DTC P0344: CMP Sensor A Circuit Intermittent Interruption

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or How to Troubleshoot the CVT System (CVT) .

DTC (PGM-FI)

1. Problem verification (idling):

   - 1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or How to Troubleshoot the CVT System (CVT) .

   - 3. Start the engine, and let it idle for 10 seconds.

   - 4. Monitor the OBD STATUS for DTC P0344 in the DTCs MENU with the HDS.

   DTC Description	OBD STATUS
   P0344 CMP Sensor A Circuit Intermittent Interruption

   Does the HDS indicate FAILED?

   YES 

   The failure is duplicated. Go to step 3.

   NO 

   If the HDS indicates PASSED, go to step 2. If the HDS indicates NOT COMPLETED, keep idling until a result comes on.

2. Problem verification (test-drive):

   - 1. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:

   • ENGINE SPEED
   • VEHICLE SPEED

   - 2. Monitor the OBD STATUS for DTC P0344 in the DTCs MENU with the HDS.

   DTC Description	OBD STATUS
   P0344 CMP Sensor A Circuit Intermittent Interruption

   Does the HDS indicate FAILED?

   YES 

   The failure is duplicated. Go to step 3.

   NO 

   If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the CMP sensor and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot. If the HDS indicates NOT COMPLETED, retest and check the OBD STATUS again.

3. CMP sensor circuit connectors and terminals condition check:

   - 1. Check for poor connections or loose terminals at these locations:

   • CMP sensor
   • PCM
   • Engine ground
   • Body ground

   Are the connections and terminals OK?

   YES 

   Go to step 4.

   NO 

   Repair the connections or terminals.

4. CMP pulse plate visual check:

   - 1. Remove the cylinder head cover , then check for damage to the CMP pulse plate on the intake camshaft.

   Is the pulse plate damaged?

   YES 

   Replace the intake camshaft .

   NO 

   Replace the CMP sensor .