Dtcs P0141 to P0335: Other Dodge Durango III

WHEN MONITORED

Continuously during O2 sensor heater operation with battery voltage between 10.4 and 15.75 Volts and no O2 sensor circuit DTCs present.

SET CONDITION

The Powertrain Control Module (PCM) detects no temperature change in the O2 sensor heater element when the heater circuit is active. The heater temperature is obtained by measuring the heater resistance and calculating the heater temperature. Two trip fault. Three good trips to turn off the MIL.

POSSIBLE CAUSES

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 102

Scheme 103

1. O2 SENSOR HEATER OPERATION Turn the ignition off. NOTE: Wait a minimum of eight minutes to allow the O2 Sensor to cool down before continuing the test. Allow the O2 Sensor voltage to stabilize between 4.6 and 5.0 Volts. Ignition on, engine not running. With the scan tool, actuate the 1/2 O2 Heater Test. Using the scan tool, monitor 1/2 O2 Sensor voltage for at least two minutes. Does the voltage stay above 4.5 Volts? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. O2 SENSOR HEATER ELEMENT Turn the ignition off. NOTE: Allow the O2 sensor to cool down to room temperature. Disconnect the O2 Sensor harness connector. Measure the resistance of the O2 Heater Element across the O2 Sensor connector between the O2 Heater Control terminal and the Heater ground terminal. NOTE: O2 Heater Element resistance values should be measured at 21.1° C (70° F). The resistance value will vary with different temperature values. Is the resistance of the O2 Sensor Heater Element between 2.0 and 30.0 Ohms? Yes Go To 3 . No Verify that there is good pin to terminal contact in the 1/2 O2 Sensor and Powertrain Control Module connectors. If OK, replace the 1/2 O2 Sensor. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-465971-S04878935642012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
3. (K299) O2 1/2 HEATER CONTROL CIRCUIT OPEN Disconnect the C3 PCM 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K299) O2 1/2 Heater Control circuit from the O2 harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 0.5 of an Ohm? Yes Go To 4 . No Repair the excessive resistance in the (K299) O2 1/2 Heater Control circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
4. (Z903) O2 1/2 HEATER GROUND CIRCUIT OPEN Measure the resistance between ground and the (Z903) O2 1/2 Heater ground circuit in the O2 Sensor harness connector. Is the resistance below 0.5 of an Ohm? Yes Go To 5 . No Repair the excessive resistance in the (Z903) O2 1/2 Heater ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
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. Verify that there is good pin to terminal contact in the O2 Sensor and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

Scheme 104

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Engine running for less than 30 seconds and the O2 Sensor Heater Temperature is less than 251° C (484° F) with battery voltage greater 10.99 Volts.

The Powertrain Control Module (PCM) detects that the 2/1 Oxygen Sensor signal voltage is below the minimum acceptable value. The DTC will set as Pending after one trip and Active after two trips. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 105

Scheme 106

Scheme 107

Scheme 108

Scheme 109

1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) Turn the ignition on. With the scan tool, read DTCs. Record DTC and Freeze Frame information. Start the engine and allow it to idle for at least 60 seconds. 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, read the active DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. (K43) O2 2/1 SIGNAL CIRCUIT Turn the ignition off. Disconnect the 2/1 O2 Sensor harness connector. Ignition on, engine not running. With the scan tool, monitor the 2/1 O2 Sensor voltage. Is the O2 Sensor voltage between 4.1 and 5.0 Volts? Yes Go To 3 . No Go To 5 .
3. O2 SENSOR Measure the voltage on the (K902) O2 Return Upstream circuit in the O2 Sensor harness connector. Is the voltage at 2.5 Volts? Yes Verify that there is good pin to terminal contact in the 2/1 Oxygen Sensor and Powertrain Control Module connectors. If OK, replace the 2/1 O2 Sensor. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-465971-S04878935642012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (K902) O2 RETURN UPSTREAM CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C1 PCM harness connector. Measure the resistance between ground and the (K902) O2 Return Upstream circuit in the O2 Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K902) O2 Return Upstream circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
5. (K43) O2 2/1 SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C1 and C2 PCM harness connectors. Measure the resistance between ground and the (K43) O2 2/1 Signal circuit in the O2 Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K43) O2 2/1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 6 .
6. (K43) O2 2/1 SIGNAL CIRCUIT SHORTED TO THE (K902) O2 RETURN UPSTREAM CIRCUIT Measure the resistance between the (K43) O2 2/1 Signal circuit and the (K902) O2 Return Upstream circuit in the O2 Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K902) O2 Return Upstream circuit and the (K43) O2 2/1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 7 .
7. (K43) O2 2/1 SIGNAL CIRCUIT SHORTED TO THE (Z903) HEATER GROUND CIRCUIT Measure the resistance between the (K43) O2 2/1 Signal circuit and the (Z903) O2 Heater ground circuit in the O2 Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (Z903) O2 Heater ground circuit and the (K43) O2 2/1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 2/1 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. Verify that there is good pin to terminal contact in the 2/1 O2 Sensor and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

Continuously with the engine running, no O2 sensor heater DTCs present, 2/1 Oxygen Sensor heater temperature within a specific range and battery voltage greater than 10.4 Volts.

The Powertrain Control Module (PCM) detects that the 2/1 Oxygen Sensor voltage is greater than the maximum acceptable value for a specific amount of time, based on O2 sensor heater temperature. The DTC will set as Pending after one trip and Active after two trips. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 110

Scheme 111

Scheme 112

Scheme 113

Scheme 114

1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) NOTE: If an O2 sensor signal circuit is shorted to voltage, all O2 sensor voltage readings displayed on the scan tool will be approximately 5.0 Volts. Diagnose the sensor that set the most current DTC. Start the engine and allow it to idle for at least 60 seconds. 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, read the active DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. (K43) O2 2/1 SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C1 and C2 PCM harness connectors. Disconnect the 2/1 O2 Sensor harness connector. Turn the ignition on. Measure the voltage on the (K43) O2 Sensor 2/1 Signal circuit in the 2/1 O2 Sensor harness connector. NOTE: Measure the voltage in reference to ground, not the (K902) O2 Return Upstream circuit. Is there any voltage present? Yes Repair the short to voltage in the (K43) O2 Sensor 2/1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 3 .
3. (K902) O2 RETURN UPSTREAM CIRCUIT SHORTED TO VOLTAGE Measure the voltage on the (K902) O2 Return Upstream circuit in the 2/1 O2 Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K902) O2 Return Upstream circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. O2 SENSOR Turn the ignition off. Connect the C1 and C2 PCM harness connectors. Ignition on, engine not running. With the scan tool, monitor the 2/1 O2 Sensor voltage. Connect a jumper wire between the (K43) O2 2/1 Signal circuit and the (K902) O2 Return Upstream circuit in the O2 Sensor harness connector. Is the voltage between 2.3 and 2.7 Volts with the jumper wire in place? Yes Verify that there is good pin to terminal contact in the 2/1 Oxygen Sensor and Powertrain Control Module connectors. If OK, replace the 2/1 O2 Sensor. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-465971-S04878935642012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 5 . NOTE: Remove the jumper wire before continuing.
5. (K43) O2 2/1 SIGNAL CIRCUIT OPEN Turn the ignition off. Disconnect the C1 and C2 PCM harness connectors. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K43) O2 2/1 Signal circuit from the 2/1 O2 Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K43) O2 2/1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. (K902) O2 RETURN UPSTREAM CIRCUIT OPEN Measure the resistance of the (K902) O2 Return Upstream circuit from the O2 Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 7 . No Repair the open in the (K902) O2 Return Upstream circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the 2/1 Oxygen 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 2/1 O2 Sensor and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With the ECT above 70 °C (158 °F), engine RPM between 1400 and 2300, vehicle speed between 64 and 96 kph (40 and 60 mph) and engine run time greater than three minutes.

