Dtcs P2307 to U1417: 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 Powertrain Control Module (PCM) detects that the Coil 3 Control voltage is above the maximum acceptable value.

Possible Causes

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 566

Scheme 567

Scheme 568

Scheme 569

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. (K18) COIL 3 CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Ignition Coil 3 connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K18) Coil 3 Control circuit in the Ignition Coil 3 harness connector. Is there any voltage present? Yes Repair the (K18) Coil 3 Control circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (K18) COIL 3 CONTROL CIRCUIT SHORTED TO THE (K344) FUSED MAIN RELAY OUTPUT CIRCUIT Turn the ignition off. Measure the resistance between the (K18) Coil 3 Control circuit and the (K344) Fused Main Relay Output circuit in the Ignition Coil 3 harness connector. Is the resistance above 100 ohms? Yes Go to 4 . No Repair the (K18) Coil 3 Control circuit for a short to the (K344) Fused Main Relay Output circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
4. (K18) COIL 3 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K18) Coil 3 Control circuit between the Ignition Coil 3 harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K18) Coil 3 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. IGNITION COIL 3 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. Connect the Powertrain Control Module (PCM) connector. Using a 12 volt test light connected to 12 volts, check the (K18) Coil 3 Control circuit in the Ignition Coil 3 harness connector. Crank the engine for 5 seconds. NOTE: The test light should blink each time the circuit is activated by the PCM. Does the test light blink each time the circuit is activated by the PCM? Yes Replace the Ignition Coil 3 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 Ignition Coil 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. 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 secondary ignition burn time is incorrect or not present. One Trip Fault.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 570

Scheme 571

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. (K344) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Ignition Coil 3 harness connector. Turn the ignition on. Using a 12 volt test light connected to ground, check the (K344) Fused Main Relay Output circuit in the Ignition Coil 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 3 . No Repair the (K344) Fused Main Relay Output circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
3. (K18) COIL 3 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between ground and the (K18) Coil 3 Control circuit in the Ignition Coil 3 harness connector. Is the resistance below 100 ohms? Yes Repair the (K18) Coil 3 Control circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K18) COIL 3 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K18) Coil 3 Control circuit between the Ignition Coil 3 harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K18) Coil 3 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. IGNITION COIL 3 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. Connect the Powertrain Control Module (PCM) connector. Using a 12 volt test light connected to 12 volts, check the (K18) Coil 3 Control circuit in the Ignition Coil 3 harness connector. Crank the engine for 5 seconds. NOTE: The test light should blink each time the circuit is activated by the PCM. Does the test light blink each time the circuit is activated by the PCM? Yes Replace the Ignition Coil 3 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 Ignition Coil 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. 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 Coil 4 Control voltage is above the maximum acceptable value.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 572

Scheme 573

Scheme 574

Scheme 575

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. (K15) COIL 4 CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Ignition Coil 4 connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K15) Coil 4 Control circuit in the Ignition Coil 4 harness connector. Is there any voltage present? Yes Repair the (K15) Coil 4 Control circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. (K15) COIL 4 CONTROL CIRCUIT SHORTED TO THE (K344) FUSED MAIN RELAY OUTPUT CIRCUIT Turn the ignition off. Measure the resistance between the (K15) Coil 4 Control circuit and the (K344) Fused Main Relay Output circuit in the Ignition Coil 4 harness connector. Is the resistance above 100 ohms? Yes Go to 4 . No Repair the (K15) Coil 4 Control circuit for a short to the (K344) Fused Main Relay Output circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
4. (K15) COIL 4 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K15) Coil 4 Control circuit between the Ignition Coil 4 harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K15) Coil 4 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. IGNITION COIL 4 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. Connect the Powertrain Control Module (PCM) connector. Using a 12 volt test light connected to 12 volts, check the (K15) Coil 4 Control circuit in the Ignition Coil 4 harness connector. Crank the engine for 5 seconds. NOTE: The test light should blink each time the circuit is activated by the PCM. Does the test light blink each time the circuit is activated by the PCM? Yes Replace the Ignition Coil 4 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 Ignition Coil 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. 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 secondary ignition burn time is incorrect or not present. One Trip Fault.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 576

Scheme 577

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. (K344) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Ignition Coil 4 harness connector. Turn the ignition on. Using a 12 volt test light connected to ground, check the (K344) Fused Main Relay Output circuit in the Ignition Coil 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 3 . No Repair the (K344) Fused Main Relay Output circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
3. (K15) COIL 4 CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Measure the resistance between ground and the (K15) Coil 4 Control circuit in the Ignition Coil 4 harness connector. Is the resistance below 100 ohms? Yes Repair the (K15) Coil 4 Control circuit for a short to ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K15) COIL 4 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K15) Coil 4 Control circuit between the Ignition Coil 4 harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 5 . No Repair the (K15) Coil 4 Control circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
5. IGNITION COIL 4 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. Connect the Powertrain Control Module (PCM) connector. Using a 12 volt test light connected to 12 volts, check the (K15) Coil 4 Control circuit in the Ignition Coil 4 harness connector. Crank the engine for 5 seconds. NOTE: The test light should blink each time the circuit is activated by the PCM. Does the test light blink each time the circuit is activated by the PCM? Yes Replace the Ignition Coil 4 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 Ignition Coil 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. 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 578

