Dtcs P2009 to P2116: Other Jeep Compass I

Monitor Conditions

1. When Monitored: With the engine running and battery voltage greater than 10.4 volts.

Set Conditions

1. Set Condition: The PCM detects that the Manifold Flow Valve control circuit is shorted low.

Possible Causes

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 438

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Scheme 441

1. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (Z916) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Manifold Flow Valve connector. Using a 12 volt test light connected to 12 volts, check the (Z916) Ground circuit in the Manifold Flow Valve 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 3 . No Repair the (Z916) Ground circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
3. (K601) MFV CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between ground and the (K601) MFV Control circuit in the Manifold Flow Valve harness connector. Is the resistance below 100 ohms? Yes Repair the (K601) MFV Control circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K601) MFV CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K601) MFV Control circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K601) MFV Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. MANIFOLD FLOW VALVE Connect the Powertrain Control Module (PCM) connector. Turn the ignition on. With the scan tool, actuate the Manifold Flow Valve control to the ON (100%) position. Using a 12 volt test light connected to ground, check the (K601) MFV Control circuit in the Manifold Flow Valve harness connector. NOTE: The test light should be illuminated and bright with the control actuated ON (100%). Compare the brightness to that of a direct connection to the battery. With the scan tool, actuate the Manifold Flow Valve control to OFF (0%). Using a 12 volt test light connected to 12 ground, check the (K601) MFV Control circuit in the Manifold Flow Valve harness connector. NOTE: The test light should not be illuminated with the control actuated OFF (0%). Is the test light illuminated and bright with the control actuated ON and not illuminated with the control actuated OFF? Yes Replace the Manifold Flow Valve in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Manifold Flow Valve 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. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the engine running and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the Manifold Flow Valve control circuit is shorted high.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 442

1. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K601) MFV CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Manifold Flow Valve connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K601) MFV Control circuit in the Manifold Flow Valve harness connector. Is there any voltage present? Yes Repair the (K601) MFV Control circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (K601) MFV CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K601) MFV Control circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 4 . No Repair the (K601) MFV Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
4. MANIFOLD FLOW VALVE Connect the Powertrain Control Module (PCM) connector. Turn the ignition on. With the scan tool, actuate the Manifold Flow Valve control to the ON (100%) position. Using a 12 volt test light connected to ground, check the (K601) MFV Control circuit in the Manifold Flow Valve harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. With the scan tool, actuate the Manifold Flow Valve control to the OFF (0%) position. Using a 12 volt test light connected to ground, check the (K601) MFV Control circuit in the Manifold Flow Valve harness connector. NOTE: The test light should not be illuminated. Is the test light illuminated and bright with the actuator ON (100%) and not illuminated with the actuator OFF (0%)? Yes Replace the Manifold Flow Valve in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 5 .
5. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Manifold Flow Valve 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. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the ignition on and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects an implausible voltage on the Manifold Flow Valve circuit.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 443