The Powertrain Control Module (PCM) detects that the oxygen sensor signal does not switch adequately during monitoring. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Engine running and heater duty cycle greater than 0%. Battery voltage greater than 11.0 Volts.

No sensor output is received when the Powertrain Control Module (PCM) powers up the sensor heater. Two trip fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 115

Scheme 116

1. O2 SENSOR HEATER OPERATION Turn the ignition off. NOTE: Wait a minimum of eight minutes to allow the O2 Sensor to cool down before continuing the test. Allow the O2 Sensor voltage to stabilize between 4.6 and 5.0 Volts. Ignition on, engine not running. With the scan tool, actuate the O2 Heater Test. Using the scan tool, monitor 2/1 O2 Sensor voltage for at least two minutes. Does the voltage stay above 4.5 Volts? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. O2 SENSOR HEATER ELEMENT Turn the ignition off. NOTE: Allow the O2 sensor to cool down to room temperature. Disconnect the 2/1 O2 Sensor harness connector. Measure the resistance of the O2 Heater Element across the O2 Sensor connector between the O2 Heater Control terminal and the O2 Heater ground terminal. NOTE: O2 Heater Element resistance values should be measured at 21.1° C (70° F). The resistance value will vary with different temperature values. Is the resistance of the O2 Sensor Heater Element between 2.0 and 30.0 Ohms? Yes Go To 3 . No Verify that there is good pin to terminal contact in the 2/1 Oxygen Sensor and Powertrain Control Module connectors. If OK, replace the 2/1 O2 Sensor. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-465971-S04878935642012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
3. (K199) O2 2/1 HEATER CONTROL CIRCUIT OPEN Disconnect the C2 PCM 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K199) O2 2/1 Heater Control circuit from the O2 harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 0.5 of an Ohm? Yes Go To 4 . No Repair the excessive resistance in the (K199) O2 2/1 Heater Control circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
4. (Z903) O2 SENSOR HEATER GROUND CIRCUIT OPEN Measure the resistance between ground and the (Z903) O2 Heater ground circuit in the O2 Sensor harness connector. Is the resistance below 0.5 of an Ohm? Yes Go To 5 . No Repair the excessive resistance in the (Z903) O2 Heater ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 2/1 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. Verify that there is good pin to terminal contact in the Oxygen Sensor and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

Engine running for less than 30 seconds and the O2 Sensor Heater Temperature is less than 251° C (484° F) with battery voltage greater 10.99 Volts.

The Powertrain Control Module (PCM) detects that the 2/2 Oxygen Sensor signal voltage is below the minimum acceptable value. The DTC will set as Pending after one trip and Active after two trips. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Continuously with the engine running, no O2 sensor heater DTCs present, 2/2 Oxygen Sensor heater temperature within a specific range and battery voltage greater than 10.4 Volts.

The Powertrain Control Module (PCM) detects that the 2/2 Oxygen Sensor voltage is greater than the maximum acceptable value for a specific amount of time, based on O2 sensor heater temperature. The DTC will set as Pending after one trip and Active after two trips. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 117

1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) NOTE: If an O2 sensor signal circuit is shorted to voltage, all O2 sensor voltage readings displayed on the scan tool will be approximately 5.0 Volts. Diagnose the sensor that set the most current DTC. Start the engine and allow it to idle for at least 60 seconds. 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 DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. (K243) O2 2/2 SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C1 and C2 PCM harness connectors. Disconnect the 2/2 O2 Sensor harness connector. Turn the ignition on. Measure the voltage on the (K243) O2 Sensor 2/2 Signal circuit in the O2 Sensor harness connector. NOTE: Measure the voltage in reference to ground, not the (K904) O2 Return Downstream circuit. Is there any voltage present? Yes Repair the short to voltage in the (K243) O2 Sensor 2/2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 3 .
3. (K904) O2 RETURN DOWNSTREAM CIRCUIT SHORTED TO VOLTAGE Measure the voltage on the (K904) O2 Return Downstream circuit in the 2/2 O2 Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K904) O2 Return Downstream circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. O2 SENSOR Turn the ignition off. Connect the C1 and C2 PCM harness connectors. Ignition on, engine not running. With the scan tool, monitor the 2/2 O2 Sensor voltage. Connect a jumper wire between the (K243) O2 2/2 Signal circuit and the (K904) O2 Return Downstream circuit in the 2/2 O2 Sensor harness connector. Is the voltage between 2.3 and 2.7 Volts with the jumper wire installed? Yes Verify that there is good pin to terminal contact in the 2/2 Oxygen Sensor and Powertrain Control Module connectors. If OK, replace the 2/2 O2 Sensor. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-465971-S04878935642012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 5 . NOTE: Remove the jumper wire before continuing.
5. (K243) O2 2/2 SIGNAL CIRCUIT OPEN Turn the ignition off. Disconnect the C1 and C2 PCM harness connectors. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K243) O2 2/2 Signal circuit from the O2 Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K243) O2 2/2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. (K904) O2 RETURN DOWNSTREAM CIRCUIT OPEN Measure the resistance of the (K904) O2 Return Downstream circuit from the O2 Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 7 . No Repair the open in the (K904) O2 Return Downstream circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 2/2 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. Verify that there is good pin to terminal contact in the Oxygen Sensor and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With the engine running, vehicle speed above 96 kph (60 mph), throttle open for a minimum of 120 seconds, ECT greater than 70° C (158° F), catalytic converter temperature greater than 600° C (1112° F), and downstream oxygen sensor in a rich state. During a decel fuel shutoff event, the downstream oxygen sensor should switch from rich to lean within a specific time.