1. When Monitored: With the engine speed greater than 1157 RPM.

1. Set Condition: The PCM detects that battery voltage is 1 volt below charging goal voltage for 13.47 seconds. The PCM compares sensed battery voltage with the field driver on and off. If the voltages are the same, this code will set. One Trip Fault. Three good trips to turn off the MIL.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 579

Scheme 580

Scheme 581

Scheme 582

1. DTC IS ACTIVE NOTE: Inspect the vehicle for aftermarket accessories that may exceed the generator system output. NOTE: Inspect the condition and tension of the generator belt before continuing. NOTE: Inspect the battery before continuing. Ignition on, engine not running. With a scan tool, select View DTCs. Record DTC and Freeze Frame information With a scan tool, clear DTCs. Start the engine and allow it to reach operating temperature. 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. EXCESSIVE RESISTANCE IN THE B(+) CIRCUIT 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. NOTE: Make sure all test equipment and cables are clear of any belts, pulleys, or other moving parts. Monitor the voltage between the generator B(+) output terminal and the battery positive (+) post. Start the engine. Is the voltage above 0.4 volts? Yes Repair the battery positive (+) circuit between the generator and battery for high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. EXCESSIVE RESISTANCE BETWEEN THE GENERATOR CASE AND GROUND 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. NOTE: Make sure all test equipment and cables are clear of any belts, pulleys, or other moving parts. Monitor the voltage between the generator case and battery ground (-) post. Start the engine and allow it to reach operating temperature. Is the voltage above 0.1 volts? Yes Repair the excessive resistance in the Generator Case Ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (K20) GEN FIELD CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Generator harness connector. Disconnect the Powertrain Control Module (PCM) harness connector. Turn the ignition on. Measure the voltage of the (K20) Gen Field Control circuit. Is there any voltage present? Yes Repair the (K20) Gen Field Control circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 5 .
5. (K20) GEN FIELD CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (K20) Gen Field Control circuit in the Generator harness connector. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K20) Gen Field Control circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. (K20) GEN FIELD CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K20) Gen Field Control circuit between the Generator harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 7 . No Repair the open in the (K20) Gen Field Control circuit. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
7. (A804) GEN SENSE CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (A804) Gen Sense between the Generator harness connector and the Powertrain Control Module (PCM) harness connector. Is the resistance below 5.0 ohms? Yes Go to 8 . No Repair the (A804) Gen Sense circuit for an open circuit or high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) .
8. GENERATOR Turn the ignition off. Connect the Powertrain Control Module (PCM) harness connector. Turn the ignition on. With a scan tool, actuate the Generator Field to toggle on and off. Using a 12-volt test light connected to ground, check the (K20) Gen Field Control in the Generator harness connector. NOTE: The test light should be illuminated and bright when toggled on. Compare the brightness to that of a direct connection to the battery. Does the test light toggle on and off correctly during the actuator test? Yes Replace the Generator in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 9 .
9. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Generator 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 engine speed greater than 1157 RPM.

1. Set Condition: The PCM compares sensed battery voltage with the Generator Sense circuit voltage. If the Generator Sense circuit voltage if greater than sensed battery voltage, this DTC will set. One Trip Fault. Three good trips to turn off the MIL.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 583

1. DTC IS ACTIVE NOTE: Inspect the vehicle for aftermarket accessories that may exceed the Generator system output. NOTE: Inspect the Generator harness connector and the Generator eyelet for corrosion or damage before continuing. NOTE: Inspect the condition and tension of the Generator belt before continuing. NOTE: Inspect the battery before continuing. Ignition on, engine not running. With a scan tool, select View DTCs. Record DTC and Freeze Frame information With a scan tool, clear DTCs. Start the engine and allow it to reach operating temperature. 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. EXCESSIVE RESISTANCE IN THE B(+) CIRCUIT 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. NOTE: Make sure all test equipment and cables are clear of any belts, pulleys, or other moving parts. Monitor the voltage between the generator B(+) output terminal and the battery positive (+) post. Start the engine. Is the voltage above 0.4 volts? Yes Repair the battery positive (+) circuit between the generator and battery for high resistance. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 3 .
3. EXCESSIVE RESISTANCE BETWEEN THE GENERATOR CASE AND GROUND 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. NOTE: Make sure all test equipment and cables are clear of any belts, pulleys, or other moving parts. Monitor the voltage between the generator case and battery ground (-) post. Start the engine and allow it to reach operating temperature. Is the voltage above 0.1 volts? Yes Repair the excessive resistance in the Generator case ground. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 4 .
4. (A804) GEN SENSE CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Generator harness connector. Disconnect the Powertrain Control Module (PCM) harness connector. Turn the ignition on. Measure the voltage of the (A804) Gen Sense circuit. Is there any voltage present? Yes Repair the (A804) Gen Sense circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 5 .
5. (K20) GEN FIELD CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Generator harness connector. Disconnect the Powertrain Control Module (PCM) harness connector. Turn the ignition on. Measure the voltage of the (K20) Gen Field Control circuit. Is there any voltage present? Yes Repair the (K20) Gen Field Control circuit for a short to voltage. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 6 .
6. GENERATOR 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. Turn the ignition off. Connect the Generator harness connector. Connect the Powertrain Control Module (PCM) harness connector. NOTE: Make sure all test equipment and cables are clear of any belts, pulleys, or other moving parts. Measure the voltage between the Generator Eyelet terminal and the (A804) Gen Sense circuit in the Generator harness connector. Start the engine and allow it to reach operating temperature. Is the voltage above 0.1 volts? Yes Replace the Generator in accordance with the Service Information. Perform «PCM VERIFICATION TEST»(ref-304396-S07357759032008110700000) . No Go to 7 .
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Generator 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: Continuously.

1. Set Condition: The PCM has detected an interruption in the supplied battery voltage while the module is powered down. Two Trip Fault. Three good trips to turn off the MIL.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM loses communication over the CAN C Bus circuit. The circuit is continuously monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM doesn't receive a Bus Message from the Transmission Control Module for 7 consecutive seconds. The circuit is continuously monitored.

Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM doesn't receive an ABS message over the CAN C circuit for 7 consecutive seconds. The circuit is continuously monitored.

Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts.

1. Set Condition: The PCM doesn't receive a FCM message over the CAN C bus for 7 consecutive seconds. The circuit is continuously monitored.

Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts.

1. Set Condition: The PCM doesn't receive a message from the TIPM over the CAN C circuit for 7 consecutive seconds. The circuit is continuously monitored.

Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM doesn't receive a Cluster message over the CAN C circuit for 7 consecutive seconds. The circuit is continuously monitored.

Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM doesn't receive a SKREEM message over the CAN C circuit for 7 consecutive seconds. The circuit is continuously monitored.

Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

1. When Monitored: Continuously while the system is active.

1. Set Condition: Implausible data has been received over the bus from the Transmission Control Module (TCM).

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Continuously while the system is active.

1. Set Condition: Implausible data has been received over the bus from the Front Control Module (FCM).

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

1. When Monitored: Ignition on.

1. Set Condition: When the PCM does not receive a fuel level signal over the CAN C circuit. The circuit is constantly monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The fuel level signal is a direct input to the Cluster. The fuel level signal is sent to the TIPM over the CAN B bus circuit. The PCM receives the fuel level signal from the TIPM over the CAN C bus circuit.

1. When Monitored: Ignition on.

1. Set Condition: The PCM doesn't receive the ambient temperature signal over the CAN C bus from the TIPM. The circuit is continuously monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The ambient temperature sensor signal is a direct input to the TIPM. The TIPM sends the PCM the ambient temperature signal over the CAN C bus.

1. When Monitored: Ignition on.

1. Set Condition: When the PCM does not receive a fuel volume signal from the TIPM over the CAN C circuit. The circuit is constantly monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The fuel level signal is a direct input to the Cluster. The fuel level signal is sent to the TIPM over the CAN B bus circuit. The PCM receives the fuel level signal from the TIPM over the CAN C bus circuit.

1. When Monitored: Ignition on.

1. Set Condition: The PCM doesn't receive a vehicle speed signal from the Anti-Lock Brake Module over the CAN C bus.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The PCM receives the vehicle speed signal over the CAN C bus from the Anti-lock Brake Module.

1. When Monitored: Ignition on.

1. Set Condition: The PCM doesn't receive the A/C Pressure signal over the CAN C bus from the TIPM. The circuit is continuously monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The A/C Pressure Transducer signal is a direct input to the TIPM. The TIPM sends the PCM the A/C pressure signal over the CAN C bus.

1. When Monitored: Ignition on.

1. Set Condition: The PCM doesn't receive a vehicle speed signal from the Anti-lock brake Module over the CAN C bus.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The PCM receives the vehicle speed signal over the CAN C bus from the Anti-lock Brake Module.

1. When Monitored: Ignition on.

1. Set Condition: The fuel level message that the PCM is receiving is implausible. The circuit is continuously monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The TIPM receives a fuel level signal over CAN B from the Cluster. The TIPM transmits the fuel level message to the PCM over the CAN C bus.

1. When Monitored: Ignition on.

1. Set Condition: The fuel volume message the PCM is receiving is implausible. The circuit is continuously monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The Front Control Module isn't receiving a fuel volume signal over CAN B from the Cluster Module. The TIPM has to send the PCM a fuel volume signal over CAN C. The signal the TIPM sends over CAN C is implausible.

1. When Monitored: Ignition on.

1. Set Condition: The PCM gets an implausible signal over the CAN C circuit from the ABS Module. The circuit is continuously monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The ABS Module sends vehicle speed information over the CAN C Bus circuit to the PCM.

1. When Monitored: Ignition on.

1. Set Condition: The PCM gets an implausible signal over the CAN C circuit from the ABS Module. The circuit is continuously monitored.

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The ABS Module sends an implausible distance signal over the CAN C Bus circuit to the PCM.