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1. DTC IS ACTIVE Start the engine. Allow the engine to reach normal operating temperature. NOTE: Diagnose and repair any system voltage or sensor reference voltage DTCs before continuing with this test. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go To 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K857) 5 VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Manifold Flow Valve connector. Turn the ignition on. Measure the voltage of the (K857) 5 Volt Supply circuit in the Manifold Flow Valve harness connector. Is the voltage between 4.5 and 5.5 volts? Yes Go to 3 . No Go to 7 .
3. (K602) MFV SIGNAL CIRCUIT VOLTAGE Measure the voltage of the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Is the voltage between 4.5 and 5.5 volts? Yes Go to 4 . No Go to 11 .
4. (K900) SENSOR GROUND CIRCUIT TEST Turn the ignition off. Using a 12 volt test light connected to 12 volts, check the (K900) Sensor Ground in the Manifold Flow Valve 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 Go to 15 .
5. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K602) MFV SIGNAL CIRCUIT Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between the (K857) 5 Volt Supply circuit and the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 6 . No Repair the (K857) 5 Volt Supply circuit for a short to the (K602) MFV Signal circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
6. MANIFOLD FLOW VALVE Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Manifold Flow Valve and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Inspect the Manifold Flow Valve for any condition that would result in an incorrect signal, such as damage or contamination. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace the Manifold Flow Valve. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
7. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K857) 5 Volt Supply circuit in the Manifold Flow Valve harness connector. Is there any voltage present? Yes Repair the (K857) 5 Volt Supply circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 8 .
8. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (K857) 5 Volt Supply circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 9 . No Repair the (K857) 5 Volt Supply circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
9. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K857) 5 Volt Supply circuit and the (K900) Sensor Ground circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 10 . No Repair the (K857) 5 Volt Supply circuit for a short to the (K900) Sensor Ground circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
10. (K857) 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K857) 5 Volt Supply circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 16 . No Repair the (K857) 5 Volt Supply circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
11. (K602) MFV SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Is there any voltage present? Yes Repair the (K602) MFV Signal circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 12 .
12. (K602) MFV SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 13 . No Repair the (K602) MFV Signal circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
13. (K602) MFV SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K602) MFV Signal circuit and the (K900) Sensor Ground circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 14 . No Repair the (K602) MFV Signal circuit for a short to the (K900) Sensor Ground circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
14. (K602) MFV SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K602) MFV Signal circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 16 . No Repair the (K602) MFV Signal circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
15. (K900) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance of the (K900) Sensor Ground circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 16 . No Repair the circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
16. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Manifold Flow Valve and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the ignition on and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the MFV Position Sensor input voltage is below the minimum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 453

1. DTC IS ACTIVE NOTE: Diagnose and repair any system voltage or sensor reference voltage DTCs before continuing with this test. Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K857) 5 VOLT SUPPLY CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Manifold Flow Valve connector. Turn the ignition on. Measure the voltage of the (K857) 5 Volt Supply circuit in the Manifold Flow Valve harness connector. Is the voltage above 4.5 volts? Yes Go to 6 . No Go to 3 .
3. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND Turn the ignition on. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between ground and the (K857) 5 Volt Supply circuit in the Manifold Flow Valve harness connector. Is the resistance above 1000 ohms? Yes Go to 4 . No Repair the (K857) 5 Volt Supply circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
4. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K857) 5 Volt Supply circuit and the (K900) Sensor Ground circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 5 . No Repair the (K857) 5 Volt Supply circuit for a short to the (K900) Sensor Ground circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. (K857) 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K857) 5 Volt Supply circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 10 . No Repair the (K857) 5 Volt Supply circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
6. (K602) MFV SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between ground and the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 7 . No Repair the (K602) MFV Signal circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
7. (K602) MFV SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K602) MFV Signal circuit and the (K900) Sensor Ground circuit in the Manifold Flow Valve harness connector. Is the resistance above 100 ohms? Yes Go to 8 . No Repair the (K602) MFV Signal circuit for a short to the (K900) Sensor Ground circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
8. (K602) MFV SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K602) MFV Signal circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 9 . No Repair the (K602) MFV Signal circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
9. MANIFOLD FLOW VALVE Turn the ignition off. Connect the Powertrain Control Module (PCM) connector. Connect a jumper wire between the (K857) 5 Volt Supply circuit and the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Turn the ignition on. With the scan tool, read the Manifold Flow Valve signal voltage. Is the voltage above 4.5 volts with the jumper wire in place? Yes Replace the Manifold Flow Valve in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 10 .
10. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Manifold Flow Valve and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the ignition on and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the MFV Position Sensor input voltage is above the maximum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 454