The Powertrain Control Module (PCM) monitors the downstream O2 sensor. If the PCM does not detect a rich to lean switch within a specific time during a decel fuel shutoff event, the monitor will fail. One trip fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Vehicle is started and driven between 32 and 88.5 km/h (20 and 55 mph) with the Throttle open for a minimum of 120 seconds. Coolant greater than 70° C (158° F). Catalytic Converter Temp greater than 600° C (1112° F) and EVAP Purge is active.

The oxygen sensor signal voltage switches less than 16 times from lean to rich within 20 seconds during monitoring. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Engine running and heater duty cycle greater than 0%. Battery voltage greater than 11.0 Volts.

No sensor output is received when the PCM powers up the sensor heater. Two trip fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 118

1. O2 SENSOR HEATER OPERATION Turn the ignition off. NOTE: Wait a minimum of eight minutes to allow the O2 Sensor to cool down before continuing the test. Allow the O2 Sensor voltage to stabilize between 4.6 and 5.0 Volts. Ignition on, engine not running. With the scan tool, actuate the O2 Heater Test. With the scan tool, monitor 2/2 O2 Sensor voltage for at least two minutes. Does the voltage stay above 4.5 Volts? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. O2 SENSOR HEATER ELEMENT Turn the ignition off. NOTE: Allow the O2 sensor to cool down to room temperature. Disconnect the O2 Sensor harness connector. Measure the resistance of the 2/2 O2 Heater Element, between the O2 Heater Control terminal and the O2 Heater ground terminal in the O2 Sensor connector. NOTE: O2 Heater Element resistance values should be measured at 21.1° C (70° F). The resistance value will vary with different temperature values. Is the resistance of the O2 Sensor Heater Element between 2.0 and 30.0 Ohms? Yes Go To 3 . No Verify that there is good pin to terminal contact in the 2/2 Oxygen Sensor and Powertrain Control Module connectors. If OK, replace the 2/2 O2 Sensor. Refer to «SENSOR, OXYGEN, REMOVAL»(ref-465971-S04878935642012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
3. (K399) O2 2/2 HEATER CONTROL CIRCUIT OPEN Disconnect the C3 PCM 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K399) O2 2/2 Heater Control circuit from the O2 harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 0.5 of an Ohm? Yes Go To 4 . No Repair the excessive resistance in the (K399) O2 2/2 Heater Control circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
4. (Z903) O2 2/2 HEATER GROUND CIRCUIT OPEN Measure the resistance between ground and the (Z903) O2 2/2 Heater ground circuit in the O2 Sensor harness connector. Is the resistance below 0.5 of an Ohm? Yes Go To 5 . No Repair the excessive resistance in the (Z903) O2 2/2 Heater ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen Sensor 2/2 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. Verify that there is good pin to terminal contact in the Oxygen Sensor and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With the engine running in closed loop mode, the ambient/battery temperature above -6.7°C (20°F) and altitude below 2590.8 m (8500 ft).

If the Powertrain Control Module (PCM) multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With the engine running in closed loop mode, the ambient/battery temperature above -6.7°C (20°F) and altitude below 2590.8 m (8500 ft).

If the Powertrain Control Module (PCM) multiplies short term compensation by long term adaptive and a purge fuel multiplier and the result is below a certain value for 30 seconds over two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With the engine running in closed loop mode, the ambient/battery temperature above -6.7°C (20°F) and altitude below 2590.8 m (8500 ft).

If the Powertrain Control Module (PCM) multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With the engine running in closed loop mode, the ambient/battery temperature above -6.7°C (20°F) and altitude below 2590.8 m (8500 ft).

If the Powertrain Control Module (PCM) multiplies short term compensation by long term adaptive and a purge fuel multiplier and the result is below a certain value for 30 seconds over two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With engine off time greater than 480 minutes and ambient temperature greater than -7° C (19.4° F).

After a calibrated amount of cool down time, the Powertrain Control Module (PCM) compares the AAT, ECT and IAT Sensor values. If the general temperature rationality passes, the PCM compares the Oil Temperature Sensor value to a threshold based on the other temp sensor values. If the difference is greater than a calibrated value, the diagnostic fails.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 119

Scheme 120

Scheme 121

1. ACTIVE DTC Turn the ignition off. If possible, allow the vehicle to sit with the ignition off for more than 480 minutes in an environment where the temperature is consistent and above -7° C (19.4° F). Test drive the vehicle. The vehicle must exceed 48 km/h (30 mph) during the test drive. Do not cycle the ignition off when the test drive is completed. With the scan tool, select View DTCs. Is the status Active or Pending for this DTC? Yes Go To 3 . No Go To 2 .
2. ENGINE OIL TEMPERATURE Turn the ignition off. Allow the vehicle to sit with the ignition off in an environment where the temperature is consistent and above -7° C (19.4° F) until the engine coolant temperature is equal to ambient temperature. Turn the ignition on. With the scan tool, compare the EOT sensor value to the AAT, ECT and IAT sensor values. Is the Engine Oil Temperature Sensor value within 10° C (18° F) of the other sensor values? Yes Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) . No Go To 3 .
3. ENGINE OIL TEMPERATURE SENSOR VOLTAGE Turn the ignition off. Disconnect the Engine Oil Temperature Sensor harness connector. Turn the ignition on. With the scan tool, read the Engine Oil Temperature Sensor voltage. NOTE: The sensor voltage should be approximately 5.0 Volts (plus or minus.1 of a Volt) with the connector disconnected. Does the scan tool display the voltage as described above? Yes Go To 4 . No Go To 5 .
4. ENGINE OIL TEMPERATURE SENSOR Turn the ignition on. With the scan tool, read the Engine Oil Temperature Sensor voltage. Connect a jumper wire between the (G24) EOT Signal circuit and the (K900) Sensor Ground circuit in the Engine Oil Temperature Sensor harness connector. NOTE: The sensor voltage should be approximately 0.0 Volts (plus or minus.1 of a Volt) with the jumper wire in place. Does the scan tool display the voltage as described above? Yes Verify that there is good pin to terminal contact in the Engine Oil Temperature Sensor and Powertrain Control Module connectors. Replace the Engine Oil Temperature Sensor if no problems were found with the connectors. Refer to «SENSOR, OIL TEMPERATURE, REMOVAL»(ref-465933-S01030261412012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 5 . NOTE: Remove the jumper wire before continuing.
5. (G24) ENGINE OIL TEMP SIGNAL CIRCUIT OPEN Turn the ignition off. Disconnect the C2 and C3 PCM harness connectors. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (G24) Engine Oil Temp Signal circuit from the Engine Oil Temp Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go to 6 . No Repair the open or excessive resistance in the (G24) Engine Oil Temp Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. (K900) SENSOR GROUND CIRCUIT OPEN 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) along with the Adapter (special tool #8815-1, PCM Pinout Box Adapter) to perform the diagnosis. Measure the resistance of the (K900) Sensor ground circuit from the Engine Oil Temp Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 7 . No Repair the open or excessive resistance in the (G24) Engine Oil Temp Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. 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. Verify that there is good pin to terminal contact in the EOT Sensor and Control Module connectors. Perform any Technical Service Bulletins (TSBs) that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With the ignition on. Battery voltage greater than 10.4 Volts.

