DTC Troubleshooting: P0344
DTC P0344: CMP Sensor A Circuit Intermittent Interruption
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0344 CMP Sensor A Circuit Intermittent Interruption
      

1.
Problem verification (idling):

Problem verification (idling)
?1.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?2.
Clear the DTC with the HDS.


?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):

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 CMP sensor A and the PCM. If the HDS indicates NOT COMPLETED, retest and check the OBD STATUS again.?
3.
CMP sensor A circuit connectors and terminals condition check:

CMP sensor A circuit connectors and terminals condition check
?1.
Check for poor connections or loose terminals at these locations:
CMP sensor A
PCM
Engine ground
Body ground

Are the connections and terminals OK?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Repair the connections or terminals, then do the repair verification.
4.
CMP pulse plate A visual check:

CMP pulse plate A visual check
?1.
Remove the cylinder head cover, then check for damage to CMP pulse plate A.

Is the pulse plate damaged?

     
YES
     
     
     
     
NO
     
     
     
Repair verification:

?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Reconnect all connectors.

?3.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?4.
Reset the PCM with the HDS.


?5.
Do the PCM idle learn procedure.

?6.
Start the engine, and let it idle for 10 seconds, or test-drive the vehicle for several minutes under the freeze data conditions (same as step 2-1).

?7.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0344 CMP Sensor A Circuit Intermittent Interruption
      


Is DTC P0344 indicated?

     
YES
     
     
     
Check for poor connections or loose terminals at CMP sensor A and the 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.?