1. DTC IS ACTIVE NOTE: Diagnose and repair any system voltage or sensor reference voltage DTCs before continuing with this test. Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Manifold Flow Valve connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K857) 5 Volt Supply circuit in the Manifold Flow Valve harness connector. Is there any voltage present? Yes Repair the (K857) 5 Volt Supply circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (K602) MFV SIGNAL CIRCUIT SHORTED TO VOLTAGE Measure the voltage of the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Is there any voltage present? Yes Repair the (K602) MFV Signal circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K602) MFV SIGNAL CIRCUIT SHORTED TO THE (K857) 5 VOLT SUPPLY CIRCUIT Measure the resistance between the (K602) MFV Signal circuit and the (K857) 5 Volt Supply in the Manifold Flow Valve harness connector. Is the resistance below 100 ohms? Yes Repair the (K602) MFV Signal circuit for a short to the (K857) 5 Volt Supply circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 5 .
5. (K602) MFV SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Measure the resistance of the (K602) MFV Signal circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 6 . No Repair the (K602) MFV Signal circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
6. (K900) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K900) Sensor Ground circuit between the Manifold Flow Valve harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 7 . No Repair the (K900) Sensor Ground circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
7. MANIFOLD FLOW VALVE Turn the ignition off. Connect the Powertrain Control Module (PCM) connector. Connect a jumper wire between the (K900) Sensor Ground circuit and the (K602) MFV Signal circuit in the Manifold Flow Valve harness connector. Turn the ignition on. With the scan tool, read the Manifold Flow Valve signal voltage. Is the voltage below 1.0 volt with the jumper wire in place? Yes Replace the Manifold Flow Valve in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 8 .
8. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Manifold Flow Valve and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

Scheme 455

1. When Monitored: With engine run time greater than 128 seconds.

1. Set Condition: The PCM detects no change in Fuel Level Sensor 2 circuit voltage over time during monitoring.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 456

