ignition on. With the scan tool, actuate the Oxygen Sensor 1/2 control to the maximum allowable %. Using a 12-volt test light connected to ground, check the (K299) O2 1/2 Heater Control circuit in the Oxygen Sensor 1/2 harness connector. NOTE: The test light should flash dimly. With the scan tool, actuate the Oxygen Sensor 1/2 control to the OFF (0%) position. Using a 12-volt test light connected to ground, check the (K299) O2 1/2 Heater Control circuit in the Oxygen Sensor 1/2 harness connector. NOTE: The test light should not be illuminated. Does the test light flash dimly with the actuator ON (25%) and not illuminated with the actuator OFF (0%)? Yes Replace the Oxygen Sensor 1/2 in accordance with the Service Information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/2 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (K299) O2 SENSOR 1/2 HEATER CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Oxygen Sensor 1/2 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance of the (K299) O2 Sensor 1/2 Heater Control circuit between the Oxygen Sensor 1/2 harness connector and the Powertrain Control Module (PCM) C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 3 No Repair the (K299) O2 Sensor 1/2 Heater Control circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. (Z904) GROUND CIRCUIT OPEN Measure the resistance between battery (-) and the (Z904) Ground circuit in the O2 Sensor 1/2 harness connector. NOTE: A good chassis ground can also be used in place of the battery (-). Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the excessive resistance in the (Z904) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. OXYGEN SENSOR 1/2 Connect the Powertrain Control Module (PCM) C2 harness connector. Turn the ignition on. With the scan tool, actuate the Oxygen Sensor 1/2 control to the maximum allowable percentage. Using a 12-volt test light connected to ground, check the (K299) O2 Sensor 1/2 Heater Control circuit in the Oxygen Sensor 1/2 harness connector. NOTE: The test light should flash dimly. With the scan tool, actuate the Oxygen Sensor 1/2 control to the OFF (0%) position. Using a 12-volt test light connected to ground, check the (K299) O2 Sensor 1/2 Heater Control circuit in the Oxygen Sensor 1/2 harness connector. NOTE: The test light should not be illuminated. Does the test light flash dimly with the actuator ON (25%) and not illuminated with the actuator OFF (0%)? Yes Replace the Oxygen Sensor 1/2 in accordance with the Service Information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/2 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC NOTE: Diagnose any CAN - C Communication DTCs before continuing. NOTE: Diagnose and repair any system voltage DTCs before continuing with this test. Turn the ignition on. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK THE (G31) AAT SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the Ambient Air Temperature Sensor harness connector. Turn the ignition on. Measure the voltage of the (G31) AAT Sensor Signal circuit at the Ambient Air Temperature Sensor harness connector. Is the voltage above 5.2 volts? Yes Repair the (G31) AAT Sensor Signal circuit for a short voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECK THE (G31) AAT SENSOR SIGNAL FOR AN OPEN/HIGH RESISTANCE Turn the ignition off. Disconnect the Body Control Module (BCM) C6 harness connector. Measure the resistance of the (G31) AAT Sensor Signal circuit between the Ambient Air Temperature Sensor harness connector and the BCM C6 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (G31) AAT Sensor Signal circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK THE (G931) AAT SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (G931) AAT Sensor Ground circuit between the Ambient Air Temperature Sensor harness connector and the BCM C6 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (G931) AAT Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. AMBIENT AIR TEMPERATURE SENSOR Turn the ignition off. Reconnect the BCM C6 harness connector. Connect a jumper between the (G31) AAT Signal circuit and the (G931) AAT Sensor Ground in the Ambient Air Temperature Sensor harness connector. Turn the ignition on. With the scan tool, read the Ambient Air Temperature Sensor signal voltage. Is the voltage below 0.1 volt with the jumper in place? Yes Replace the Ambient Air Temperature Sensor in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. BODY CONTROL MODULE (BCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ambient Air Temperature Sensor and the Body Control Module. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Body Control Module (BCM) in accordance with the service information. Refer to «MODULE, BODY CONTROL, REMOVAL»(ref-646224-S08964387072014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
  1. ACTIVE DTC NOTE: If there are any 5-Volt Reference DTCs present, diagnose and repair those DTCs before proceeding with this test. Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the MAP Sensor harness connector. Turn the ignition on. Measure the voltage of the (F856) 5-Volt Supply circuit in the MAP Sensor harness connector. Is the voltage above 4.8 volts? Yes Go To 3 No Repair the (F856) 5-Volt Supply circuit for and open circuit or short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK THE (K1) MAP SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the PCM C2 harness connector. Measure the resistance between ground and the (K1) MAP Sensor Signal circuit in the MAP Sensor harness connector. Is the resistance above 10k Ohms? Yes Go To 4 No Repair the (K1) MAP Sensor Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK FOR THE (K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K1) MAP Sensor Signal circuit and the (K900) Sensor Ground circuit in the MAP Sensor harness connector. Is the resistance above 10k Ohms? Yes Go To 5 No Repair the (K1) MAP Sensor Signal circuit for a short to the (K900) Sensor Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. MAP SENSOR Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper between the (F856) 5-Volt Supply circuit and the (K1) MAP Sensor Signal circuit in the MAP Sensor harness connector. Turn the ignition on. With the scan tool, read the MAP Sensor signal voltage. Is the voltage above 4.8 volts with the jumper in place? Yes Replace the MAP Sensor in accordance with the service information. Refer to «SENSOR, MANIFOLD AIR PRESSURE (MAP), REMOVAL»(ref-646230-S40859222602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the MAP Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the MAP Sensor harness connector. Turn the ignition on. Measure the voltage of the (F856) 5-Volt Supply circuit at the MAP Sensor harness connector. Does the voltage measure above 5.0 volts? Yes Go To 3 No Repair the (F856) 5-Volt Supply circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK THE (K1) MAP SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Measure the voltage of the (K1) MAP Sensor Signal circuit at the MAP Sensor harness connector. Does the voltage measure above 5.0 volts? Yes Repair the (K1) MAP Sensor Signal circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECK THE (K1) MAP SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE Turn the ignition off. Disconnect the PCM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Measure the resistance of the (K1) MAP Sensor Signal between the MAP Sensor harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K1) MAP Sensor Signal for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K900) Sensor Ground circuit between the MAP Sensor harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 6 No Repair the (K900) Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. MAP SENSOR Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper between the (K900) Sensor Ground circuit and the (K1) MAP Sensor Signal circuit in the MAP Sensor harness connector. Turn the ignition on. With the scan tool, read the MAP Sensor signal voltage. Is the voltage below 0.1 volt with the jumper in place? Yes Replace the MAP Sensor in accordance with the service information. Refer to «SENSOR, MANIFOLD AIR PRESSURE (MAP), REMOVAL»(ref-646230-S40859222602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Manifold Absolute Pressure Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform the Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Turn the ignition on. Using the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK THE (K21) IAT SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the IAT Sensor harness connector. Turn the ignition on. Measure the voltage of the (K21) IAT Sensor Signal at the IAT Sensor harness connector. Is the voltage above 5.2 volts? Yes Go To 3 No Repair the (K21) IAT Signal circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK THE (K21) IAT SENSOR SIGNAL FOR AN OPEN/HIGH RESISTANCE Turn the ignition off. Disconnect the PCM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Measure the resistance of the (K21) IAT Sensor Signal circuit between the IAT Sensor harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (K21) IAT Sensor Signal circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K900) Sensor Ground circuit between the IAT Sensor harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K900) Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. INTAKE AIR TEMPERATURE SENSOR Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper between the (K21) IAT Sensor Signal circuit and the (K900) Sensor Ground in the IAT Sensor harness connector. Turn the ignition on. Using the scan tool, read the IAT Sensor signal voltage. Is the voltage below 0.1 volt with the jumper in place? Yes Replace the Intake Air Temperature Sensor in accordance with the service information. Refer to «SENSOR, AIR TEMPERATURE, INLET, REMOVAL»(ref-646230-S32572356132014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Intake Air Temperature Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK THE (K2) ECT SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the ECT Sensor harness connector. Disconnect the PCM C2 harness connector. Measure the resistance between ground and the (K2) ECT Sensor Signal circuit in the ECT Sensor harness connector. Is the resistance above 10k Ohms? Yes Go To 3 No Repair the (K2) ECT Sensor Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK FOR THE (K2) ECT SENSOR SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K2) ECT Sensor Signal circuit and the (K900) Sensor Ground circuit in the ECT Sensor harness connector. Is the resistance above 10k Ohms? Yes Go To 4 No Repair the (K2) ECT Sensor Signal circuit for a short to the (K900) Sensor Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. ENGINE COOLANT TEMPERATURE SENSOR Turn the ignition off. Reconnect the PCM C2 harness connector. Turn the ignition on. With the scan tool, read the ECT Sensor signal voltage. Is the voltage above 4.8 volts with the Engine Coolant Temperature Sensor connector unplugged? Yes Replace the Engine Coolant Temperature Sensor in accordance with the service information. Refer to «SENSOR, COOLANT TEMPERATURE, REMOVAL»(ref-646235-S14826286822014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Coolant Temperature Sensor 1 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK FOR THE (K2) ECT SENSOR SIGNAL CIRCUIT SHORTED TO ANOTHER VOLTAGE CIRCUIT Turn the ignition off. Disconnect the Engine Coolant Temperature (ECT) Sensor harness connector. Disconnect the PCM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Using the wiring diagram as a guide, measure the resistance between the (K2) ECT Sensor Signal circuit and all other 5 volt and 12 volt circuits at the GPEC Adaptor. Measure the voltage of the (K2) ECT Sensor Signal circuit in the Engine Coolant Temperature Sensor harness connector. Is the resistance above 10k Ohms between the (K2) ECT Sensor Signal circuit and all other 5 volt and 12 volt circuits? Yes Repair the (K2) ECT Sensor Signal circuit for a short to the circuit that measured below 10k circuits. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECK THE (K2) ECT SENSOR SIGNAL FOR AN OPEN/HIGH RESISTANCE Turn the ignition off. Measure the resistance of the (K2) ECT Sensor Signal circuit between the ECT Sensor harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (K2) ECT 1 Signal circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K900) Sensor Ground circuit between the ECT Sensor harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K900) Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. ENGINE COOLANT TEMPERATURE SENSOR Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper between the (K2) ECT Sensor Signal circuit and the (K900) Sensor Ground in the ECT Sensor harness connector. Turn the ignition on. With the scan tool, read the ECT Sensor signal voltage. Is the voltage below 0.1 volt with the jumper in place? Yes Replace the Engine Coolant Temperature Sensor in accordance with the service information. Refer to «SENSOR, COOLANT TEMPERATURE, REMOVAL»(ref-646235-S14826286822014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Coolant Temperature Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Start the engine and allow it to idle. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK FOR HIGH RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT Turn the ignition off. Disconnect the Throttle Body harness connector. Disconnect the PCM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Measure the resistance of the (F855) 5-Volt Supply circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 3 No Repair the (F855) 5-Volt Supply circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK FOR HIGH RESISTANCE IN THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT Measure the resistance of the (K22) Throttle Position Sensor Signal 1 circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (K22) Throttle Position Sensor Signal 1 circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK FOR HIGH RESISTANCE IN THE (K922) THROTTLE POSITION SENSOR GROUND CIRCUIT Measure the resistance of the (K922) Throttle Position Sensor Ground circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K922) Throttle Position Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. THROTTLE BODY Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Inspect the Throttle Body for any condition that would result in an incorrect signal, such as damage or contamination. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Throttle Body Assembly in accordance with the service information. Refer to «THROTTLE BODY, REMOVAL»(ref-646230-S20794439832014072800000) . Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) With the scan tool, erase the DTCs. Start the engine and Test drive the vehicle. With the scan tool, view the DTCs. Did the DTC return? Yes Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Repair is complete. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE NOTE: If there are any sensor reference high or low DTCs present, diagnose and repair those DTCs before proceeding with this diagnostic test. Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Throttle Body harness connector. Turn the ignition on. Measure the voltage of the (F855) 5-Volt Supply circuit at the Throttle Body harness connector. Is the between 4.9 and 5.1 volts? Yes Go To 3 No Repair the (F855) 5-Volt Supply circuit for an open circuit short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the PCM C2 harness connector. Measure the resistance between ground and the (K22) Throttle Position Sensor Signal 1 circuit at the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 4 No Repair the (K22) Throttle Position Sensor Signal 1 circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK FOR THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT SHORTED TO THE (K922) THROTTLE POSITION SENSOR GROUND CIRCUIT Measure the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and the (K922) Throttle Position Sensor Ground circuit at the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 5 No Repair the (K22) Throttle Position Sensor Signal 1 circuit for a short to the (K922) Throttle Position Sensor Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. CHECK FOR THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT SHORTED TO THE (K447) ETC MOTOR (+) CIRCUIT Measure the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and the (K447) ETC Motor (+) at the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 6 No Repair the short between the (K447) ETC Motor (+) circuit and the (K22) Throttle Position Sensor Signal 1 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CHECK FOR THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT SHORTED TO THE (K448) ETC MOTOR (-) CIRCUIT Measure the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and the (K448) ETC Motor (-) at the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 7 No Repair the short between the (K22) Throttle Position Sensor Signal 1 circuit and the (K448) ETC Motor (-) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. THROTTLE BODY Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper wire between the (F855) 5-Volt Supply circuit and the (K22) Throttle Position Sensor Signal 1 circuit in the Throttle Body harness connector. Turn the ignition on. With the scan tool, read the Throttle Position Sensor Signal 1 circuit voltage. Is the voltage above 4.8 volts with the jumper wire in place? Yes Replace the Throttle Body in accordance with the service information. Refer to «THROTTLE BODY, REMOVAL»(ref-646230-S20794439832014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE NOTE: If there are any sensor reference high or low DTCs present, diagnose and repair those DTCs before proceeding with this diagnostic test. Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK FOR THE (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO ANOTHER VOLTAGE CIRCUIT Turn the ignition off. Disconnect the Throttle Body harness connector. Disconnect the PCM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Using the wiring diagram as a guide, measure the resistance between the (F855) 5-Volt Supply circuit and all other 5-volt and 12-volt circuits at the GPEC Adaptor. Is the resistance between the (F855) 5-Volt Supply circuit and all other 5 volt and 12 volt power supply circuits above 10k Ohms? Yes Repair the (F855) 5-Volt Supply circuit for a short to the circuit that measured below 10k Ohms. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECK FOR THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY CIRCUIT Using the wiring diagram as a guide, measure the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and all other 5 volt and 12- volt power supply circuits at the GPEC Adaptor. Is the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and all other 5 volt and 12 volt power supply circuits above 10k Ohms? Yes Go To 4 No Repair the (K22) Throttle Position Sensor Signal 1 circuit for a short to the circuit that measured below 10k Ohms. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK FOR THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT SHORTED TO THE (F855) 5-VOLT SUPPLY CIRCUIT Measure the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and the (F855) 5-Volt Supply at the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 5 No Repair the (K22) Throttle Position Sensor Signal 1 circuit for a short to the (F855) 5-Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. CHECK FOR THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT SHORTED TO THE (K447) ETC MOTOR (+) CIRCUIT Measure the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and the (K447) ETC Motor (+) at the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 6 No Repair the (K447) ETC Motor (+) circuit for a short to the (K22) Throttle Position Sensor Signal 1 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CHECK FOR THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT SHORTED TO THE (K448) ETC MOTOR (-) CIRCUIT Measure the resistance between the (K22) Throttle Position Sensor Signal 1 circuit and the (K448) ETC Motor (-) at the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 7 No Repair the (K22) Throttle Position Sensor Signal 1 circuit for a short to the (K448) ETC Motor (-) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. CHECK THE (K22) THROTTLE POSITION SENSOR SIGNAL 1 CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K22) Throttle Position Sensor Signal 1 between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 8 No Repair the (K22) Throttle Position Sensor Signal 1 for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. CHECK THE (K922) THROTTLE POSITION SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K922) Throttle Position Sensor Ground circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 9 No Repair the (K922) Throttle Position Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  9. THROTTLE BODY Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper between the (K922) Throttle Position Sensor Ground circuit and the (K22) Throttle Position Sensor Signal 1 circuit in the Throttle Body harness connector. Turn the ignition on. With the scan tool, read the Throttle Position Sensor Signal 1 circuit voltage. Is the voltage below 1.0 volt with the jumper in place? Yes Replace the Throttle Body in accordance with the service information. Refer to «THROTTLE BODY, REMOVAL»(ref-646230-S20794439832014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 10
  10. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .

CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION

Note. Diagnose and repair any engine coolant temperature sensor circuit DTCs before proceeding with this test.

Note. Extremely cold ambient temperatures may cause this DTC to set.

  1. Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  1. CHECKING THE TEMPERATURE SENSORS NOTE: Diagnose and repair any Ambient Air Temperature (AAT), Intake Air Temperature (IAT), or Engine Coolant Temperature (ECT) Sensor circuit or rationality DTCs before continuing with this test. NOTE: Diagnose and repair any Crankshaft Position (CKP) or Camshaft Position (CMP) Sensor circuit or rationality DTCs before continuing with this test. NOTE: Diagnose and repair any communication DTCs before continuing with this test. NOTE: Verify that the Pinion Factor has been programmed correctly into the PCM. Perform the diagnostic procedure for CHECKING THE TEMPERATURE SENSORS. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 2
  2. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .

CHECKING THE MAP SENSOR OPERATION

Note. Diagnose and repair any MAP sensor circuit DTCs before continuing with this test.

  1. Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  1. OXYGEN SENSOR 1/1 HEATER CONTROL OPERATION Turn the ignition off. NOTE: Wait a minimum of 8 minutes to allow the sensor to cool down before continuing. The sensor voltage should stabilize between 2.47 and 2.52 volts. Turn the ignition on. With a scan tool, actuate the Oxygen Sensor 1/1 heater control. With the scan tool, monitor O2 Sensor 1/1 volts for at least two minutes. Does the voltage stay between 2.47 and 2.52 volts? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. OXYGEN SENSOR 1/1 Turn the ignition off. NOTE: Wait a minimum of 8 minutes to allow the sensor to cool down before continuing. Disconnect the Oxygen Sensor 1/1 harness connector. Measure the resistance of the O2 Sensor 1/1 heater element across the Oxygen Sensor 1/1 connector between the heater control terminal and the ground terminal. NOTE: The O2 heater element resistance should be measured at 70°F (21.1°C). The resistance value will vary at different temperatures. Is the resistance between 2.0 and 30.0 Ohms? Yes Go To 3 No Replace the Oxygen Sensor 1/1 in accordance with the service information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. HIGH RESISTANCE IN THE (K99) O2 SENSOR 1/1 HEATER CONTROL CIRCUIT Turn the ignition off. Disconnect the Oxygen Sensor 1/1 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance of the (K99) O2 Sensor 1/1 Heater Control circuit between the Oxygen Sensor 1/1 harness connector and the Powertrain Control Module (PCM) C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (K99) O2 Sensor 1/1 Heater Control circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. HIGH RESISTANCE IN THE (Z904) GROUND CIRCUIT Measure the resistance between battery (-) and the (Z904) Ground circuit in the O2 Sensor harness connector. NOTE: A good chassis ground can also be used in place of the battery (-). Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the excessive resistance in the (Z904) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/1 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. OXYGEN SENSOR 1/2 VOLTAGE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With a scan tool, monitor the O2 Sensor 1/2 volts. Is the voltage less than 2.1 volts? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Oxygen Sensor 1/2 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance between ground and the (K141) O2 Sensor 1/2 Signal circuit in the Oxygen Sensor 1/2 harness connector. Is the resistance below 100 Ohms? Yes Repair the (K141) O2 Sensor 1/2 Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO THE (K904) O2 SENSOR 1/2 RETURN CIRCUIT Measure the resistance between the (K141) O2 Sensor 1/2 Signal circuit and the (K904) O2 Sensor 1/2 Return circuit in the Oxygen Sensor 1/2 harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K904) O2 Sensor 1/2 Return circuit and the (K141) O2 Sensor 1/2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO THE (Z904) GROUND CIRCUIT Measure the resistance between the (K141) O2 Sensor 1/2 Signal circuit and the (Z904) Ground circuit in the Oxygen Sensor 1/2 harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (Z904) Ground circuit and the (K141) O2 Sensor 1/2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. O2 SENSOR 1/2 Reconnect the Oxygen Sensor 1/2 harness connector. Reconnect the Powertrain Control Module (PCM) C2 harness connector. Turn the ignition on. With the scan tool erase DTCs. Turn the ignition off. Disconnect the Oxygen Sensor 1/2 harness connector. Connect a jumper between the (K141) O2 Sensor 1/2 Signal circuit and the (Z904) Ground circuit. Start the engine and allow it to idle. With the scan tool, view DTCs. Does the P0132-O2 SENSOR 1/2 CIRCUIT HIGH DTC become active or pending with the jumper in place? Yes Replace the O2 Sensor in accordance with the service information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/2 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. OXYGEN SENSOR 1/2 VOLTAGE Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With a scan tool, monitor the 1/2 O2 Sensor Volts. Is the voltage greater than 3.1 volts? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY Turn the ignition off. Disconnect the Oxygen Sensor 1/2 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance between the (K141) O2 Sensor 1/2 Signal circuit and all other 5 volt and 12 volt supply circuits at the PCM C2 harness connector. Is the resistance above 1000 Ohms between the (K141) O2 Sensor 1/2 Signal circuit and all other 5 volt and 12 volt supply circuits? Yes Go To 3 No Repair the (K141) O2 Sensor 1/2 Signal circuit for a short to the circuit that measured below 1000 Ohms. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K141) O2 Sensor /1 Signal circuit between the Oxygen Sensor 1/2 harness connector to the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (K141) O2 Sensor 1/2 Signal circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. (K902) O2 SENSOR 1/2 RETURN CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K902) O2 Sensor 1/2 Return circuit between the Oxygen Sensor 1/2 harness connector to the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K902) O2 Sensor 1/2 Return circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. OXYGEN SENSOR 1/2 Turn the ignition off. Reconnect the Powertrain Control Module (PCM) harness connector. Connect a jumper wire between the (K141) O2 Sensor 1/2 Signal circuit and the (K902) O2 Sensor 1/2 Return circuit in the Oxygen Sensor 1/2 harness connector. Turn the ignition on. With a scan tool, monitor the O2 Sensor 1/2 volts. NOTE: The sensor should read at or very neat zero volts with the jumper in place. Is the voltage at or very neat zero volts with the jumper wire in place? Yes Replace the Oxygen Sensor 1/2 in accordance with the service information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/2 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. EXHAUST LEAK NOTE: A thorough exhaust leak test must be completed before removing an O2 Sensor or any other part from the exhaust system. Do not remove any parts before an exhaust leak check has been completed. NOTE: An exhaust leak may cause downstream fuel adaptives to rail out, resulting in a false 1/1 O2 Sensor failure. Turn the ignition off. Inspect the exhaust system for leaks between the engine and the 1/1 Oxygen Sensor. Perform a leak test with the Evaporative Emissions Leak Detector (EELD) (special tool #8404B, Kit, EELD And Accessory), even if an audible leak is not heard. Pay particular attention to the exhaust manifold to head surface, exhaust pipe to manifold connection, and the O2 sensor boss for leaks. Connect the SMOKE supply tip (black hose) to the exhaust cone adapter (if equipped) and place it into the tail pipe. Set the smoke/air control switch to SMOKE. Press the remote smoke/air start button. While still holding the remote smoke/air start button, use the white light ((special tool #8404-CLL, Light, White)) to follow the exhaust system path and look for a leak, indicated by exiting smoke. If a leak is concealed from view, release the remote smoke/air start button and use the ultraviolet (UV) black light (special tool #8404-UVL, Light, UV) and the yellow goggles (special tool #8404-20, Goggles, Yellow) to look for residual traces of dye that is left behind by the smoke. The exiting smoke deposits a residual fluid that is either bright green or bright yellow in color when viewed with a UV light. Were any exhaust leaks found? Yes Go To 10 No Go To 2
  2. DTC IS ACTIVE NOTE: Check for contaminants that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 3 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  3. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY Turn the ignition off. Disconnect the Oxygen Sensor 1/2 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance between the (K141) O2 Sensor 1/2 Signal circuit and all other 5 volt and 12 volt supply circuits at the PCM C2 harness connector. Is the resistance above 1000 Ohms between the (K141) O2 Sensor 1/2 Signal circuit and all other 5 volt and 12 volt supply circuits? Yes Go To 4 No Repair the (K141) O2 Sensor 1/2 Signal circuit for a short to the circuit that measured below 1000 Ohms. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. (K904) O2 SENSOR 1/2 RETURN CIRCUIT SHORTED TO VOLTAGE Measure the resistance between the (K904) O2 Sensor 1/2 Return circuit and all other 5 volt and 12 volt supply circuits at the PCM C2 harness connector. Is the resistance above 1000 Ohms between the (K141) O2 Sensor 1/2 Signal circuit and all other 5 volt and 12 volt supply circuits? Yes Repair the (K904) O2 Sensor 1/2 Return circuit for a short to the circuit that measured below 1000 Ohms. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (K141) O2 Sensor 1/2 Signal circuit in the Oxygen Sensor 1/2 harness connector. Is the resistance below 100 Ohms? Yes Repair the (K141) O2 Sensor 1/2 Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. (K904) O2 SENSOR 1/2 RETURN CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K904) O2 Sensor 1/2 Return circuit in the Oxygen Sensor 1/2 harness connector. Is the resistance below 100 Ohms? Yes Repair the (K904) O2 Sensor 1/2 Return circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K141) O2 Sensor 1/2 Signal circuit between the Oxygen Sensor 1/2 harness connector to the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 Ohms? Yes Go To 8 No Repair the (K141) O2 Sensor 1/2 Signal circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. (K904) O2 SENSOR 1/2 RETURN CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K904) O2 Sensor 1/2 Return circuit between the Oxygen Sensor 1/2 harness connector to the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 Ohms? Yes Go To 9 No Repair the (K904) O2 Sensor 1/2 Return circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  9. OXYGEN SENSOR 1/2 NOTE: Prior to replacing the O2 sensor, verify that the correct part number is being used in order to prevent improper O2 Sensor heater control. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/2 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Oxygen Sensor 1/2 in accordance with the Service Information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  10. EXHAUST LEAK Repair the exhaust leak(s) as necessary. Start the engine and allow it to reach operating temperature. Test drive the vehicle for at least 5 minutes. During the test drive, accelerate from 32 KPH (20 MPH) to 120.7 KPH (75 MPH), then release the accelerator pedal for at least 3 seconds. Repeat this procedure a minimum of 10 times. Stop the vehicle and turn the ignition off for 5 seconds. Test drive the vehicle again for at least 5 minutes. During the test drive, accelerate from 32 KPH (20 MPH) to 120.7 KPH (75 MPH), then release the accelerator pedal for at least 3 seconds. Repeat this procedure a minimum of 10 times. Stop the vehicle. With the scan tool, select View DTCs. Does this DTC reset as a pending or stored DTC? Yes Retest. Go To 1 No Test Complete. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. OXYGEN SENSOR 1/2 HEATER CONTROL OPERATION Turn the ignition off. NOTE: Wait a minimum of 8 minutes to allow the sensor to cool down before continuing. The sensor voltage should stabilize between 2.47 and 2.52 volts. Turn the ignition on. With a scan tool, actuate the Oxygen Sensor 1/2 heater control. With the scan tool, monitor O2 Sensor 1/2 volts for at least two minutes. Does the voltage stay between 2.47 and 2.52 volts? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. OXYGEN SENSOR 1/2 Turn the ignition off. NOTE: Wait a minimum of 8 minutes to allow the sensor to cool down before continuing. Disconnect the Oxygen Sensor 1/2 harness connector. Measure the resistance of the O2 Sensor 1/2 heater element across the Oxygen Sensor 1/2 connector between the heater control terminal and the ground terminal. NOTE: The O2 heater element resistance should be measured at 70°F (21.1°C). The resistance value will vary at different temperatures. Is the resistance between 2.0 and 30.0 Ohms? Yes Go To 3 No Replace the Oxygen Sensor 1/2 in accordance with the service information. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-646230-S13401513602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. HIGH RESISTANCE IN THE (K299) O2 SENSOR 1/2 HEATER CONTROL CIRCUIT Turn the ignition off. Disconnect the Oxygen Sensor 1/2 harness connector. Disconnect the Powertrain Control Module (PCM) C2 harness connector. Measure the resistance of the (K299) O2 Sensor 1/2 Heater Control circuit between the Oxygen Sensor 1/2 harness connector and the Powertrain Control Module (PCM) C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (K299) O2 Sensor 1/2 Heater Control circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. HIGH RESISTANCE IN THE (Z904) GROUND CIRCUIT Measure the resistance between battery (-) and the (Z904) Ground circuit in the O2 Sensor harness connector. NOTE: A good chassis ground can also be used in place of the battery (-). Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the excessive resistance in the (Z904) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 1/2 and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins (TSBs) that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Diagnose and repair any other active component or circuit DTCs before continuing with this procedure. Turn the ignition on. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECKING THE EXHAUST SYSTEM FOR LEAKS Perform the diagnostic procedure for CHECKING THE EXHAUST SYSTEM FOR LEAKS. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE FUEL DELIVERY SYSTEM Perform the diagnostic procedures for FUEL PRESSURE LEAK DOWN and FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CHECKING THE MAP SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to the components tested in this procedure. Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to the components tested in this procedure and wiggle test the wiring and connectors. Look for the data to change or for a DTC to set during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Diagnose and repair any other active component or circuit DTCs before continuing with this procedure. Turn the ignition on. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECKING THE FUEL DELIVERY SYSTEM Perform the diagnostic procedures for FUEL PRESSURE LEAK DOWN and FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE MAP SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to the components tested in this procedure. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to the components tested in this procedure and wiggle test the wiring and connectors. Look for the data to change or for a DTC to set during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Engine Oil Temperature Sensor harness connector. Disconnect the PCM C2 harness connector. Measure the resistance between ground and the (G24) Engine Oil Temperature Sensor Signal circuit in the Engine Oil Temperature Sensor harness connector. Is the resistance above 100 Ohms? Yes Go To 3 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (G24) Engine Oil Temperature Sensor Signal circuit and the (K900) Sensor Ground circuit in the Engine Oil Temperature Sensor harness connector. Is the resistance above 100 Ohms? Yes Go To 4 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for a short to the (K900) Sensor Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. ENGINE OIL TEMPERATURE SENSOR Reconnect the PCM C2 harness connector. Turn the ignition on. With the scan tool, read the Engine Oil Temperature Sensor signal voltage. Is the voltage above 4.5 volts with the Engine Oil Temperature Sensor harness disconnected? Yes Replace the Engine Oil Temperature Sensor in accordance with the Service Information. Refer to «SENSOR, OIL TEMPERATURE, REMOVAL»(ref-646216-S12301894822014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Oil Temperature Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform the Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE NOTE: Diagnose and repair any system voltage or sensor reference voltage DTCs before continuing with this test. Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO ANOTHER VOLTAGE CIRCUIT Turn the ignition off. Disconnect the PCM C2 harness connector. Disconnect the Engine Oil Temperature Sensor harness connector. Measure the resistance between the (G24) Engine Oil Temperature Sensor Signal circuit and all other 5-volt and 12-volt circuits at the PCM C2 harness connector. Is the resistance above 1000 Ohms between the (G6) Engine Oil Temperature Signal circuit and all other 5-volt and 12-volt circuits? Yes Go To 3 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for a short to the circuit that measured below 1000 circuits. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL OPEN OR HIGH RESISTANCE Measure the resistance of the (G24) Engine Oil Temperature Sensor Signal circuit between the EOT Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. (K900) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K900) Sensor Ground circuit between the Engine Oil Temperature Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K900) Sensor Ground circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. ENGINE OIL TEMPERATURE SENSOR Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper wire between the (G24) Engine Oil Temperature Sensor Signal circuit and the (K900) Sensor Ground in the Engine Oil Temperature Sensor harness connector. Turn the ignition on. With the scan tool, read the Engine Oil Temperature Sensor signal voltage. Is the voltage below 1.0 volt with the jumper wire in place? Yes Replace the Engine Oil Temperature Sensor in accordance with the Service Information. Refer to «SENSOR, OIL TEMPERATURE, REMOVAL»(ref-646216-S12301894822014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Oil Temperature Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Start the engine and allow it to idle. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK FOR HIGH RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT Turn the ignition off. Disconnect the Throttle Body harness connector. Disconnect the PCM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Measure the resistance of the (F855) 5-Volt Supply circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 3 No Repair the (F855) 5-Volt Supply circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK FOR HIGH RESISTANCE IN THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT Measure the resistance of the (K122) Throttle Position Sensor Signal 2 circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the (K122) Throttle Position Sensor Signal 2 circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK FOR HIGH RESISTANCE IN THE (K922) THROTTLE POSITION SENSOR GROUND CIRCUIT Measure the resistance of the (K922) Throttle Position Sensor Ground circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the (K922) Throttle Position Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. THROTTLE BODY Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Inspect the Throttle Body for any condition that would result in an incorrect signal, such as damage or contamination. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Throttle Body in accordance with the service information. Refer to «THROTTLE BODY, REMOVAL»(ref-646230-S20794439832014072800000) . Go To 6
  6. POWERTRAIN CONTROL MODULE (PCM) With the scan tool, erase the DTCs. Start the engine and Test drive the vehicle. With the scan tool, view the DTCs. Did the DTC return? Yes Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Repair is complete. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC NOTE: Diagnose and repair any system voltage or sensor reference voltage DTCs before continuing with this test. NOTE: If there are any sensor reference high or low DTCs present, diagnose and repair those DTCs before proceeding with this diagnostic test. Turn the ignition on. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Throttle Body harness connector. Turn the ignition on. Measure the voltage of the (F855) 5-Volt Supply circuit in the Throttle Body harness connector. Is the voltage between 4.9 and 5.1 volts? Yes Go To 3 No Repair the (F855) 5-Volt Supply circuit for an open circuit or short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. CHECK THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the PCM C2 harness connector. Measure the resistance between ground and the (K122) Throttle Position Sensor Signal 2 circuit in the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 4 No Repair the (K122) Throttle Position Sensor Signal 2 circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK FOR THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT SHORTED TO THE (K922) THROTTLE POSITION SENSOR GROUND CIRCUIT Measure the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and the (K922) Throttle Position Sensor Ground circuit in the Throttle Body harness connector. Is the resistance above 100 Ohms? Yes Go To 5 No Repair the (K122) Throttle Position Sensor Signal 2 circuit for a short to the (K922) Throttle Position Sensor Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. CHECK FOR THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT SHORTED TO THE (K447) ETC MOTOR (+) CIRCUIT Measure the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and the (K447) ETC Motor (+) in the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 6 No Repair the (K447) ETC Motor (+) circuit for a short to the (K122) Throttle Position Sensor Signal 2 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT SHORTED TO THE (K448) ETC MOTOR (-) CIRCUIT Measure the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and the (K448) ETC Motor (-) in the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 7 No Repair the (K122) Throttle Position Sensor Signal 2 circuit for a short to the (K448) ETC Motor (-) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. CHECK THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT FOR AN OPEN/HIGH RESISTANCE CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Measure the resistance of the (K122) Throttle Position Sensor Signal 2 between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 8 No Repair the (K122) Throttle Position Sensor Signal 2 for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. THROTTLE BODY Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper between the (F855) 5-Volt Supply circuit and the (K122) Throttle Position Sensor Signal 2 circuit in the Throttle Body harness connector. Turn the ignition on. With the scan tool, read the Throttle Position Sensor Signal 2 circuit voltage. Is the voltage above 4.8 volts with the jumper in place? Yes Replace the Throttle Body in accordance with the service information. Refer to «THROTTLE BODY, REMOVAL»(ref-646230-S20794439832014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle Test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC NOTE: Diagnose and repair any system voltage or sensor reference voltage DTCs before continuing with this test. Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CHECK FOR THE (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY CIRCUIT Turn the ignition off. Disconnect the Throttle Body harness connector. Disconnect the PCM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the (special tool #10436, Adapter, GPEC Diagnostic). Using the wiring diagram as a guide, measure the resistance between the (F855) 5-Volt Supply circuit and all other 5 volt and 12 volt circuits at the GPEC Adaptor. Is the resistance between the (F855) 5-Volt Supply circuit and all other 5 volt and 12 volt power supply circuits above 10k Ohms? Yes Repair the (F855) 5-Volt Supply circuit for a short to the circuit that measured below 10k Ohms. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECK FOR THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY CIRCUIT Using the wiring diagram as a guide, measure the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and all other 5 volt and 12 volt power supply circuits at the GPEC Adaptor. Is the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and all other 5-volt and 12-volt power supply circuits above 10k Ohms? Yes Go To 4 No Repair the (K22) Throttle Position Sensor Signal 1 circuit for a short to the circuit that measured below 10k Ohms. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. CHECK FOR THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT SHORTED TO THE (F855) 5-VOLT SUPPLY CIRCUIT Measure the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and the (F855) 5-Volt Supply in the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 5 No Repair the (K122) Throttle Position Sensor Signal 2 circuit for a short to the (F855) 5-Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. CHECK FOR THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT SHORTED TO THE (K447) ETC MOTOR (+) CIRCUIT Measure the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and the (K447) ETC Motor (+) in the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 6 No Repair the (K447) ETC Motor (+) circuit for a short to the (K122) Throttle Position Sensor Signal 2 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CHECK FOR THE (K122) THROTTLE POSITION SENSOR SIGNAL 2 CIRCUIT SHORTED TO THE (K448) ETC MOTOR (-) CIRCUIT Measure the resistance between the (K122) Throttle Position Sensor Signal 2 circuit and the (K448) ETC Motor (-) in the Throttle Body harness connector. Is the resistance above 10k Ohms? Yes Go To 7 No Repair the (K122) Throttle Position Sensor Signal 2 circuit for a short to the (K448) ETC Motor (-) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. CHECK THE (K922) THROTTLE POSITION SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K922) Throttle Position Sensor Ground circuit between the Throttle Body harness connector and the GPEC Adaptor. Is the resistance below 5.0 Ohms? Yes Go To 8 No Repair the (K922) Throttle Position Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. THROTTLE BODY Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper between the (K922) Throttle Position Sensor Ground circuit and the (K122) Throttle Position Sensor Signal 2 circuit in the Throttle Body harness connector. Turn the ignition on. With the scan tool, read the Throttle Position Sensor Signal 2 circuit voltage. Is the voltage below 0.1 volt with the jumper in place? Yes Replace the Throttle Body in accordance with the service information. Refer to «THROTTLE BODY, REMOVAL»(ref-646230-S20794439832014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle Test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE NOTE: Diagnose any CAN - C Communication DTCs before continuing. Turn the ignition off. If possible, allow the vehicle to sit with the ignition off for more than 60 minutes in an environment where the temperature will allow the oil temperature to cool down. Start the engine and allow it to reach normal operating conditions. With a scan tool, select View DTCs. Is the status Active or Pending for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. ENGINE OIL The following conditions must be checked: OEM recommended oil viscosity is being used. Customer is following the oil change schedule. Check the engine oil for contamination. (i.e., fuel and/or engine coolant) Internal engine condition that may effect oil pressure. Were any of the above conditions found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO ANOTHER VOLTAGE CIRCUIT Turn the ignition off. Disconnect the PCM C2 harness connector. Disconnect the Engine Oil Temperature Sensor harness connector. Measure the resistance between the (G24) Engine Oil Temperature Sensor Signal circuit and all other 5-volt and 12-volt circuits at the PCM C2 harness connector. Is the resistance above 1000 Ohms between the (G6) Engine Oil Temperature Signal circuit and all other 5-volt and 12-volt circuits? Yes Go To 4 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for a short to the circuit that measured below 1000 circuits. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (G24) Engine Oil Temperature Sensor Signal circuit in the Engine Oil Temperature Sensor harness connector. Is the resistance above 100 Ohms? Yes Go To 5 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (G24) Engine Oil Temperature Sensor Signal circuit and the (K900) Sensor Ground circuit in the Engine Oil Temperature Sensor harness connector. Is the resistance above 100 Ohms? Yes Go To 6 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for a short to the (K900) Sensor Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. (G24) ENGINE OIL TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (G24) Engine Oil Temperature Sensor Signal circuit between the Engine Oil Temperature Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 7 No Repair the (G24) Engine Oil Temperature Sensor Signal circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. (K900) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K900) Sensor Ground circuit between the Engine Oil Temperature Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 8 No Repair the (K900) Sensor Ground for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. ENGINE OIL TEMPERATURE SENSOR Turn the ignition off. Reconnect the PCM C2 harness connector. Connect a jumper wire between the (K900) Sensor Ground circuit and the (G24) Engine Oil Temperature Sensor Signal circuit in the Engine Oil Temperature Sensor harness connector. Turn the ignition on. With the scan tool, read the Engine Oil Temperature Sensor signal voltage. Is the voltage below 1.0 volt with the jumper wire in place? Yes Replace the Engine Oil Temperature Sensor in accordance with the Service Information. Refer to «SENSOR, OIL TEMPERATURE, REMOVAL»(ref-646216-S12301894822014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Oil Temperature Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Diagnose and repair any other active component or circuit DTCs before continuing with this procedure. Turn the ignition on. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. DIAGNOSTIC INSPECTION NOTE: Anything that affects the speed of the crankshaft can cause this DTC to set. NOTE: When a misfire is detected, the PCM will shut down the injector control circuit for the misfiring cylinder. NOTE: Misfire may occur and may not be caused by component failure. Any of the following conditions can cause a misfire: Inspect the engine for any of the following conditions: Worn serpentine belt Misalignment or binding water pump, P/S Pump or A/C Compressor pulleys Improper CKP, CMP, MAP, or Throttle Position Sensor mounting. Poor connector/terminal to component connection for CKP Sensor, CMP Sensor, MAP Sensor, TP Sensor, Fuel Injector, Ignition Coil, etc. Corroded PCM power or ground circuits. Vacuum leaks. Restriction in the air induction or exhaust system. Internal engine component malfunction. Moisture on ignition system components Insufficient fuel Low quality fuel Manual transmission bog Towing overload Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE FUEL DELIVERY SYSTEM Perform the diagnostic procedures for FUEL PRESSURE LEAK DOWN and FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE IGNITION COIL OPERATION Perform the diagnostic procedure for CHECKING THE IGNITION COIL OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. CHECKING THE MAP SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to the components tested in this procedure. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any technical service bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Diagnose and repair any other active component or circuit DTCs before continuing with this procedure. Turn the ignition on. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. DIAGNOSTIC INSPECTION NOTE: Anything that affects the speed of the crankshaft can cause this DTC to set. NOTE: When a misfire is detected, the PCM will shut down the injector control circuit for the misfiring cylinder. NOTE: Misfire may occur and may not be caused by component failure. Any of the following conditions can cause a misfire: Worn serpentine belt. Misalignment or binding water pump, P/S Pump or A/C Compressor pulleys. Improper CKP, CMP, MAP, or Throttle Position Sensor mounting. Poor connector/terminal to component connection for CKP Sensor, CMP Sensor, MAP Sensor, TP Sensor, Fuel Injector, Ignition Coil, etc. Corroded PCM power or ground circuits. Vacuum leaks. Restriction in the air induction or exhaust system. Internal engine component malfunction. Moisture on ignition system components. Insufficient fuel. Low quality fuel. Manual transmission bog. Towing overload. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE FUEL DELIVERY SYSTEM Perform the diagnostic procedures for FUEL PRESSURE LEAK DOWN and FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE IGNITION COIL OPERATION Perform the diagnostic procedure for CHECKING THE IGNITION COIL OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. CHECKING THE MAP SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to the components tested in this procedure. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any technical service bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Diagnose and repair any other active component or circuit DTCs before continuing with this procedure. Turn the ignition on. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. DIAGNOSTIC INSPECTION NOTE: Anything that affects the speed of the crankshaft can cause this DTC to set. NOTE: When a misfire is detected, the PCM will shut down the injector control circuit for the misfiring cylinder. NOTE: Misfire may occur and may not be caused by component failure. Any of the following conditions can cause a misfire: Worn serpentine belt. Misalignment or binding water pump, P/S Pump or A/C Compressor pulleys. Improper CKP, CMP, MAP, or Throttle Position Sensor mounting. Poor connector/terminal to component connection for CKP Sensor, CMP Sensor, MAP Sensor, TP Sensor, Fuel Injector, Ignition Coil, etc. Corroded PCM power or ground circuits. Vacuum leaks. Restriction in the air induction or exhaust system. Internal engine component malfunction. Moisture on ignition system components. Insufficient fuel. Low quality fuel. Manual transmission bog. Towing overload. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE FUEL DELIVERY SYSTEM Perform the diagnostic procedures for FUEL PRESSURE LEAK DOWN and FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE IGNITION COIL OPERATION Perform the diagnostic procedure for CHECKING THE IGNITION COIL OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. CHECKING THE MAP SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to the components tested in this procedure. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any technical service bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the PCM in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE Diagnose and repair any other active component or circuit DTCs before continuing with this procedure. Turn the ignition on. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. DIAGNOSTIC INSPECTION NOTE: Anything that affects the speed of the crankshaft can cause this DTC to set. NOTE: When a misfire is detected, the PCM will shut down the injector control circuit for the misfiring cylinder. Worn serpentine belt. Misalignment or binding water pump, P/S Pump or A/C Compressor pulleys. Improper CKP, CMP, MAP, or Throttle Position Sensor mounting. Poor connector/terminal to component connection for CKP Sensor, CMP Sensor, MAP Sensor, TP Sensor, Fuel Injector, Ignition Coil, etc. Corroded PCM power or ground circuits. Vacuum leaks. Restriction in the air induction or exhaust system. Internal engine component malfunction. NOTE: Misfire may occur and may not be caused by component failure. Any of the following conditions can cause a misfire: Moisture on ignition system components. Insufficient fuel. Low quality fuel. Manual transmission bog. Towing overload. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE FUEL DELIVERY SYSTEM Perform the diagnostic procedures for FUEL PRESSURE LEAK DOWN and FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE IGNITION COIL OPERATION Perform the diagnostic procedure for CHECKING THE IGNITION COIL OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. CHECKING THE MAP SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to the components tested in this procedure. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any technical service bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC Diagnose and repair any other active component or circuit DTCs before continuing with this procedure. Turn the ignition on. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. DIAGNOSTIC INSPECTION NOTE: Anything that affects the speed of the crankshaft can cause this DTC to set. NOTE: When a misfire is detected, the PCM will shut down the injector control circuit for the misfiring cylinder. NOTE: Misfire may occur and may not be caused by component failure. Any of the following conditions can cause a misfire: Worn serpentine belt. Misalignment or binding water pump, P/S Pump or A/C Compressor pulleys. Improper CKP, CMP, MAP, or Throttle Position Sensor mounting. Poor connector/terminal to component connection for CKP Sensor, CMP Sensor, MAP Sensor, TP Sensor, Fuel Injector, Ignition Coil, etc. Corroded PCM power or ground circuits. Vacuum leaks. Restriction in the air induction or exhaust system. Internal engine component malfunction. Moisture on ignition system components. Insufficient fuel. Low quality fuel. Manual transmission bog. Towing overload. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE FUEL DELIVERY SYSTEM Perform the CHECKING THE FUEL DELIVERY SYSTEM test procedure. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE IGNITION COIL OPERATION Perform the diagnostic procedure for CHECKING THE IGNITION COIL OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Were any problems found? Yes Repair as necessary in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. CHECKING THE MAP SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE MAP SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to the components tested in this procedure. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. CHECK FOR APPLICABLE TSB Check for any applicable TSBs that may apply for this issue. Were any TSBs applicable? Yes Perform the applicable TSB. Erase the DTC and perform the verification test. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 2
  2. DTC IS ACTIVE Turn the ignition on. Read and copy the DTC's and Freeze Frame Data. Start the engine, or crank the engine for 10 seconds. NOTE: If the vehicle starts and runs, wiggle test the wiring and see if problem duplicates or the fault sets. Is the status Active for this DTC? Yes Go To 5 No Go To 3
  3. WIRE HARNESS/CKP SENSOR INSPECTION Turn the ignition off. Disconnect the harness connectors at the PCM and Crank Sensor and inspect for wire chaffing or rub conditions, terminals pushed out on the wiring connector, bent terminals at the PCM and Crank Sensor, water in the connector cavities, presence of corrosion on the terminals of the connectors or components. Visually inspect the mounting area of Crank Sensor for debris/damage or a loose sensor. Remove the Crank Sensor and inspect the end of the sensor for signs of damage or debris. Rotate the engine and if possible, inspect the target wheel for any signs of damage. Reinstall the Crank Sensor and ensure that the sensor is properly installed and torqued to proper specification. NOTE: Due to the fact that this DTC is set by an intermittent loss of the signal, the most likely cause is a poor connection at the Crank Sensor or PCM terminals, or a poor signal between the Crank Sensor and target wheel. Because of this, unplugging and reconnecting the harness connectors, or repositioning the Crank Sensor will often repair the condition that set the DTC. Were any problems found? Yes Perform the appropriate repair. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECK THE VEHICLE'S REPAIR HISTORY Check the history of the vehicle for previous crank sensor related DTCs within the past 90 days. Did the repair history show that the vehicle was in dealership for a crank sensor fault within the past 90 days? Yes Replace the Crank Sensor in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Test complete. Reconnect the harness connectors, and erase the DTC. The most likely cause was a poor connection at one of the harness connectors. Verify the DTC does not return. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the CKP Sensor harness connector. Turn the ignition on. Measure the voltage of the (F855) 5-Volt Supply circuit at the CKP Sensor harness connector. Is the voltage between 4.8 and 5.2 volts? Yes Go To 6 No, voltage is below 4.8 volts: Repair the (F855) 5-Volt Supply circuit for an open or short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No, voltage is above 5.2 volts: Repair the (F855) 5-Volt Supply circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CHECK THE (K24) CKP SIGNAL CIRCUIT VOLTAGE Measure the voltage of the (K24) CKP Signal circuit at the CKP Sensor harness connector. Is the voltage between 4.8 and 5.2 volts? Yes Go To 7 No Go To 9 No Repair the CKP Sensor Signal circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. CHECK THE (K925) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Turn the ignition off. Disconnect the PCM C2 harness connector. Measure the resistance of the (K925) CKP Sensor Ground circuit between the CKP Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 8 No Repair the (K925) CKP Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. TONE WHEEL/PULSE RING INSPECTION Turn the ignition off. Disconnect the battery ground cable. Remove the CKP Sensor. Visually inspect the sensor mounting location for damage, foreign material. Rotate the engine and if possible inspect the target wheel for any signs of damage. Were any problems found? Yes Repair Issues in mounting location. Repair or replace the Tone Wheel / Pulse Ring as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Crank Position Sensor in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  9. CHECK THE (K24) CKP SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the PCM C2 harness connector. Measure the resistance between ground and the (K24) CKP Signal circuit at the Crankshaft Position Sensor harness connector. Is the resistance above 10K Ohms? Yes Go To 10 No Repair the (K24) CKP Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  10. CHECK THE (K24) CKP SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K24) CKP Signal circuit between the Crankshaft Position Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 11 No Repair the (K24) CKP Signal circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  11. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Crankshaft Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the CKP Sensor and Powertrain Control Module connectors. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. NOTE: Due to the fact that this DTC is set by an intermittent loss of the signal, the most likely cause is a poor connection at the Crank Sensor or PCM terminals, or a poor signal between the Crank Sensor and target wheel. Because of this, unplugging and reconnecting the harness connectors, or repositioning the Crank Sensor will often repair the condition that set the DTC. Were any problems found? Yes Perform the appropriate repair. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. CHECK FOR APPLICABLE TSB Check for any applicable TSBs that may apply for this issue. Were any TSBs applicable? Yes Perform the applicable TSB. Erase the DTC and perform the verification test. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 2
