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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (On-Board Diagnostic [Engine Controls MZI 3.7] (3 Of 5)) >> DTC P0315:00 >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.
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 REPAIR INFORMATION AVAILABILITY 
  • Verify related Service Bulletins and/or on-line repair information availability.
  • Is any related Service Bulletins available?
 Yes Perform repair or diagnosis according to the available Service Bulletins.
  • 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 
  • Switch the ignition to 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 .)
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.
  • Switch the ignition to ON (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.

Go to the next step.
No Go to the next step.
7 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE .)
No Troubleshooting completed.
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