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1. DTC IS ACTIVE Turn the ignition on. With the scan tool, select View DTCs and review the DTC environmental information. Is the good trip counter greater than 0? Yes Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure. No Go to 2 .
2. EXTERIOR FUEL TANK DAMAGE Inspect the exterior of the fuel tank for any damage that may restrict the movement of the fuel level sensor floats. Were any problems found? Yes Replace the fuel tank as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go to 3 .
3. FUEL PUMP MODULE WIRING AND CONNECTORS Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Pump Module harness connector and the Instrument Cluster (CCN). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go to 4 .
4. (N5) FUEL LEVEL SIGNAL 2 CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Fuel Pump Module harness connector. Turn the ignition on. With the scan tool, read the Fuel Level Sensor 2 circuit voltage. NOTE: The sensor voltage should be approximately 5.0 volts (plus or minus.1 volt) with connector disconnected. Turn the ignition off. Connect a jumper wire between ground and the (N5) Fuel Level Signal 2 circuit in the Fuel Pump Module harness connector. Turn the ignition on. With the scan tool, read the Fuel Level Sensor 2 circuit voltage. NOTE: The sensor voltage should be approximately 0.0 volts (plus or minus.1 volt) with the jumper wire in place. Does the scan tool display the voltage as described above? Yes Go to 5 . No Go to 11 .
5. (N4) FUEL LEVEL SIGNAL 1 CIRCUIT VOLTAGE With the scan tool, read the Fuel Level Sensor 1 circuit voltage. NOTE: The sensor voltage should be approximately 5.0 volts (plus or minus.1 volt) with connector disconnected. Turn the ignition off. Connect a jumper wire between ground and the (N4) Fuel Level Signal 1 circuit in the Fuel Pump Module harness connector. Turn the ignition on. With the scan tool, read the Fuel Level Sensor 1 circuit voltage. NOTE: The sensor voltage should be approximately 0.0 volts (plus or minus.1 volt) with the jumper wire in place. Does the scan tool display the voltage as described above? Yes Go to 6 . No Go to 14 .
6. (Z965) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Measure the resistance between ground and the (Z965) Ground circuit in the Fuel Pump Module harness connector. Is the resistance below 5 ohms? Yes Go to 7 . No Repair the (Z965) Ground circuit for an open circuit or high resistance. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
7. FUEL TANK WIRING HARNESS INSPECTION WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Failure to follow these instructions can result in personal injury or death. Remove the fuel tank in accordance with the Service Information. Inspect the wiring and connectors between the Fuel Pump Module harness connector and both Fuel Level Sensors. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go to 8 .
8. FUEL LEVEL SENSOR 1 INSPECTION Remove the Fuel Level Sensor 1. Inspect the Fuel Level Sensor 1 and the inside of the fuel tank for any condition that would restrict the movement of the fuel level sensor float. Were any problems found? Yes Repair or replace the fuel tank components as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go to 9 .
9. FUEL LEVEL SENSOR 1 RESISTANCE Move the Fuel Level Sensor 1 float to its lowest point of travel. Measure the resistance between the terminals of Fuel Level Sensor 1. NOTE: The resistance should be approximately 120 ohms with the float at its lowest point of travel (empty). Move the Fuel Level Sensor 1 float to its highest point of travel. Measure the resistance between the terminals of Fuel Level Sensor 1. NOTE: The resistance should be approximately 13 ohms with the float at its highest point of travel (full). Is the resistance of the sensor within the values described above? Yes Go to 10 . No Replace the Fuel Level Sensor 1. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
10. FUEL LEVEL SENSOR 2 INSPECTION Remove the Fuel Level Sensor 2 sensor. Inspect the Fuel Level Sensor 2 and the inside of the fuel tank for any condition that would restrict the movement of the fuel level sensor float. Were any problems found? Yes Repair or replace the fuel tank components as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Replace the Fuel Level Sensor 2. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
11. (N5) FUEL LEVEL SIGNAL 2 CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Instrument Cluster (CCN) connector. Turn the ignition on. Measure the voltage of the (N5) Fuel Level Signal 2 circuit in the Fuel Level Sensor 2 harness connector. Is there any voltage present? Yes Repair the (N5) Fuel Level Signal 2 circuit for a short to voltage. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go to 12 .
12. (N5) FUEL LEVEL SIGNAL 2 CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (N5) Fuel Level Signal 2 circuit in the Fuel Level Sensor 2 harness connector. Is the resistance above 100 ohms? Yes Go to 13 . No Repair the (N5) Fuel Level Signal 2 circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
13. (N5) FUEL LEVEL SIGNAL 2 CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (N5) Fuel Level Signal 2 circuit between the Fuel Level Sensor 2 harness connector and the Instrument Cluster (CCN) harness connector. Is the resistance below 5.0 ohms? Yes Go to 17 . No Repair the (N5) Fuel Level Signal 2 circuit for an open circuit or high resistance. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
14. (N4) FUEL LEVEL SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Instrument Cluster (CCN) connector. Turn the ignition on. Measure the voltage of the (N4) Fuel Level Signal 1 circuit in the Fuel Level Sensor 1 harness connector. Is there any voltage present? Yes Repair the (N4) Fuel Level Signal 1 circuit for a short to voltage. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go to 15 .
15. (N4) FUEL LEVEL SIGNAL 1 CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (N4) Fuel Level Signal 1 circuit in the Fuel Level Sensor 1 harness connector. Is the resistance above 100 ohms? Yes Go to 16 . No Repair the (N4) Fuel Level Signal 1 circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
16. (N4) FUEL LEVEL SIGNAL 1 CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (N4) Fuel Level Signal 1 circuit between the Fuel Level Sensor 1 harness connector and the Instrument Cluster (CCN) harness connector. Is the resistance below 5.0 ohms? Yes Go to 17 . No Repair the (N4) Fuel Level Signal 1 circuit for an open circuit or high resistance. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
17. INSTRUMENT CLUSTER (CCN) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Pump Module and the Instrument Cluster (CCN). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Replace the Instrument Cluster (CCN) in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .

1. When Monitored: With the ignition on and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the Fuel Level Sensor input voltage is below the minimum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: With the ignition on and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the Fuel Level Sensor input voltage is above the maximum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 463