The Engine Oil Temperature sensor circuit voltage at the Powertrain Control Module (PCM) is less than the calibrated amount. One Trip Fault. Three good trips to clear the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 122

Scheme 123

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. NOTE: Diagnose and repair any system voltage DTCs before continuing with this test. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. ENGINE OIL TEMPERATURE SENSOR Turn the ignition off. Disconnect the Engine Oil Temp Sensor harness connector. Ignition on, engine not running. With the scan tool, read Engine Oil Temp voltage. NOTE: The sensor voltage should be approximately 5.0 Volts (plus or minus.1 of a Volt) with the connector disconnected. Does the scan tool display the voltage as described above? Yes Verify that there is good pin to terminal contact in the Engine Oil Temperature Sensor and Powertrain Control Module connectors. Replace the Engine Oil Temperature Sensor if no problems were found with the connectors. Refer to «SENSOR, OIL TEMPERATURE, REMOVAL»(ref-465933-S01030261412012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 3 .
3. (G24) ENGINE OIL TEMP SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Turn the ignition off. Disconnect PCM C3 and C2 harness connectors. Measure the resistance between the (K900) Sensor ground circuit and the (G24) Engine Oil Temp Signal circuit in the Engine Oil Temp Sensor harness connector. Is the resistance below 5.0 Ohms? Yes Repair the short to between the (K900) Sensor ground circuit and the (G24) Engine Oil Temp Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (G24) ENGINE OIL TEMP SIGNAL CIRCUIT SHORTED GROUND Measure the resistance between ground and the (G24) Engine Oil Temp Signal circuit in the Engine Oil Temp Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (G24) Engine Oil Temp Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 5 .
5. (G24) ENGINE OIL TEMPERATURE SIGNAL CIRCUIT OPEN 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (G24) Engine Oil Temperature Signal circuit between the Engine Oil Temperature Sensor harness connector and the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open or excessive resistance in the (G24) EOT Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
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. Verify that there is good pin to terminal contact in the Sensor and Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With the ignition on. Battery voltage greater than 10.4 Volts.

The Engine Oil Temperature Sensor circuit voltage at the Powertrain Control Module (PCM) is greater than the calibrated amount. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 124

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. NOTE: Diagnose and repair any system voltage DTCs before continuing with this test. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. ENGINE OIL TEMP SENSOR With the scan tool, clear the DTC. Turn the ignition off. Disconnect the Engine Oil Temp Sensor harness connector. Connect a jumper wire between the (G24) Engine Oil Temp Signal circuit and the (K900) Sensor ground circuit in the Engine Oil Temp Sensor harness connector. Ignition on, engine not running. NOTE: The sensor voltage should be approximately 0.0 Volts (plus or minus.1 of a Volt) with the jumper wire in place. Does the scan tool display the voltage as described above? Yes Verify that there is good pin to terminal contact in the EOT Sensor and Control Module connectors. Replace the Engine Oil Temperature Sensor if no problems were found with the connectors. Refer to «SENSOR, OIL TEMPERATURE, REMOVAL»(ref-465933-S01030261412012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 3 . NOTE: Remove the jumper wire before continuing.
3. (G24) ENGINE OIL TEMP SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C2 and C3 PCM harness connectors. Ignition on, engine not running. Measure the voltage on the (G24) Engine Oil Temp Signal circuit in the Engine Oil Temp Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (G24) Engine Oil Temp Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (G24) ENGINE OIL TEMP SIGNAL CIRCUIT OPEN Turn the ignition off. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (G24) Engine Oil Temp Signal circuit from the Engine Oil Temp Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 5 . No Repair the open or excessive resistance in the (G24) Engine Oil Temp Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K900) SENSOR GROUND CIRCUIT OPEN 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K900) Sensor ground circuit from the Engine Oil Temp Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open or excessive resistance in the (K900) Sensor ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
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. Verify that there is good pin to terminal contact in the Sensor and Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

Scheme 125

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 126

Scheme 127

Scheme 128

Scheme 129

1. DTC IS ACTIVE Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 1 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C2 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 1 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 1 WIRING AND CONNECTOR INSPECTION Turn the ignition off. Verify that the Fuel Injector 1 is properly connected to the injector. Disconnect the Fuel Injector 1 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 1 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Install the ASD Relay. Connect the C2 PCM harness connector. Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 1 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 5 . No Repair the excessive resistance or short to ground in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K11) INJECTOR 1 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K11) Injector 1 Control circuit between the Fuel Injector 1 harness connector and the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the excessive resistance or open in the (K11) Injector 1 Control circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 1 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 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 that may apply. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 1 in accordance with the Service Information. Refer to «INJECTOR(S), FUEL, REMOVAL»(ref-465971-S14961080592012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K11) INJECTOR 1 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K11) Injector 1 Control circuit in the Fuel Injector 1 harness connector. Is the resistance above 100 Ohms? Yes Go To 8 . No Repair the (K11) Injector 1 Control circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 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 that may apply. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

Scheme 130

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 131

Scheme 132

Scheme 133

Scheme 134

1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 2 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C2 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 2 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay connector. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 2 WIRING AND CONNECTOR INSPECTION Turn the ignition off. Verify that the Fuel Injector 2 is properly connected to the injector. Disconnect the Fuel Injector 2 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 2 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 2 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 5 . No. Repair the excessive resistance or short to ground in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K12) INJECTOR 2 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K12) Injector Control No. 2 circuit from the Fuel Injector harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K12) Injector Control No. 2 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 2 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 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 that may apply. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 2 in accordance with the Service Information. Refer to «INJECTOR(S), FUEL, REMOVAL»(ref-465971-S14961080592012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K12) INJECTOR CONTROL NO. 2 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K12) Injector Control No. 2 circuit in the Injector harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K12) Injector Control No. 2 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 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 that may apply. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 135

Scheme 136

Scheme 137

Scheme 138

1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 3 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C2 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 3 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay connector. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 3 WIRING AND CONNECTOR INSPECTION Turn the ignition off. Verify that the Fuel Injector 3 is properly connected to the injector. Disconnect the Fuel Injector 3 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 3 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Install the ASD Relay. Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 3 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 5 . No. Repair the excessive resistance or short to ground in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K13) INJECTOR 3 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K13) Injector Control No. 3 circuit from the Fuel Injector harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K13) Injector Control No. 3 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 3 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 3 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 3 in accordance with the Service Information. Refer to «INJECTOR(S), FUEL, REMOVAL»(ref-465971-S14961080592012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K13) INJECTOR CONTROL NO. 3 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K13) Injector Control No. 3 circuit in the Injector harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K13) Injector Control No. 3 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 3 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 139