  2. DTC IS ACTIVE Turn the ignition on. Read and copy the DTC's and Freeze Frame Data. Start the engine, or crank the engine for 10 seconds. NOTE: If the vehicle starts and runs, wiggle test the wiring and see if problem duplicates or the fault sets. Is the status Active for this DTC? Yes Go To 5 No Go To 3
  3. WIRE HARNESS/CKP SENSOR INSPECTION Turn the ignition off. Disconnect the harness connectors at the PCM and Crank Sensor and inspect for wire chaffing or rub conditions, terminals pushed out on the wiring connector, bent terminals at the PCM and Crank Sensor, water in the connector cavities, presence of corrosion on the terminals of the connectors or components. Visually inspect the mounting area of Crank Sensor for debris/damage or a loose sensor. Remove the Crank Sensor and inspect the end of the sensor for signs of damage or debris. Rotate the engine and if possible, inspect the target wheel for any signs of damage. Reinstall the Crank Sensor and ensure that the sensor is properly installed and torqued to proper specification. NOTE: Due to the fact that this DTC is set by an intermittent loss of the signal, the most likely cause is a poor connection at the Crank Sensor or PCM terminals, or a poor signal between the Crank Sensor and target wheel. Because of this, unplugging and reconnecting the harness connectors, or repositioning the Crank Sensor will often repair the condition that set the DTC. Were any problems found? Yes Perform the appropriate repair. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECK THE VEHICLE'S REPAIR HISTORY Check the history of the vehicle for previous crank sensor related DTCs within the past 90 days. Did the repair history show that the vehicle was in dealership for a crank sensor fault within the past 90 days? Yes Replace the Crank Sensor in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Test complete. Reconnect the harness connectors, and erase the DTC. The most likely cause was a poor connection at one of the harness connectors. Verify the DTC does not return. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the CKP Sensor harness connector. Turn the ignition on. Measure the voltage of the (F855) 5-Volt Supply circuit at the CKP Sensor harness connector. Is the voltage between 4.8 and 5.2 volts? Yes Go To 6 No, voltage is below 4.8 volts: Repair the (F855) 5-Volt Supply circuit for an open or short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No, voltage is above 5.2 volts: Repair the (F855) 5-Volt Supply circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CHECK THE (K24) CKP SIGNAL CIRCUIT VOLTAGE Measure the voltage of the (K24) CKP Signal circuit at the CKP Sensor harness connector. Is the voltage between 4.8 and 5.2 volts? Yes Go To 7 No Go To 9 No Repair the CKP Sensor Signal circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. CHECK THE (K925) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE Turn the ignition off. Disconnect the PCM C2 harness connector. Measure the resistance of the (K925) CKP Sensor Ground circuit between the CKP Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 8 No Repair the (K925) CKP Sensor Ground circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. TONE WHEEL/PULSE RING INSPECTION Turn the ignition off. Disconnect the battery ground cable. Remove the CKP Sensor. Visually inspect the sensor mounting location for damage, foreign material. Rotate the engine and if possible inspect the target wheel for any signs of damage. Were any problems found? Yes Repair Issues in mounting location. Repair or replace the Tone Wheel / Pulse Ring as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Crank Position Sensor in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  9. CHECK THE (K24) CKP SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the PCM C2 harness connector. Measure the resistance between ground and the (K24) CKP Signal circuit at the Crankshaft Position Sensor harness connector. Is the resistance above 10K Ohms? Yes Go To 10 No Repair the (K24) CKP Signal circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  10. CHECK THE (K24) CKP SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE Measure the resistance of the (K24) CKP Signal circuit between the Crankshaft Position Sensor harness connector and the PCM C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 11 No Repair the (K24) CKP Signal circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  11. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Crankshaft Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the CKP Sensor and Powertrain Control Module connectors. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. NOTE: Due to the fact that this DTC is set by an intermittent loss of the signal, the most likely cause is a poor connection at the Crank Sensor or PCM terminals, or a poor signal between the Crank Sensor and target wheel. Because of this, unplugging and reconnecting the harness connectors, or repositioning the Crank Sensor will often repair the condition that set the DTC. Were any problems found? Yes Perform the appropriate repair. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE NOTE: The (1/1) Exhaust Camshaft Position Sensor is mounted to the front face of the cylinder head on the same side as the exhaust camshaft. The (1/2) Intake Camshaft Position Sensor is mounted to the rear face of the cylinder head on the same side as the intake camshaft. Turn the ignition on. With the scan tool select View DTCs. Record the related Freeze Frame data. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: If the DTC does not reset it may be necessary to test drive the vehicle. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CAMSHAFT 1/1 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Inspect the Camshaft 1/1 Position Sensor for conditions such as loose mounting screws, damage, or cracks. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CAMSHAFT 1/1 POSITION SENSOR IRREGULAR SIGNAL Turn the ignition off. Using a lab scope and the (special tool #6801, Terminal Probe), back probe the (K44) CMP 1/1 Signal circuit in the Camshaft 1/1 Position Sensor harness connector. Turn the ignition on. Wiggle the related wire harness and lightly tap on the Camshaft 1/1 Position Sensor while monitoring the lab scope screen. Start the engine. Monitor the Camshaft 1/1 Position Sensor signal on the lab scope screen. Were any Camshaft 1/1 Position Sensor signals irregular or missing? Yes Go To 4 No Go To 6
  4. CAMSHAFT 1/1, TONE WHEEL OR PULSE RING Turn the ignition off. Remove the Camshaft 1/1 Position Sensor. Inspect the Camshaft 1/1 Position Sensor and mounting area for any condition that would result in an incorrect signal, such as damage, foreign material or excessive movement. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CAMSHAFT 1/1 POSITION SENSOR Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Camshaft 1/1 Position Sensor. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CAMSHAFT 1/2 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS Turn the ignition off. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Inspect the Camshaft 1/2 Position Sensor for conditions such as loose mounting screws, damage, or cracks. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CAMSHAFT 1/2 POSITION SENSOR IRREGULAR SIGNAL Using a lab scope and the (special tool #6801, Terminal Probe), back probe the (K441) CMP 1/2 Signal circuit in the Camshaft 1/2 Position Sensor harness connector. Turn the ignition on. Wiggle the related wire harness and lightly tap on the Camshaft 1/2 Position Sensor while monitoring the lab scope screen. Start the engine. Monitor the Camshaft 1/2 Position Sensor signal on the lab scope screen. Were any Camshaft 1/2 Position Sensor signals irregular or missing? Yes Go To 8 No Go To 10
  8. CAMSHAFT 1/2, TONE WHEEL OR FLEX PLATE Turn the ignition off. Remove the Camshaft 1/2 Position Sensor. Inspect the Camshaft 1/2 Position Sensor and mounting area for any condition that would result in an incorrect signal, such as damage, foreign material, or excessive movement. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. CAMSHAFT 1/2 POSITION SENSOR Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Camshaft 1/2 Position Sensor. Refer to «SENSOR, CRANKSHAFT POSITION, REMOVAL»(ref-646230-S23404246602014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  10. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. DTC IS ACTIVE NOTE: The (1/1) Exhaust Camshaft Position Sensor is mounted to the front face of the cylinder head on the same side as the exhaust camshaft. The (1/2) Intake Camshaft Position Sensor is mounted to the rear face of the cylinder head on the same side as the intake camshaft. Ignition on, engine not running. With the scan tool select View DTCs. Record the related Freeze Frame data. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: If the DTC does not reset it may be necessary to test drive the vehicle. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CAMSHAFT 1/2 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Inspect the Camshaft 1/2 Position Sensor for conditions such as loose mounting screws, damage, or cracks. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CAMSHAFT 1/2 POSITION SENSOR IRREGULAR SIGNAL Turn the ignition off. Using a lab scope and the (special tool #6801, Terminal Probe), back probe the (K441) CMP 1/2 Signal circuit in the Camshaft 1/2 Position Sensor harness connector. Ignition on, engine not running. Wiggle the related wire harness and lightly tap on the Camshaft 1/2 Position Sensor while monitoring the lab scope screen. Start the engine. Monitor the Camshaft 1/2 Position Sensor signal on the lab scope screen. Were any Camshaft 1/2 Position Sensor signals irregular or missing? Yes Go To 4 No Go To 6
  4. CAMSHAFT 1/2, TONE WHEEL OR PULSE RING Turn the ignition off. Remove the Camshaft 1/2 Position Sensor. Inspect the Camshaft 1/2 Position Sensor and mounting area for any condition that would result in an incorrect signal, such as damage, foreign material or excessive movement. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. CAMSHAFT 1/2 POSITION SENSOR Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Camshaft 1/2 Position Sensor. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. CAMSHAFT 1/1 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS Turn the ignition off. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Inspect the Camshaft 1/1 Position Sensor for conditions such as loose mounting screws, damage, or cracks. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CAMSHAFT 1/1 POSITION SENSOR IRREGULAR SIGNAL Using a lab scope and the (special tool #6801, Terminal Probe), back probe the (K44) CMP 1/1 Signal circuit in the Camshaft 1/1 Position Sensor harness connector. Ignition on, engine not running. Wiggle the related wire harness and lightly tap on the Camshaft 1/1 Position Sensor while monitoring the lab scope screen. Start the engine. Monitor the Camshaft 1/1 Position Sensor signal on the lab scope screen. Were any Camshaft 1/1 Position Sensor signals irregular or missing? Yes Go To 8 No Go To 10
  8. CAMSHAFT 1/1, TONE WHEEL OR FLEX PLATE Turn the ignition off. Remove the Camshaft 1/1 Position Sensor. Inspect the Camshaft 1/1 Position Sensor and mounting area for any condition that would result in an incorrect signal, such as damage, foreign material, or excessive movement. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 9
  9. CAMSHAFT 1/1 POSITION SENSOR Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the Camshaft 1/1 Position Sensor. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  10. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC NOTE: Diagnose and repair any O2 Sensor DTCs before continuing with this test. NOTE: A new downstream O2 Sensor along with an aging upstream O2 Sensor may cause the DTC to set. Review the vehicle repair history before continuing. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set. NOTE: Attempt to operate the vehicle under conditions similar to which the DTC was set. Refer to Freeze Frame information. Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With a scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. CATALYTIC CONVERTER Thoroughly inspect the catalytic converter for any of the following conditions: Damage, dents, or holes Severe discoloration caused by overheating Internal damage Were any problems found? Yes Replace the Catalytic Converter. Repair the condition that may have caused the failure. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. CHECKING THE EXHAUST SYSTEM FOR LEAKS Perform the diagnostic procedure for CHECKING THE EXHAUST SYSTEM FOR LEAKS. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. CHECKING THE OXYGEN SENSOR OPERATION Perform the diagnostic procedure for CHECKING THE OXYGEN SENSOR OPERATION. Refer to «DIAGNOSIS AND TESTING»(ref-646310-S28395383142014072800000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. ENGINE MECHANICAL CONDITION NOTE: Check for signs of contamination that may have damaged the O2 Sensor(s) and Catalytic Converter, such as: contaminated fuel, unapproved silicone, evidence of oil, coolant or anti-seize compound. Repair as necessary. Check the exhaust for excessive smoke caused by an internal engine problem. Were any problems found? Yes Repair the engine mechanical condition in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. UPSTREAM O2 SENSOR A new downstream O2 Sensor along with an aging Upstream O2 Sensor may cause this DTC to set. Review the vehicle repair history. Has the downstream O2 Sensor been replaced without replacing the upstream O2 Sensor? Yes Replace the Upstream O2 Sensor as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. CATALYTIC CONVERTER If there are no possible causes remaining, view repair. Repair Replace the Catalytic Converter. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION Turn the ignition on. Using the scan tool, read DTCs. Record the related Freeze Frame data if any DTCs are present. Check the following items which may assist in repairing the customer's complaint successfully: Check the vehicle's repair history. If the vehicle has a repair history that pertains to the customer's current complaint, review the repair. Inspect the vehicle for any aftermarket accessories that may have been installed incorrectly. Check for any service bulletin(s) related to the customer's complaint or DTCs. If a service bulletin applies, follow the instructions of the service bulletin. Choose the following scenario that best applies: The vehicle inspection or service bulletin repaired the customer's complaint. Testing complete. A DTC is present, the vehicle inspection revealed no concerns, no service bulletins apply, or the service bulletin did not repair the customer's complaint. Go To 2