1. DTC IS ACTIVE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (N5) FUEL LEVEL SIGNAL 2 CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Fuel Level Sensor connector. Disconnect the Instrument Cluster (CCN) connector. Turn the ignition on. Measure the voltage of the (N5) Fuel Level Signal 2 circuit in the Fuel Level Sensor harness connector. Is there any voltage present? Yes Repair the (N5) Fuel Level Signal 2 circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (N5) FUEL LEVEL SIGNAL 2 OPEN OR HIGH RESISTANCE Turn the ignition off. Measure the resistance of the (N5) Fuel Level Signal 2 circuit between the Fuel Level Sensor harness connector and the Instrument Cluster (CCN) harness connector. Is the resistance below 5.0 ohms? Yes Go to 4 . No Repair the (N5) Fuel Level Signal 2 circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
4. (Z965) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance between ground and the (Z965) Ground circuit at the Fuel Level Sensor harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (Z965) Ground circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. FUEL LEVEL SENSOR 2 Turn the ignition off. Connect the Instrument Cluster (CCN) connector. Connect a jumper wire between the (N5) Fuel Level Signal 2 circuit and the (Z965) Ground in the Fuel Level Sensor harness connector. Turn the ignition on. With the scan tool, read the Fuel Level Sensor 2 signal voltage. Is the voltage below 1.0 volt with the jumper wire in place? Yes Replace Fuel Level Sensor 2 in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. INSTRUMENT CLUSTER (CCN) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Level Sensor and the Instrument Cluster (CCN). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Instrument Cluster (CCN) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the ignition on and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the throttle plate is stuck during extremely cold ambient temperature operation. The PCM will initiate a throttle de-icing procedure, and if the throttle blade still doesn't move, this DTC will set. The MIL will not illuminate. The vehicle will be in Limp home condition, limiting RPM and vehicle speed.

1. When Monitored: During all drive modes

1. Set Condition: With engine vacuum below 1.5" Hg, engine RPM greater than 2000 RPM, and a closed throttle. One Trip Fault. Three good trips to turn off the MIL.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: With the engine running and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the CMP 1/1 Position Solenoid Control voltage is below the minimum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 464

Scheme 465

Scheme 466

Scheme 467

1. DTC IS ACTIVE Turn the ignition on. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K343) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Camshaft 1/1 Position Solenoid harness connector. Turn the ignition on. Using a 12 volt test light connected to ground, check the (K343) Fused Main Relay Output circuit in the Camshaft 1/1 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to 3 . No Repair the (K343) Fused Main Relay Output circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
3. (K76) CMP 1/1 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between ground and the (K76) CMP 1/1 Control circuit in the Camshaft 1/1 Position Solenoid harness connector. Is the resistance below 100 ohms? Yes Repair the (K76) CMP 1/1 Control circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K76) CMP 1/1 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K76) CMP 1/1 Control circuit between the Camshaft 1/1 Position Solenoid harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K76) CMP 1/1 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. CAMSHAFT 1/1 POSITION SOLENOID Connect the Powertrain Control Module (PCM) connector. Turn the ignition on. With the scan tool, actuate the Camshaft 1/1 Position Solenoid control to the ON (100%) position. Using a 12 volt test light connected to 12 volts, check the (K76) CMP 1/1 Control circuit in the Camshaft 1/1 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright with the control actuated ON (100%). Compare the brightness to that of a direct connection to the battery. With the scan tool, actuate the Camshaft 1/1 Position Solenoid control to OFF (0%). Using a 12 volt test light connected to 12 volts, check the (K76) CMP 1/1 Control circuit in the Camshaft 1/1 Position Solenoid harness connector. NOTE: The test light should not be illuminated with the control actuated OFF (0%). Is the test light illuminated and bright with the control actuated ON and not illuminated with the control actuated OFF? Yes Replace the Camshaft 1/1 Position Solenoid in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Solenoid and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the engine running and battery voltage greater than 10.4 volts.

1. Set Condition: The Powertrain Control Module (PCM) detects that the Camshaft 1/1 Position Solenoid input voltage is above the maximum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 468

