DTC Troubleshooting

DTC P0344: CMP Sensor Intermittent Interruption

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot. and review the general troubleshooting information.

1. Clear the DTC with the HDS.
2. Start the engine, and let it idle 10 seconds.
3. Check the CMP NOISE 2 count in the DATA LIST with the HDS.

Are 0 counts indicated?

YES - Go to step 6.

NO - Go to step 4.

4. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
- ENGINE SPEED
- VSS

5. Check the CMP NOISE 2 count in the DATA LIST with the HDS.

Are 0 counts indicated?

YES - Go to step 6.

NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the CMP sensor and the PCM.

6. Check for poor or loose connections at these connectors and terminals:
- CMP sensor
- PCM
- Engine ground
- Body ground

Are the connections OK?

YES - Go to step 7.

NO - Reconnect or repair the connectors or terminals, then Go to step 10.

7. Check for damage to the CMP sensor pulse projection on the front camshaft pulley.

Is there damage?

YES - Replace the front camshaft pulley. Then Go to step 10.

NO - Go to step 9.

8. Turn the ignition switch OFF.
9. Replace the CMP sensor.
10. Turn the ignition switch ON (II).
11. Reset the PCM with the HDS.
12. Clear the CKP pattern with the HDS.
13. Do the PCM idle learn procedure.
14. Do the CKP pattern learn procedure.
15. Start the engine, and let it idle 10 seconds.
16. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0344 indicated?

YES - Check for poor connections or loose terminals at the CMP sensor and the PCM, then Go to step 1.

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, Go to the indicated DTC's troubleshooting.