LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 630 (On-Board Diagnostic (Engine Control System MZI-3.7) (3 Of 5)) >> DTC P0315:00 [MZI-3.7] >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
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 [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 El 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 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 Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZI-3.7] .)
No Go to the next step.
7 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.7] .)
No Troubleshooting completed.
scientia non olet · About LEMON Manuals