Scheme 469

1. DTC IS ACTIVE Turn the ignition on. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K76) CMP 1/1 CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Camshaft 1/1 Position Solenoid connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K76) CMP 1/1 Control circuit in the Camshaft 1/1 Position Solenoid harness connector. Is there any voltage present? Yes Repair the (K76) CMP 1/1 Control circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (K76) CMP 1/1 CONTROL CIRCUIT SHORTED TO THE (K343) FUSED MAIN RELAY OUTPUT CIRCUIT Turn the ignition off. Measure the resistance between the (K76) CMP 1/1 Control circuit and the (K343) Fused Main Relay Output circuit in the Camshaft 1/1 Position Solenoid harness connector. Is the resistance above 100 ohms? Yes Go to 4 . No Repair the (K76) CMP 1/1 Control circuit for a short to the (K343) Fused Main Relay Output circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
4. (K76) CMP 1/1 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K76) CMP 1/1 Control circuit between the Camshaft 1/1 Position Solenoid harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K76) CMP 1/1 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. CAMSHAFT 1/1 POSITION SOLENOID Connect the Powertrain Control Module (PCM) connector. Turn the ignition on. With the scan tool, actuate the Camshaft 1/1 Position Solenoid control to the ON (100%) position. Using a 12 volt test light connected to 12 volts, check the (K76) CMP 1/1 Control circuit in the Camshaft 1/1 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Replace the Camshaft 1/1 Position Solenoid in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Solenoid and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the engine running and battery voltage greater than 10.4 volts.

1. Set Condition: The PCM detects that the Camshaft 1/2 Position Solenoid input voltage is below the minimum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 470

Scheme 471

Scheme 472

Scheme 473

1. DTC IS ACTIVE Turn the ignition on. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K343) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Camshaft 1/2 Position Solenoid harness connector. Turn the ignition on. Using a 12 volt test light connected to ground, check the (K343) Fused Main Relay Output circuit in the Camshaft 1/2 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to 3 . No Repair the (K343) Fused Main Relay Output circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
3. (K276) CMP 1/2 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between ground and the (K276) CMP 1/2 Control circuit in the Camshaft 1/2 Position Solenoid harness connector. Is the resistance below 100 ohms? Yes Repair the (K276) CMP 1/2 Control circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K276) CMP 1/2 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K276) CMP 1/2 Control circuit between the Camshaft 1/2 Position Solenoid harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K276) CMP 1/2 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. CAMSHAFT 1/2 POSITION SOLENOID Connect the Powertrain Control Module (PCM) connector. Turn the ignition on. With the scan tool, actuate the Camshaft 1/2 Position Solenoid control to the ON (100%) position. Using a 12 volt test light connected to 12 volts, check the (K276) CMP 1/2 Control circuit in the Camshaft 1/2 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright with the control actuated ON (100%). Compare the brightness to that of a direct connection to the battery. With the scan tool, actuate the Camshaft 1/2 Position Solenoid control to OFF (0%). Using a 12 volt test light connected to 12 volts, check the (K276) CMP 1/2 Control circuit in the Camshaft 1/2 Position Solenoid harness connector. NOTE: The test light should not be illuminated with the control actuated OFF (0%). Is the test light illuminated and bright with the control actuated ON and not illuminated with the control actuated OFF? Yes Replace the Camshaft 1/2 Position Solenoid in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Solenoid and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the engine running and battery voltage greater than 10.4 volts.

1. Set Condition: The Powertrain Control Module (PCM) detects that the Camshaft 1/2 Position Solenoid input voltage is above the maximum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 474

Scheme 475

1. DTC IS ACTIVE Turn the ignition on. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. (K276) CMP 1/2 CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Camshaft 1/2 Position Solenoid connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K276) CMP 1/2 Control circuit in the Camshaft 1/2 Position Solenoid harness connector. Is there any voltage present? Yes Repair the (K276) CMP 1/2 Control circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (K276) CMP 1/2 CONTROL CIRCUIT SHORTED TO THE (K343) FUSED MAIN RELAY OUTPUT CIRCUIT Turn the ignition off. Measure the resistance between the (K276) CMP 1/2 Control circuit and the (K343) Fused Main Relay Output circuit in the Camshaft 1/2 Position Solenoid harness connector. Is the resistance above 100 ohms? Yes Go to 4 . No Repair the (K276) CMP 1/2 Control circuit for a short to the (K343) Fused Main Relay Output circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
4. (K276) CMP 1/2 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K276) CMP 1/2 Control circuit between the Camshaft 1/2 Position Solenoid harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K276) CMP 1/2 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. CAMSHAFT 1/2 POSITION SOLENOID Connect the Powertrain Control Module (PCM) connector. Turn the ignition on. With the scan tool, actuate the Camshaft 1/2 Position Solenoid control to the ON (100%) position. Using a 12 volt test light connected to 12 volts, check the (K276) CMP 1/2 Control circuit in the Camshaft 1/2 Position Solenoid harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Replace the Camshaft 1/2 Position Solenoid in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Solenoid and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the engine running in closed loop, the ambient/battery temperature above -7° C (20° F) and altitude below 8500 ft.