Scheme 140

Scheme 141

Scheme 142

1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 4 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C2 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 4 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay connector. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 4 WIRING AND CONNECTOR INSPECTION Turn the ignition off. Verify that the Fuel Injector 4 is properly connected to the injector. Disconnect the Fuel Injector 4 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 4 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Install the ASD Relay. Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 4 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 5 . No. Repair the excessive resistance or short to ground in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K14) INJECTOR 4 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K14) Injector Control No. 4 circuit from the Fuel Injector harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K14) Injector Control No. 4 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 4 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 4 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 4 in accordance with the Service Information. Refer to «INJECTOR(S), FUEL, REMOVAL»(ref-465971-S14961080592012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K14) INJECTOR CONTROL NO. 4 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K14) Injector Control No. 4 circuit in the Injector harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K14) Injector Control No. 4 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 4 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 143

Scheme 144

Scheme 145

Scheme 146

1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 5 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C2 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 5 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay connector. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 5 WIRING AND CONNECTOR INSPECTION Verify that the Fuel Injector 5 is properly connected to the injector. Disconnect the Fuel Injector 5 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 5 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Install the ASD Relay. Connect the C2 PCM harness connector. Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 5 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 5 . No. Repair the excessive resistance or short to ground in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K38) INJECTOR 5 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K38) Injector Control No. 5 circuit from the Fuel Injector harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K38) Injector Control No. 5 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 5 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 5 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 5 in accordance with the Service Information. Refer to «INJECTOR(S), FUEL, REMOVAL»(ref-465971-S14961080592012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K38) INJECTOR 5 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K38) Injector Control No. 5 circuit in the Injector harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K38) Injector Control No. 5 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 5 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 147

Scheme 148

Scheme 149

Scheme 150

1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 6 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C2 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 6 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay connector. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 6 WIRING AND CONNECTOR INSPECTION Turn the ignition off. Verify that the Fuel Injector 6 is properly connected to the injector. Disconnect the Fuel Injector 6 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 6 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Install the ASD Relay. Connect the C2 PCM harness connector. Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 6 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 5 . No. Repair the excessive resistance or short to ground in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K58) INJECTOR 6 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K58) Injector Control No. 6 circuit from the Fuel Injector harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 6.0 Ohms? Yes Go To 6 . No Repair the excessive resistance or open in the (K58) Injector Control No. 6 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 6 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 6 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 6 in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K58) INJECTOR 6 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K58) Injector Control No. 6 circuit in the Injector harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K58) Injector Control No. 6 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 6 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 151

Scheme 152

Scheme 153

Scheme 154

1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 7 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C1 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 7 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay connector. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 7 WIRING AND CONNECTOR INSPECTION Turn the ignition off. Verify that the Fuel Injector 7 is properly connected to the injector. Disconnect the Fuel Injector 7 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 7 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Install the ASD Relay. Connect the C2 PCM harness connector. Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 7 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 5 . No. Repair the excessive resistance or short to ground in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K26) INJECTOR 7 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K26) Injector Control No. 7 circuit from the Fuel Injector harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the excessive resistance or open in the (K26) Injector Control No. 7 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 7 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 7 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 7 in accordance with the Service Information. Refer to «INJECTOR(S), FUEL, REMOVAL»(ref-465971-S14961080592012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K26) INJECTOR 7 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C1 PCM harness connector. Measure the resistance between ground and the (K26) Injector Control No. 7 circuit in the Injector harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K26) Injector Control No. 7 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 7 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With battery voltage greater than 10 Volts. Auto Shutdown Relay energized. Engine speed less than 3000 RPM.

The Powertrain Control Module (PCM) monitors the continuity of the injector circuits as well as the voltage spike created by the collapse of the magnetic field in the injector coil. Any condition that reduces the maximum current flow or the magnitude of the voltage spike can cause this DTC to set.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 155

Scheme 156

Scheme 157

Scheme 158

1. ACTIVE DTC Turn the ignition on. With the scan tool, select View DTCs. Record 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: Review Freeze Frame information. Operate the vehicle under conditions similar to which the DTC was set. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 2 . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .
2. FUEL INJECTOR 8 CIRCUIT RESISTANCE Turn the ignition off. Disconnect the C1 PCM harness connector. Remove the ASD Relay. NOTE: The resistance of the circuit will vary according to the temperature of the injector coil. Use the table below to determine the resistance range of the injector. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the Fuel Injector 8 circuit from the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) and the ASD Relay connector. Fuel Injector Coil Resistance Based on Engine Temperature Temperature Resistance -20° C (-4° F) 10 Ohms (+/-.6 of an Ohm) 20° C (68° F) 12 Ohms (+/-.6 of an Ohm) 60° C (140° F) 14 Ohms (+/-.6 of an Ohm) 100° C (212° F) 16 Ohms (+/-.6 of an Ohm) Is the resistance of the injector within the specified range? Yes Go To 7 . No Go To 3 .
3. FUEL INJECTOR 8 WIRING AND CONNECTOR INSPECTION Turn the ignition off. Verify that the Fuel Injector 8 is properly connected to the injector. Disconnect the Fuel Injector 8 connector and Inspect the terminals for any condition that would result in a poor connection. Using the wiring diagram/schematic as a guide, inspect the Fuel Injector 8 wiring and connector. 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 Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Install the ASD Relay. Connect the C2 PCM harness connector. Turn the ignition on. With the scan tool, actuate the Auto Shutdown (ASD) Relay Control State. Using a 12-volt test light connected to ground, check the (F342) ASD Relay Output circuit in the Fuel Injector 8 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 5 . No. Repair the excessive resistance or open in the (F342) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K28) INJECTOR 8 CONTROL CIRCUIT OPEN OR 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K28) Injector Control No. 8 circuit from the Fuel Injector harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open or excessive resistance in the (K28) Injector Control 8 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. FUEL INJECTOR 8 Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 8 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace the Fuel Injector 8 in accordance with the Service Information. Refer to «INJECTOR(S), FUEL, REMOVAL»(ref-465971-S14961080592012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K28) INJECTOR 8 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C1 PCM harness connector. Measure the resistance between ground and the (K28) Injector Control No. 8 circuit in the Injector harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K28) Injector Control No. 8 circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Injector 8 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. Verify that there is good pin to terminal contact in the Injector and Powertrain Control Module connectors. Were there any issues? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

Scheme 159

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Ignition on and No MAP Sensor DTCs set.

