DTC P0315:00 [MZI-3.7]

id0102d2312900

DTC P0315:00

CKP system variation not learned
DETECTION CONDITION
•  The PCM is unable to learn and correct for mechanical inaccuracies in the crankshaft pulse wheel tooth spacing. This DTC disables the misfire monitor.
POSSIBLE CAUSE
•  Crankshaft pulse wheel teeth malfunction
•  CKP sensor malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING CODE OR STORED DTCs
•  Turn the ignition switch off then to the ON position (Engine off).
•  Verify related pending code or stored DTCs.
•  Are other DTCs present?
Yes
Go to the appropriate DTC troubleshooting.
(See DTC TABLE [MZI-3.7].)
No
Go to the next step.
4
INSPECT PHYSICAL CONDITION OF CRANKSHAFT PULSE WHEEL
Note
•  DTC P0315:00 is set when the PCM is unable to learn and correct for the mechanical variations in the crankshaft pulse wheel tooth spacing (the allowable correction tolerances are exceeded).
•  Inspect the crankshaft pulse wheel for damaged teeth.
•  Inspect the crankshaft pulse wheel for wobble.
•  Check for a loose crankshaft pulse wheel.
•  Check the CKP sensor for damage.
•  Are the CKP sensor and crankshaft pulse wheel normal?
Yes
Go to the next step.
No
Repair if necessary. Then go to Step 6.
5
INSPECT DAMPER AND PULLEY ASSEMBLY
Note
•  This step is for engines that have damper mounted pulse rings. Remove the front cover if necessary to observe the crank pulley.
•  Observe the crank pulley for wobble.
•  Examine the EI pulse ring fastened to the harmonic dampener.
•  Does the crank pulley wobble or is the pulse ring loose or damaged?
Yes
Disconnect the negative battery terminal for 5 min to allow the PCM to learn the new profile. Install a new pulley or damper assembly. Then go to the next step.
No
Go to the next step.
6
VERIFY TROUBLESHOOTING OF DTC P0315:00 HAS BEEN COMPLETED
•  Verify that all disconnected connectors are reconnected.
•  Turn the ignition switch to the ON position (Engine off).
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine and run it at idle.
•  Retrieve DTCs using the M-MDS.
•  Is the PENDING CODE for this DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.7].)
No
Troubleshooting completed.