1. Set Condition: The conditions that cause this diagnostic to fail is when the upstream O2 sensor becomes biased from an exhaust leak, O2 sensor contamination, or some other extreme operating condition. The downstream O2 sensor is considered to be protected from extreme environments by the catalyst. The PCM monitors the downstream O2 sensor feedback control, called downstream fuel trim, to detect any shift in the upstream O2 sensor target voltage from nominal target voltage. The value of the downstream fuel trim is compared with the lean thresholds. Every time the value exceeds the calibrated threshold, a fail timer is increment and mass flow through the exhaust is accumulated. If the fail timer and accumulated mass flow exceed the fail thresholds, the test fails and the diagnostic stops running for that trip. If the test fails on consecutive trips, a DTC is set.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: With the engine running in closed loop, the ambient/battery temperature above -7° C (20° F) and altitude below 8500 ft.

1. Set Condition: The conditions that cause this diagnostic to fail is when the upstream O2 sensor becomes biased from an exhaust leak, O2 sensor contamination, or some other extreme operating condition. The downstream O2 sensor is considered to be protected from extreme environments by the catalyst. The PCM monitors the downstream O2 sensor feedback control, called downstream fuel trim, to detect any shift in the upstream O2 sensor target voltage from nominal target voltage. The value of the downstream fuel trim is compared with the rich thresholds. Every time the value exceeds the calibrated threshold, a fail timer is increment and mass flow through the exhaust is accumulated. If the fail timer and accumulated mass flow exceed the fail thresholds, the test fails and the diagnostic stops running for that trip. If the test fails on consecutive trips, a DTC is set.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: With the ignition on and the ETC Motor not in Limp Home mode.

1. Set Condition: When the PCM detects an internal error or short between the ETC Motor (-) and ETC Motor (+) circuits in the ETC Motor Driver. One trip fault. ETC light is flashing.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 476

Scheme 477

Scheme 478

Scheme 479

Scheme 480

Scheme 481

Scheme 482

1. DTC IS ACTIVE NOTE: If this DTC sets intermittently, it is possible that the controller is overheating in extremely hot temperatures. This is considered a normal protection operation. No repair is necessary. NOTE: Low battery voltage can cause excessive current draw in very hot and cold ambient temperatures. Make sure the battery can pass a load test before continuing. Review Freeze Frame information to determine the ambient temperature when the DTC set. 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 can result in personal injury or death. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to 2 . No Refer to the «*CHECKING FOR AN INTERMITTENT CONDITION»(ref-304395-S28853819902008110700000) Diagnostic Procedure.
2. THROTTLE PLATE INSPECTION Turn the ignition off. Remove the air cleaner assembly. Check for any signs of a foreign material (ice or dirt) on the throttle plate or in the throttle bore that can cause the throttle plate to stick. Were any problems found? Yes Remove the debris if possible or replace the Throttle Body Assembly. Disconnect the Battery when replacing the Throttle Body Assembly. After installation is complete, use a scan tool and select the ETC RELEARN function. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (K124) ETC MOTOR (+) CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Throttle Body harness connector. Disconnect the PCM harness connectors. Turn the ignition on. Measure the voltage of the (K124) ETC Motor (+) circuit. Is there any voltage present? Yes Repair the (K124) ETC Motor (+) circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K126) ETC MOTOR (-) CIRCUIT SHORTED TO VOLTAGE Measure the voltage of the (K126) ETC Motor (-) circuit. Is there any voltage present? Yes Repair the (K126) ETC Motor (-) circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 5 .
5. (K124) ETC MOTOR (+) CIRCUIT SHORTED TO THE (K126) ETC MOTOR (-) CIRCUIT Turn the ignition off. Measure the resistance between the (K124) ETC Motor (+) circuit and the (K126) ETC Motor (-) circuit. Is the resistance below 100 ohms? Yes Repair the short to between the (K124) ETC Motor (+) circuit and the (K126) ETC Motor (-) circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. (K124) ETC MOTOR (+) CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K124) ETC Motor (+) circuit. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K124) ETC Motor (+) circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 7 .
7. (K126) ETC MOTOR (-) CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K126) ETC Motor (-) circuit. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K126) ETC Motor (-) circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 8 .
8. (K126) ETC MOTOR (-) CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K126) ETC Motor (-) circuit. Is the resistance below 5.0 ohms? Yes Go to 9 . No Repair the (K126) ETC Motor (-) circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
9. (K124) ETC MOTOR (+) CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K124) ETC Motor (+) circuit. Is the resistance below 5.0 ohms? Yes Go to 10 . No Repair the (K124) ETC Motor (+) circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
10. ETC MOTOR Reconnect the Throttle Body harness connector. NOTE: Measure the resistance at the PCM harness connector to avoid damaging throttle body connector terminals. Measure the resistance between the (K124) ETC Motor (+) circuit and the (K126) ETC Motor (-) circuit. Is the resistance between 2.5 and 25 ohms at closed throttle? Yes Go to 11 . No Replace the Throttle Body Assembly. Disconnect the Battery when replacing the Throttle Body Assembly. After installation is complete, use a scan tool and perform the ETC RELEARN function. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
11. 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. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Replace and program the Powertrain Control Module per Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .

1. When Monitored: With the engine running, ETC motor not in limp home mode, and TPS adaptation complete.

1. Set Condition: The PCM detects too large of an error between the actual position of the throttle plate and the desired set point. One trip fault. The DTC will set within 5 seconds. Three good trips to turn off the MIL ETC light is flashing.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Ignition on and ETC motor is working.

1. Set Condition: When the PCM detects an ETC error and requests to limit engine speed. One trip fault and the code will set within 5 seconds. ETC light is illuminated.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: With the ignition on.

1. Set Condition: The PCM detects that torque demand has exceeded the maximum torque reserve threshold. The PCM may continuously attempt to learn the throttle parameters. The vehicle may not be drivable. One trip fault. ETC light will flash.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Ignition on.

1. Set Condition: The PCM has detected that the actual throttle position is not within the calibrated range of the calculated position. Vehicle may exhibit an extended cranking condition, limited performance, and a rough idle. One trip fault and the code will set within 5 seconds. ETC light is flashing.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Ignition on and ETC motor is working.

1. Set Condition: When the PCM requests to limit engine speed if PWM is too high for 20.5 seconds and before P2118 sets. One trip fault and the code will set within 5 seconds. ETC light is illuminated.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Ignition on and battery voltage greater than 10 volts.

1. Set Condition: Just after key on, the throttle is opened and closed to test the system. If the PCM detects that the TP Sensor does not return to Limp Home Position, this DTC will set. One trip fault. The DTC will set within 5 seconds. ETC light is flashing.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Ignition on and battery voltage greater than 10 volts.

1. Set Condition: Just after key on, the throttle is opened and closed to test the system. If the PCM detects that the TP Sensor does not move from Limp Home Position, this DTC will set. One trip fault. The DTC will set within 5 seconds. ETC light is flashing.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: With the igniting on. During in-plant testing, the APPS is checked to make sure the minimum and maximum values can be reached. The PCM performs the diagnostic test for this DTC after the diagnostic test for P2166 has passed.

1. Set Condition: APPS 1 has failed to achieve the required minimum value during In-Plant testing. One trip fault and the code will set within 5 seconds. Engine will only idle.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: With the igniting on. During in-plant testing, the APPS is checked to make sure the minimum and maximum values can be reached. The PCM performs the diagnostic test for this DTC after the diagnostic test for P2167 has passed.

1. Set Condition: APPS 2 has failed to achieve the required minimum value during In-Plant testing. One trip fault and the code will be stored within 5 seconds. Engine will only idle.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .