Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
- Turn the ignition switch ON (II).
- Clear the DTC with the HDS.
- Start the engine, and let it idle 10 seconds.
- Check the CMP NOISE count in the DATA LIST with the HDS. Are 0 counts indicated? YES - Go to step 7 . NO - Go to step 5 .
- Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters: ENGINE SPEED VSS
- Check the CMP NOISE count in the DATA LIST with the HDS. Are 0 counts indicated? YES - Go to step 7 . NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the CMP sensor and the ECM/PCM.
- Check for poor or loose connections and terminals at these locations: CMP sensor ECM/PCM Engine ground Body ground Are the connections and terminals OK? YES - Go to step 8 . NO - Repair the connectors or terminals, then go to step 11 .
- Check for damage to the CMP pulse plate (see «CMP PULSE PLATE REMOVAL AND INSTALLATION»(ref-291404-S41677698992008072800000) ). Is the pulse plate damaged? YES - Replace the CMP pulse plate (see «CMP PULSE PLATE REMOVAL AND INSTALLATION»(ref-291404-S41677698992008072800000) ), then go to step 11 . NO - Go to step 9 .
- Turn the ignition switch OFF.
- Replace the CMP sensor (see «CMP SENSOR REPLACEMENT»(ref-291411-S27543587302008072800000) ).
- Turn the ignition switch ON (II).
- Reset the ECM/PCM with the HDS.
- Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-291413-S23447131872008072800000) ).
- Start the engine, and let it idle 10 seconds.
- Check for Temporary DTCs or DTCs with the HDS. Is DTC P0369 indicated? YES - Check for poor connections or loose terminals at the CMP sensor and the ECM/PCM, then go to step 1 . NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.