DTC P0344: CMP Sensor A Circuit Intermittent Interruption
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Start the engine, and let it idle for 10 seconds.
- Monitor the OBD STATUS for DTC P0344 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES -Go to step 7.
NO -If the HDS indicates PASSED, go to step 5. If the HDS indicates NOT COMPLETED, keep idling until a result comes on.
- Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
- ENGINE SPEED
- VEHICLE SPEED
- Monitor the OBD STATUS for DTC P0344 in the DTCs MENU with the HDS.
Are 0 counts indicated?
YES -Go to step 7.
NO -If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at CMP sensor A and the PCM. If the HDS indicates NOT COMPLETED, go to step 5 and recheck.
- Check for poor connections or loose 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 connections or terminals, then go to step 11.
- Check for damage on CMP pulse plate A (see
CMP PULSE PLATE A REPLACEMENT
).
Is the pulse plate damaged?
YES -Replace CMP pulse plate A (see CMP PULSE PLATE A REPLACEMENT ), then go to step 11.
NO -Go to step 9.
- Turn the ignition switch to LOCK (0).
- Replace CMP sensor A (see CMP SENSOR A REPLACEMENT ).
- Turn the ignition switch to ON (II).
- Reset the ECM/PCM with the HDS.
- Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
- Start the engine, and let it idle for 10 seconds.
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0344 indicated?
YES -Check for poor connections or loose terminals at CMP sensor A and the ECM/PCM, then go to step 1.
NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC'S TROUBLESHOOTING .