  2. ACTIVE DTC NOTE: If P0443 is set along with this DTC, perform the diagnostic procedure for P0443 before continuing with this test. NOTE: If the customer is experiencing an early fuel shut off during the fuel filling process along with P0440, P0441 and P0452 setting, you need to check for restrictions in the Evaporative Purge tubes/hoses as well as the Fresh Air Filter before continuing. Start the engine. Allow the engine to idle. Using the scan tool, perform the ESIM FORCED MONITOR TEST. Allow the test to run until complete. Using the scan tool, read DTCs. Is the DTC Active or Pending at this time? Yes Go To 3 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  3. CHECK THE FUEL TANK PRESSURE (FTP) SENSOR (N8) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN/HIGH RESISTANCE NOTE: Diagnose and repair any system voltage or sensor supply voltage DTC's before continuing with this test. Turn the ignition off. Disconnect the FTP Sensor harness connector. Ignition on, engine not running. Measure the voltage on the FTP Sensor (N8) 5-Volt Supply circuit at the FTP Sensor harness connector. Is the voltage between 4.8 to 5.2 volts? Yes Go To 4 No Repair the Fuel Tank Pressure Sensor (N8) 5-Volt Supply circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. FUEL TANK PRESSURE (FTP) SENSOR Turn the ignition off. Reconnect the FTP Sensor harness connector. Remove the fuel filler cap. Ignition on, engine not running. With a voltmeter, back-probe the FTP Sensor Signal circuit at the FTP Sensor harness connector. Is the voltage between 2.3 to 2.7 volts? Yes Go To 5 No Verify that there is good pin to terminal contact in the Fuel Tank Pressure Sensor and Powertrain Control Module connectors. Replace the FTP Sensor if no problems were found with the connectors. Refer to «SENSOR, FUEL TANK PRESSURE, REMOVAL»(ref-646289-S02201591692014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. EVAP SYSTEM INSPECTION Visually and physically Inspect the entire Evaporative Emission System for any of the following conditions: Holes or cracks Loose seal points Damaged or missing components Incorrect routing of hoses and tubes Loose or missing Fuel Filler Cap or seal Improper installation of the Fuel Cap Damaged locking tabs on the Fuel Filler Cap and/or filler tube Damaged seal points on the Fuel Filler Cap and/or filler tube Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 6
  6. INSUFFICIENT VACUUM SUPPLY TO THE EVAP PURGE SOLENOID Turn the ignition off. Inspect the Evap Purge Solenoid vacuum supply hose for proper routing and installation. Check the vacuum supply hose between the throttle body or intake manifold and the Evap Purge Solenoid for any obstructions or blockage. Check the vacuum port at the throttle body or intake manifold for any obstructions or blockage. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 7
  7. EVAP PURGE HOSE/TUBE OBSTRUCTION Inspect the EVAP Purge hose/tube for proper routing and installation between the EVAP Purge Solenoid and the Fuel Tank and between the Fuel Tank and the EVAP Purge Canister. Make sure the hose/tube is not damaged or kinked and is free from any obstructions or blockage. Were any problems found? Yes Repair or replace as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 8
  8. EVAP PURGE SOLENOID WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources away from the test area to prevent the ignition of explosive gases. Keep the test area well ventilated. Failure to do so may result in possible serious or fatal injury. NOTE: After disconnecting the EVAP Purge Solenoid vacuum connections, inspect the lines and solenoid for signs of contamination. Disconnect the vacuum hoses at the EVAP Purge Solenoid. Using a hand vacuum pump, apply 5 in. Hg. to the "ENGINE" side of the Evap Purge Solenoid. Turn the ignition on. Using the scan tool, actuate the Evap Purge Solenoid to the ON position. NOTE: The vacuum should drop when the solenoid is actuated. Does the solenoid function as described above? Yes Go To 9 No Verify that there is good pin to terminal contact in the Solenoid and PCM harness connectors. Replace the EVAP Purge Solenoid if no problems were found in the connectors. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the EVAP Purge Solenoid, ESIM Switch and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION Turn the ignition on. Using the scan tool, read DTCs. Record the related Freeze Frame data if any DTCs are present. Check the following items which may assist in repairing the customer's complaint successfully: Check the vehicle's repair history. If the vehicle has a repair history that pertains to the customer's current complaint, review the repair. Inspect the vehicle for any aftermarket accessories that may have been installed incorrectly. Check for any service bulletin(s) related to the customer's complaint or DTCs. If a service bulletin applies, follow the instructions of the service bulletin. Choose the following scenario that best applies: The vehicle inspection or service bulletin repaired the customer's complaint. Testing complete. A DTC is present, the vehicle inspection revealed no concerns, no service bulletins apply, or the service bulletin did not repair the customer's complaint. Go To 2
  2. ACTIVE DTC NOTE: Since a hot vehicle can conceal a leak, it is best to perform this test at room temperature. NOTE: A loose gas cap could have caused this DTC to set. Make sure gas cap is tight and in good condition. Make sure the gas cap meets OEM specifications. Start the engine. Allow the engine to idle. Using the scan tool, perform the ESIM FORCED MONITOR TEST. Allow the test to run until complete. Using the scan tool, read DTCs. Is the DTC Active or Pending at this time? Yes Go To 3 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  3. EVAP SYSTEM INSPECTION Visually and physically Inspect the entire Evaporative Emission System for any of the following conditions: Holes or cracks Loose seal points Damaged or missing components Incorrect routing of hoses and tubes Loose or missing Fuel Filler Cap or seal Improper installation of the Fuel Cap Damaged locking tabs on the Fuel Filler Cap and/or filler tube Damaged seal points on the Fuel Filler Cap and/or filler tube Fuel cap gasket seal Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 4
  4. VERIFY EVAPORATIVE EMISSION LEAK WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources away from the test area to prevent the ignition of explosive gases. Keep the test area well ventilated. Failure to do so may result in possible serious or fatal injury. Turn the ignition off. To continue testing, you will need Evaporative Emission Leak Detector (EELD) (special tool #8404C, Kit, EELD And Accessory). NOTE: The fuel tank should have between 20% and 80% of fuel tank capacity to properly test the EVAP system. Connect the red power lead of EELD to the battery positive terminal and the black ground lead to battery negative terminal. Block the vent hose of the EVAP Canister. Connect shop air to the EELD. Set the smoke/air control switch to AIR. Insert the tester's AIR supply tip (clear hose) into the 0.040 orifice on the tester's control panel. Press the remote smoke/air start button. Position the red flag on the air flow meter so it is aligned with the indicator ball. When the calibration is complete, release the remote button. The EELD flow meter is now calibrated in liters per minute. Install the service port adapter (special tool #8404-14, Adapter, Evaporative Service Port) on the vehicle's service port (if equipped) or install the service adapter (special tool #8404-ADP, Smoke Machine Adapters) into the filter line. Connect the AIR supply hose from the EELD to the service port (if equipped) or to the adapter (special tool #8404-ADP, Smoke Machine Adapters). Press the remote button to activate AIR flow. NOTE: Larger volume fuel tanks, lower fuel levels, or vehicles equipped with a Flow Management Valve may indicate high flow and will require four to five minutes to fill. Compare the flow meter indicator ball reading to the red flag. ABOVE the red flag indicates a leak present. BELOW the red flag indicates a sealed system. Is the indicator ball above the red flag? Yes Go To 5 No Refer to the Freeze Frame data recorded in step 1 . If the data indicates that the vehicle was in motion when the DTC was set, verify that all hoses are properly connected Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  5. EVAPORATIVE EMISSION LEAK DETECTION NOTE: A thorough visual inspection of the EVAP system hoses, tubes, and connections may save time in your diagnosis. Look for any physical damage or signs of wetness at connections. The strong smell of fuel vapors may aid diagnosis also. Remove the Air supply hose from the service port or the adapter (special tool #8404-ADP, Smoke Machine Adapters). Connect the SMOKE supply tip (black hose) to the service port (if equipped) or to the adapter (special tool #8404-ADP, Smoke Machine Adapters). Set the smoke/air control switch to SMOKE. NOTE: The flow meter indicator ball will not move at this point. Press the remote smoke/air start button. NOTE: Make sure that smoke has filled the EVAP System by continuing to press the remote smoke/air start button, remove the vehicle fuel cap, and wait for the smoke to exit. Once smoke is indicated reinstall the fuel cap. NOTE: For optimal performance, introduce smoke into the system for an additional 60 seconds; continue introducing smoke at 15 second intervals, as necessary. While still holding the remote smoke/air start button, use the white light (special tool #8404-CLL, Light, White) to follow the EVAP system path, and look for the source of the leak indicated by exiting smoke. If a leak is concealed from view (i.e., top of fuel tank), release the remote smoke/air start button, and use the ultraviolet (UV) black light (special tool #8404-UVL, Light, UV) and the yellow goggles (special tool #8404-20, Goggles, Yellow) to look for residual traces of dye that are left behind by the smoke. The exiting smoke deposits a residual fluid that is either bright green or bright yellow in color when viewed with a UV light. NOTE: The EVAP System is divided into three zones. A leak from any of these zones can cause this DTC to set. The lists below specify the possible leak points in that specific zone. For further assistance see the Zone Identification Charts below. ZONE 1 EVAP SYSTEM COMPONENTS CALLOUT DESCRIPTION 1 Fuel Tank 2 Fuel Tank Vent (Check Valve) 3 Vapor Line to Canister 4 Fuel Tank to Canister Vapor Line 5 Control Valve 6 Fuel tank Pressure Sensor 7 Vapor Recirculation Line 8 Fuel Cap 9 Fuel Fill Tube 10 Fuel Fill Tube to Tank connector 11 Fuel Fill Check Valve ZONE 2 EVAP SYSTEM COMPONENTS CALLOUT DESCRIPTION 1 ESIM switch 2 Filter 3 Evaporative Purge connection 4 Fuel Tank to Canister Vapor Line 5 Evaporative Canister 6 ESIM Switch O-Ring Seal ZONE 3 EVAP SYSTEM COMPONENTS CALLOUT DESCRIPTION 1 Connection to Canister 2 Chassis Purge Line 3 Connection to Evaporative Purge Harness 4 Chassis Evaporative Purge to Engine Vacuum line and connection 5 Evaporative Purge Valve 6 Evaporative Purge Vacuum Line 7 Connection to Chassis Line NOTE: Carefully inspect the vent side of the Evaporative Canister. Due to the filtering system in the canister the smoke or dye may or may not be visible. Introducing smoke into the filtered side of the canister may assist in locating the leak. Select the appropriate response from the list below: A leak was found at the gas cap or fuel filler tube Go To 6 A leak was found in one or more of the EVAP System zones If the leak is at a hose connection, remove the hose then reconnect the hose and check for a leak again. All other leaks repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No leaks were detected Go To 7