TP Sensor signals do not correlate to the MAP Sensor signal. Two Trip Fault. ETC light will illuminate. P2135 should set with this code also.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 160

1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) NOTE: When this DTC is Active the engine speed, torque, and vehicle speed are limited to a Limp in mode. NOTE: Diagnose any other TP Sensor DTCs before continuing. NOTE: The throttle plate and linkage should be free from binding and carbon build up. NOTE: Make sure the throttle plate is at the idle position. NOTE: Inspect the engine for vacuum leaks. Ignition on, engine not running. With a scan tool, read the active DTCs. Is the DTC Active at this time? Yes Go To 2 . No Go To 9 .
2. EXCESSIVE RESISTANCE IN THE (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT Turn the ignition off. Disconnect the C2 PCM 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) along with the Adapter (special tool #8815-1, PCM Pinout Box Adapter) to perform the diagnosis. Using a Voltmeter perform a voltage drop test. Backprobe the (K122) TP Sensor No. 2 Signal circuit at the Throttle Body harness connector and probe the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Make sure the Voltmeter leads are connected so a positive polarity is displayed on the Voltmeter. 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. Start the engine and allow it to reach normal operating temperature. Monitor the Voltmeter. Is the voltage below 0.5 of a Volt? Yes Go To 3 . No Repair the excessive resistance in the (K122) TP Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
3. EXCESSIVE RESISTANCE IN THE (K22) TP SENSOR NO. 1 SIGNAL CIRCUIT Turn the ignition off. Move the Voltmeter leads to backprobe the (K22) TP Sensor No. 1 Signal circuit at the Throttle Body harness connector and to probe the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Make sure the Voltmeter leads are connected so a positive polarity is displayed on the Voltmeter. 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. Start the engine and allow it to reach normal operating temperature. Monitor the Voltmeter. Is the voltage below 0.5 of a Volt? Yes Go To 4 . No Repair the excessive resistance in the (K22) TP Sensor No. 1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
4. EXCESSIVE RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT Turn the ignition off. Move the Voltmeter leads to backprobe the (F855) 5-Volt Supply circuit at the Throttle Body harness connector and to probe the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Make sure the Voltmeter leads are connected so a positive polarity is displayed on the Voltmeter. 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. Start the engine and allow it to reach normal operating temperature. Monitor the Voltmeter. Is the voltage below 0.5 of a Volt? Yes Go To 5 . No Repair the excessive resistance in the (F855) 5-Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. EXCESSIVE RESISTANCE IN THE (K922) TP SENSOR RETURN CIRCUIT Turn the ignition off. Move the Voltmeter leads to backprobe the (K922) TP Sensor Return circuit at the Throttle Body harness connector and to probe the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Make sure the Voltmeter leads are connected so a positive polarity is displayed on the Voltmeter. 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. Start the engine and allow it to reach normal operating temperature. Monitor the Voltmeter. Is the voltage below 0.5 of a Volt? Yes Go To 6 . No Repair the excessive resistance in the (K922) TP Sensor Return circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. (K22) TP SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO THE (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT Measure the resistance between the (K22) TP Sensor No. 1 Signal circuit and the (K122) TP Sensor No. 2 Signal circuit at the Throttle Body harness connector. Is the resistance below 5.0 Ohms? Yes Repair the short between the (K122) TP Sensor No. 2 Signal circuit and the (K22) TP Sensor No. 1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 7 .
7. THROTTLE POSITION SENSOR Turn the ignition off. Connect the C2 PCM harness connector. Ignition on, engine not running. Using the scan tool, monitor the TP Sensor No. 1 and No. 2 voltage. Connect a jumper wire between the (K922) TP Sensor Return circuit and the (K22) TP Sensor No. 1 Signal circuit. NOTE: TP Sensor No. 1 voltage should change from approximately 4.7 Volts to 0.3 of a Volt. For TP Sensor No. 2, connect a jumper wire between (F855) 5-Volt supply circuit and the (K122) TP Sensor No. 2 Signal circuit. NOTE: TP Sensor No. 2 voltage should change from approximately 0 Volts to 5.0 Volts. Is the voltage reading within the listed specification with the jumper wire installed? Yes Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. Refer to «THROTTLE BODY, REMOVAL»(ref-465971-S11257859612012042300000) . After installation is complete, using a scan tool, select the ETC RELEARN function. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 . NOTE: Remove the jumper wire before continuing.
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. Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the service information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
9. THROTTLE FOLLOWER TEST Ignition on, engine not running. Using the scan tool, perform the ETC Throttle Follower Test and monitor the TP Sensor No. 1 or No. 2 voltage. Slowly press the throttle pedal down. The voltage for TP Sensor No. 1 should start at approximately 0.7 of a Volt and increase to approximately 4.3 Volts. The voltage for TP Sensor No. 2 should start at approximately 4.3 Volts and decrease to approximately 0.7 of a Volt. Is the voltage within the range of the listed specification for the appropriate Sensor? Yes Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) . No Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. Refer to «THROTTLE BODY, REMOVAL»(ref-465971-S11257859612012042300000) . After installation is complete, using a scan tool select the ETC RELEARN function. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With the ignition on. Battery voltage greater than 10 Volts.

Throttle Position Sensor voltage at the Powertrain Control Module (PCM) is less than 0.16 of a Volt for 0.7 of a second. One Trip Fault. Three good trips to turn off the MIL. ETC light will illuminate.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 161

Scheme 162

Scheme 163

Scheme 164

Scheme 165

Scheme 166

1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) NOTE: When this DTC is Active the engine speed, torque and vehicle speed are limited to a Limp in mode. NOTE: If a 5 Volt supply DTC has also set, diagnose the 5 Volt DTC before continuing. NOTE: Make sure the throttle moves freely and does not hang up at Wide Open Throttle, by performing the Throttle Follower Test NOTE: If P2101 is also set, then make sure that the blade moves freely and does not hang up near Wide Open Throttle before trying to repair P0222. Ignition on, engine not running. Using the scan tool, read the active DTCs. Is the DTC Active at this time? Yes Go To 2 . No Go To 11 .
2. P0122 ALSO SET Was the P0122-TP SENSOR NO. 1 VOLTAGE LOW DTC set along with the P0222? Yes Go To 3 . No Go To 4 .
3. (K855) 5 VOLT SUPPLY CIRCUIT Turn the ignition off. Disconnect the Throttle Body harness connector. Ignition on, engine not running. Measure the voltage on the (K855) 5 Volt Supply circuit in the Throttle Body harness connector. Is the voltage between 4.5 to 5.2 Volts? Yes Go To 4 . No Go To 8 .
4. THROTTLE POSITION SENSOR Connect a jumper wire between the (K855) 5 Volt Supply circuit and the (K122) TP Sensor No. 2 Signal circuit in the Throttle Body harness connector. Using the scan tool, monitor the TP Sensor No. 2 voltage. Is the voltage between 4.8 and 5.2 Volts with the jumper wire installed? Yes Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. Refer to «THROTTLE BODY, REMOVAL»(ref-465971-S11257859612012042300000) . After installation is complete, with a scan tool select the ETC RELEARN function. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 5 . NOTE: Remove the jumper wire before continuing.
5. (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K122) TP Sensor No. 2 Signal circuit from the Throttle Body harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K122) TP Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K122) TP Sensor No. 2 Signal circuit at the Throttle Body harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K122) TP Sensor No. 2 Signal. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 7 .
7. (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO THE (K922) TP SENSOR RETURN CIRCUIT Measure the resistance between the (K122) TP Sensor No. 2 Signal circuit and the (K922) TP Sensor Return circuit at the Throttle Body harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K922) TP Sensor Return circuit and the (K122) TP Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 10 .
8. (K855) 5 VOLT SUPPLY CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K855) 5 Volt Supply circuit from the Throttle Body harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 9 . No Repair the open in the (K855) 5 Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
9. (K855) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K855) 5 Volt Supply circuit at the Throttle Body harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K855) 5 Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . 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. Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
11. THROTTLE FOLLOWER TEST Ignition on, engine not running. Using the scan tool, perform the ETC Throttle Follower Test. Monitor the TP Sensor No. 2 voltage while slowly pressing the Throttle pedal down. Is there a smooth voltage change from approximately 4.3 Volts and decrease to approximately 0.7 of a Volt? Yes Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) . No Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. Refer to «THROTTLE BODY, REMOVAL»(ref-465971-S11257859612012042300000) . After installation is complete, with a scan tool select the ETC RELEARN function. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