  6. LEAK AT FUEL FILLER CAP Remove the SMOKE supply tip (black hose) from the service port (if equipped) or to the (special tool #8404-ADP, Smoke Machine Adapters) adapter. Install Leak Check Adapter (special tool #8382, Adapter, Leak Check) (1/4 turn cap) or Fuel Tank Adapter (special tool #6922, Adapter, Fuel Tank) (screw on cap) and Leak Check Adapter (special tool #8399, Adapter, Leak Check) (secondary seal depressor) and repeat step 10. NOTE: The gas cap adapter is being used as a known good cap. Was a leak found at the gas cap adapter? Yes Replace the Fuel Filler tube assembly. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace the gas cap. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  7. EVAP PURGE SOLENOID WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources away from the test area to prevent the ignition of explosive gases. Keep the test area well ventilated. Failure to do so may result in possible serious or fatal injury. NOTE: After disconnecting the EVAP Purge Solenoid vacuum connections, inspect the lines and solenoid for signs of contamination. Disconnect the vacuum hoses at the EVAP Purge Solenoid. Using a hand vacuum pump, apply 1.0 in. Hg. to the "ENGINE" side of the Evap Purge Solenoid. NOTE: The solenoid should hold vacuum for a minimum of 15 seconds. Turn the ignition on, engine not running. Using the scan tool, actuate the EVAP Purge Solenoid to the ON position. NOTE: The vacuum should drop when the solenoid is actuated. Does the solenoid function as described above? Yes Go To 8 No Verify that there is good pin to terminal contact in the Solenoid and PCM harness connectors. Replace the EVAP Purge Solenoid if no problems were found in the connectors. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  8. EVAPORATIVE SYSTEM INTEGRITY MONITOR SWITCH Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the ESIM switch and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Verify that there is good pin to terminal contact in the Switch and the Powertrain Control Module connectors. Replace the ESIM switch Assembly if no problems were found with the connectors. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION Turn the ignition on. Using the scan tool, read DTCs. Record the related Freeze Frame data if any DTCs are present. Check the following items which may assist in repairing the customer's complaint successfully: Check the vehicle's repair history. If the vehicle has a repair history that pertains to the customer's current complaint, review the repair. Inspect the vehicle for any aftermarket accessories that may have been installed incorrectly. Check for any service bulletin(s) related to the customer's complaint or DTCs. If a service bulletin applies, follow the instructions of the service bulletin. Choose the following scenario that best applies: The vehicle inspection or service bulletin repaired the customer's complaint. Testing complete. A DTC is present, the vehicle inspection revealed no concerns, no service bulletins apply, or the service bulletin did not repair the customer's complaint. Go To 2
  2. EVAP SYSTEM INSPECTION NOTE: Because a hot vehicle can conceal a potential leak, allow the vehicle to reach ambient temperature before continuing with this procedure. Visually and physically Inspect the entire Evaporative Emission System for any of the following conditions: Holes or cracks Loose seal points Damaged or missing components Incorrect routing of hoses and tubes Loose or missing Fuel Filler Cap (if applicable) or seal Damaged locking tabs on the Fuel Filler Cap (if applicable) and/or filler tube Damaged seal points on the Fuel Filler Cap (if applicable) and/or filler tube Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. VERIFY EVAPORATIVE EMISSION LEAK WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources away from the test area to prevent the ignition of explosive gases. Keep the test area well ventilated. Failure to do so may result in possible serious or fatal injury. To continue testing, you will need the (special tool #8404C, Kit, EELD And Accessory). NOTE: The fuel tank should have between 20% and 80% of fuel tank capacity to properly test the EVAP system. Connect the red power lead of EELD to the battery positive terminal and the black ground lead to battery negative terminal. Connect shop air to the EELD. Set the smoke/air control switch to AIR. Insert the tester's AIR supply tip (clear hose) into the 0.040 orifice on the tester's control panel. Press the remote smoke/air start button. Position the red flag on the air flow meter so it is aligned with the indicator ball. When the calibration is complete, release the remote button. The EELD flow meter is now calibrated in liters per minute. Remove the Vent Filter and install the service adapter (special tool #8404-ADP, Smoke Machine Adapters) into the vent line. Connect the AIR supply hose from the EELD to the adapter. Press the remote button to activate AIR flow. NOTE: Larger volume fuel tanks, lower fuel levels, or vehicles equipped with a Flow Management Valve may indicate high flow and will require four to five minutes to fill. Compare the flow meter indicator ball reading to the red flag. ABOVE the red flag indicates a leak present. BELOW the red flag indicates a sealed system. Is the indicator ball above the red flag? Yes Go To 4 No The leak is not present at this time. Review the Freeze Frame data recorded in step 1. If the data indicates that the vehicle was in motion when the DTC was set, verify that all hoses are properly connected. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  4. EVAPORATIVE EMISSION LEAK DETECTION NOTE: A thorough visual inspection of the EVAP system hoses, tubes, and connections may save time in your diagnosis. Look for any physical damage or signs of wetness at connections. The strong smell of fuel vapors may aid diagnosis also. Remove the Air supply hose from the adapter. Connect the SMOKE supply tip (black hose) to the adapter. Set the smoke/air control switch to SMOKE. NOTE: The flow meter indicator ball will not move at this point. Press and hold the remote smoke/air start button to allow the system to fill with smoke. NOTE: If the vehicle is equipped with a fuel filler cap, remove the vehicles cap, and wait for the smoke to exit. Once smoke is indicated reinstall the fuel filler cap. NOTE: For optimal performance, continue introducing smoke at 15 second intervals, as necessary. While still holding the remote smoke/air start button, use the white light (special tool #8404-CLL, Light, White) to follow the Evap system path, and look for the source of the leak indicated by exiting smoke. If a leak is concealed from view (i.e., top of fuel tank), release the remote smoke/air start button, and use the ultraviolet (UV) black light (special tool #8404-UVL, Light, UV) and the yellow goggles (special tool #8404-20, Goggles, Yellow) to look for residual traces of dye that are left behind by the smoke. The exiting smoke deposits a residual fluid that is either bright green or bright yellow in color when viewed with a UV light. NOTE: The Evap System is divided into three zones. A leak from any of these zones can cause this DTC to set. The lists below specify the possible leak points in that specific zone. For further assistance see the Zone Identification Charts below. ZONE 1 EVAP SYSTEM COMPONENTS CALLOUT DESCRIPTION 1 Fuel Tank 2 Fuel Tank Vent (Check Valve) 3 Vapor Line to Canister 4 Fuel Tank to Canister Vapor Line 5 Control Valve 6 Fuel tank Pressure Sensor 7 Vapor Recirculation Line 8 Fuel Cap (if applicable) 9 Fuel Fill Tube (System may be equipped with either a Fuel Cap or the Capless Fuel Filler system, depending on the vehicles application) 10 Fuel Fill Tube to Tank connector 11 Fuel Fill Check Valve ZONE 2 EVAP SYSTEM COMPONENTS CALLOUT DESCRIPTION 1 ESIM Switch 2 Filter 3 Evaporative Purge connection 4 Fuel Tank to Canister Vapor Line 5 Evaporative Canister 6 ESIM Switch O-Ring Seal ZONE 3 EVAP SYSTEM COMPONENTS CALLOUT DESCRIPTION 1 Connection to Canister 2 Chassis Purge Line 3 Connection to Evaporative Purge Harness 4 Chassis Evaporative Purge to Engine Vacuum line and connection 5 Evaporative Purge Valve 6 Evaporative Purge Vacuum Line 7 Connection to Chassis Line NOTE: Carefully inspect the vent side of the Evap Canister. Due to the filtering system in the canister the smoke or dye may or may not be visible. Introducing smoke into the filtered side of the canister may assist in locating the leak. Select the appropriate response from the list below: A leak was found at the Fuel Cap (if applicable) or Fuel Filler Tube Assembly Perform the appropriate repair by replacing the Fuel Filler Tube Assembly and/or the Fuel Cap (if applicable). Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . A leak was found in one or more of the Evap System zones If the leak is at a hose connection, remove the hose then reconnect the hose and check for a leak again. All other leaks, repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No leaks were detected Go To 5
  5. EVAP PURGE SOLENOID NOTE: After disconnecting the Evap Purge Solenoid vacuum connections, inspect the lines and solenoid for signs of contamination. Disconnect the vacuum hoses at the Evap Purge Solenoid. Using a hand vacuum pump, apply 5.0 in. Hg. to the "ENGINE" side of the Evap Purge Solenoid. NOTE: The solenoid should hold vacuum for a minimum of 15 seconds. Turn the ignition on. Using the scan tool, actuate the Evap Purge Solenoid to the ON position. NOTE: The vacuum should drop when the solenoid is actuated. Does the solenoid function as described above? Yes Go To 6 No Verify that there is good pin to terminal contact in the Solenoid and PCM harness connectors. Replace the Evap Purge Solenoid in accordance with the service information if no problems were found in the connectors. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  6. ESIM SWITCH Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the ESIM Switch and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Verify that there is good pin to terminal contact in the ESIM Switch and PCM harness connectors. Replace the ESIM Switch in accordance with the service information if no problems were found in the connectors. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  1. ACTIVE DTC NOTE: If DTC P0455-EVAP SYSTEM LARGE LEAK is set along with this DTC, perform the DTC P0455 diagnostic procedure before continuing with this test. Start the engine. Allow the engine to idle. Using the scan tool, perform the ESIM FORCED MONITOR TEST. Allow the test to complete. Using the scan tool, read DTCs. Is the DTC Active or Pending at this time? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. FUEL FILLER CAP VISUAL INSPECTION Remove the Fuel Filler Cap and visually inspect for the following: Loose or missing Fuel Filler Cap or seal. Damaged locking tabs on the Fuel Filler Cap and/or filler tube. Damaged seal points on the Fuel Filler Cap and/or filler tube. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 3
  3. FUEL FILLER CAP Reinstall the Fuel Filler Cap. Start the engine. Allow the engine to idle. Using the scan tool, perform the ESIM FORCED MONITOR TEST. Allow the test to complete. Using the scan tool, read DTCs. Is the DTC Active or Pending at this time? Yes Replace the Fuel Filler Cap in accordance with the service information. Perform the PCM VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  1. ACTIVE DTC NOTE: Diagnose and repair any Can bus, communication or implausible signal DTCs or Fuel Level DTCs in the BCM before proceeding with this test. NOTE: Diagnose P0462 or P0463 first, if set along with P0461. Start the engine. Allow the engine to reach normal operating temperature. With the scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active or Pending at this time? Yes Go To 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-646316-S20980633052014072800000) .
  2. VISUALLY INSPECT FUEL TANK Visually inspect the Fuel Tank for damage that may restrict the Fuel Sending Unit float from moving. Is the Fuel Tank OK? Yes Go To 3 No Replace the Fuel Tank as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .
  3. FUEL LEVEL SENSOR CIRCUIT DTCS SET IN THE BCM Are any Fuel Level Sensor Circuit DTCs set in the BCM? Yes Diagnose the appropriate Fuel Level Sensor Circuit DTC in the BCM. Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) . No Go To 4
  4. INTERNAL INSPECTION OF THE FUEL TANK WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Remove the Fuel Tank in accordance with the Service Information. Refer to «TANK, FUEL, REMOVAL»(ref-646230-S36443084612014072800000) . Remove the Fuel Pump Module. Refer to «MODULE, FUEL PUMP, REMOVAL»(ref-646230-S37822522552014072800000) . Visually inspect the inside of the Fuel Tank for any obstructions or deformities. Inspect the Fuel Pump Module Float arm for damage. Were any problems found? Yes Repair or replace as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Go To 5
  5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Body Control Module (BCM) and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Sensor and Powertrain Control Module harness connectors. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-646316-S05480343242014072800000) .

More articles — 2.0L - Dtcs B104D to P0461