With the ignition on.

Throttle Position Sensor No. 2 Signal circuit voltage is greater than 4.9 Volts for 25 ms. One Trip Fault. ETC light will illuminate.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 167

Scheme 168

Scheme 169

1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) NOTE: When this DTC is Active the engine speed, torque and vehicle speed are limited to a Limp in mode. NOTE: If a 5 Volt supply DTC has also set, diagnose the 5 Volt DTC before continuing. Ignition on, engine not running. With the scan tool, read the active DTCs. Is the DTC Active at this time? Yes Go To 2 . No Go To 7 .
2. THROTTLE POSITION SENSOR Turn the ignition off. Disconnect the Throttle Body Assembly harness connector. Ignition on, engine not running. With the scan tool monitor the TP Sensor No. 2 voltage. Is the voltage below 0.5 of a Volt? Yes Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. Refer to «THROTTLE BODY, REMOVAL»(ref-465971-S11257859612012042300000) . After installation is complete, using a scan tool select the ETC RELEARN function. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 3 .
3. (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K122) TP Sensor No. 2 Signal circuit at the Throttle Body harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K122) TP Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 4 .
4. (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO THE (F855) 5 VOLT SUPPLY CIRCUIT Measure the resistance between the (K122) TP Sensor No. 2 Signal circuit and the (F855) 5 Volt Supply circuit at the Throttle Body harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K122) TP Sensor No. 2 Signal circuit and the (F855) 5 Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 5 .
5. (K922) TP SENSOR RETURN CIRCUIT OPEN 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K922) TP Sensor Return circuit from the Throttle Body harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (K922) TP Sensor Return circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
6. 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. Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. THROTTLE FOLLOWER TEST Using the scan tool, perform the ETC Throttle Follower Test. Monitor the TP Sensor No. 2 voltage while slowly pressing the Throttle pedal down. Is there a smooth voltage change from approximately 4.3 Volts and decrease to approximately 0.7 of a Volt? Yes Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) . No Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. Refer to «THROTTLE BODY, REMOVAL»(ref-465971-S11257859612012042300000) . After installation is complete, using a scan tool select the ETC RELEARN function. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

The engine oil temperature has dropped below a calibrated value. Engine start up.

The Engine Oil temperature rises faster than a calibrated modeled temperature. When the actual oil temperature exceeds the high boundary of the calibrated modeled temperature for three minutes the fault is set. Two trip fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Any time the engine is running, and the adaptive numerator has been successfully updated.

The threshold to set the fault is application specific; it is tied to the level of misfire that will cause emissions to increase to 1.5 times the standard or in some cases 1%. It is always a two trip fault above the calibrated RPM. It takes one fail to set a Pending Fault and two trips to set the MIL. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Under closed throttle decel and A/C off. ECT above 75° C (167° F). Engine start time is greater than 50 seconds.

One of the CKP sensor target windows has more than 2% variance from the reference. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

This monitor runs above 2000 RPM, under open throttle conditions. The Knock diagnostic does not run at idle or during decelerations. The high voltage test runs all the times the engine is running.

The Powertrain Control Module (PCM) detects that the Knock Sensor input voltage is: Above 4.0 Volts, less than or equal to 1.0 Volt with engine RPM at or above 2200 or equal to 0.0 Volts with engine RPM below 2200. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 170

Scheme 171

Scheme 172

Scheme 173

Scheme 174

1. ACTIVE DTC 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-466029-S27099658822012042300000) .
2. (K42) KNOCK SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Knock Sensor harness connector. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K42) Knock Sensor No. 1 Signal circuit in the Knock Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K42) Knock Sensor No. 1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 3 .
3. (K42) KNOCK SENSOR NO. 1 SIGNAL CIRCUIT OPEN Turn the ignition off. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K42) Knock Sensor No. 1 Signal circuit from the Knock Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 4 . No Repair the open in the (K42) Knock Sensor No. 1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
4. (K942) KNOCK SENSOR NO. 1 RETURN CIRCUIT OPEN Measure the resistance of the (K942) Knock Sensor No. 1 Return circuit from the Knock Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 5 . No Repair the open in the (K942) Knock Sensor No. 1 Return circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K42) KNOCK SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO THE (K942) KNOCK SENSOR NO. 1 RETURN CIRCUIT Measure the resistance between the (K42) Knock Sensor No. 1 Signal circuit and the (K942) Knock Sensor No. 1 Return circuit in the Knock Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K42) Knock Sensor No. 1 Signal circuit and the (K942) Knock Sensor No. 1 Return circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 6 .
6. (K42) KNOCK SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K42) Knock Sensor No. 1 Signal circuit in the Knock Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K42) Knock Sensor No. 1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 7 .
7. KNOCK SENSOR 1 Turn the ignition off. Verify that there is good pin to terminal contact at the Knock Sensor and the Powertrain Control Module connectors. If no problems were found in the connectors, replace the Knock Sensor 1. Refer to «SENSOR, KNOCK, REMOVAL»(ref-465970-S01215628762012042300000) . Connect the Powertrain Control Module (PCM) harness connector. Turn the ignition on. With the scan tool, clear DTCs. 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. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to reset. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go to 8 . No Test complete. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Knock 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. 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

This monitor runs above 2000 RPM, under open throttle conditions. The Knock diagnostic does not run at idle or during decelerations. The high voltage test runs all the times the engine is running.

The Powertrain Control Module (PCM) detects that the Knock Sensor input voltage is: Above 4.0 Volts, less than or equal to 1.0 Volt with engine RPM at or above 2200 or equal to 0.0 Volts with engine RPM below 2200. Two Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 175

Scheme 176

1. ACTIVE DTC 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-466029-S27099658822012042300000) .
2. (K242) KNOCK SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the No. 2 Knock Sensor harness connector. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K242) Knock Sensor No. 2 Signal circuit in the Knock Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K242) Knock Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 3 .
3. (K242) KNOCK SENSOR NO. 2 SIGNAL CIRCUIT OPEN Turn the ignition off. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K242) Knock Sensor No. 2 Signal circuit from the Knock Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 4 . No Repair the open in the (K242) Knock Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
4. (K924) KNOCK SENSOR NO. 2 RETURN CIRCUIT OPEN Measure the resistance of the (K924) Knock Sensor No. 2 Return circuit from the Knock Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 5 . No Repair the open in the (K924) Knock Sensor No. 2 Return circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K242) KNOCK SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO THE (K924) KNOCK SENSOR NO. 2 RETURN CIRCUIT Measure the resistance between the (K242) Knock Sensor No. 2 Signal circuit and the (K924) Knock Sensor No. 2 Return circuit in the Knock Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short between the (K242) Knock Sensor No. 2 Signal circuit and the (K924) Knock Sensor No. 2 Return circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 6 .
6. (K242) KNOCK SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K242) Knock Sensor No. 2 Signal circuit in the Knock Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K242) Knock Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 7 .
7. KNOCK SENSOR 2 Turn the ignition off. If no problems were found in the connectors, replace the Knock Sensor 2. Refer to «SENSOR, KNOCK, REMOVAL»(ref-465970-S01215628762012042300000) . Connect the Powertrain Control Module (PCM) harness connector. Turn the ignition on. With the scan tool, clear DTCs. 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. NOTE: It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to reset. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go To 8 . No Test complete. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Knock Sensor 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 that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «SENSOR, KNOCK, REMOVAL»(ref-465970-S01215628762012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .

Scheme 177

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Engine cranking.

No CKP signal is present during engine cranking and at least eight camshaft position sensor signals have occurred. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 178

Scheme 179

Scheme 180

Scheme 181

Scheme 182

Scheme 183

Scheme 184

Scheme 185

1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) Crank the engine. Ignition on, engine not running. With the scan tool, read the active DTCs. Is the DTC Active at this time? Yes Go To 2 . No Go To 14 .
2. (K855) 5 VOLT SUPPLY CIRCUIT Turn the ignition off. Disconnect the CKP Sensor harness connector. Ignition on, engine not running. Measure the voltage on the (K855) 5 Volt Supply circuit in the CKP Sensor harness connector. Is the voltage between 4.5 and 5.2 Volts? Yes Go To 3 . No Go To 10 .
3. (K24) CKP SIGNAL CIRCUIT Measure the voltage on the (K24) CKP Signal circuit in the CKP Sensor harness connector. NOTE: The sensor voltage should be approximately 5.0 Volts (plus or minus.1 of a Volt) with the connector disconnected. Is the voltage as described above? Yes Go To 4 . No Go To 7 .
4. (K900) SENSOR GROUND CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K900) Sensor ground circuit from the CKP Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 5 . No Repair the open in the (K900) Sensor ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
5. (K24) CKP SIGNAL CIRCUIT SHORTED TO THE (K855) 5 VOLT SUPPLY CIRCUIT Measure the resistance between the (K24) CKP Signal circuit and the (K855) 5 Volt Supply circuit in the CKP Sensor harness connector. Is the resistance below 5.0 Ohms? Yes Repair the short between the (K24) CKP Signal circuit and the (K855) 5 Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 6 .
6. CRANKSHAFT POSITION SENSOR NOTE: Inspect the slots on the flywheel for damage. If a problem is found repair as necessary. Repair Verify that there is good pin to terminal contact in the Crank Position Sensor and Powertrain Control Module connectors. Replace the Crank Position Sensor if no problems were found with the connectors. Refer to «SENSOR, CRANKSHAFT POSITION, REMOVAL»(ref-465971-S15853337242012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
7. (K24) CKP SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K24) CKP Signal circuit in the CKP Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K24) CKP Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 8 .
8. (K24) CKP SIGNAL CIRCUIT OPEN Turn the ignition off. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K24) CKP Signal circuit from the CKP Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 9 . No Repair the open in the (K24) CKP Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
9. (K24) CKP SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K24) CKP Signal circuit in the CKP Sensor harness connector. Is the resistance below 5.0 Ohms? Yes Repair the short to ground in the (K24) CKP Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 13 .
10. (K855) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K855) 5 Volt Supply circuit in the CKP Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K855) 5 Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 11 .
11. (K855) 5 VOLT SUPPLY CIRCUIT OPEN Turn the ignition off. 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Measure the resistance of the (K855) 5 Volt Supply circuit from the CKP Sensor harness connector to the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go To 12 . No Repair the open in the (K855) 5 Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
12. (K855) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K855) 5 Volt Supply circuit in the CKP Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K855) 5 Volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 13 .
13. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the related 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 related Sensor and the Powertrain Control Module 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-466029-S26275093572012042300000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-465939-S29940986652012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) .
14. ERRATIC CKP SENSOR SIGNAL Turn the ignition off. With a lab scope backprobe the (K24) CKP Signal circuit in the CKP harness connector. 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. Ignition on, engine not running. Wiggle the related wire harness and lightly tap on the Crank Position Sensor. Observe the lab scope screen. Look for any pulses generated by the CKP Sensor. Allow the engine to idle. Observe the lab scope screen. Did the CKP Sensor generate any erratic pulses? Yes Verify that there is good pin to terminal contact in the Crank Position Sensor and Powertrain Control Module connectors. Replace the Crank Position Sensor if no issues were found with the connectors. Refer to «SENSOR, CRANKSHAFT POSITION, REMOVAL»(ref-465971-S15853337242012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Go To 15 .
15. ERRATIC CMP SIGNAL Turn the ignition off. With a lab scope backprobe the (K44) Cam Position Sensor (CMP) Signal circuit in the CMP harness connector. 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. Ignition on, engine not running. Wiggle the related wire harness and lightly tap on the Cam Position Sensor. Observe the lab scope screen. Look for any pulses generated by the CMP Sensor. Allow the engine to idle. Observe the lab scope screen. NOTE: On multiple CMP sensor engines repeat this test for the other signal circuits Did the CMP Sensor generate any pulses? Yes Verify that there is good pin to terminal contact in the CMP Sensor and Powertrain Control Module connectors. Replace the Camshaft Position Sensor if no issues were found with the connectors. Refer to «SENSOR, CAMSHAFT POSITION, REMOVAL»(ref-465970-S38187556142012042300000) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(ref-466029-S26275093572012042300000) . No Test complete, the conditions that set this DTC are not present at this time. Perform the INTERMITTENT CONDITION diagnostic procedure for further assistance. Refer to «INTERMITTENT CONDITION»(ref-466029-S27099658822012042300000) .