FixVault

Diagnostic procedure

DIAGNOSTIC PROCEDURE CHART

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 
  • 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 .)
No Go to the next step.
4 INSPECT CKP SENSOR SIGNAL SENT TO PCM 
NOTE:
  • The battery should be fully charged and the starting system should be functioning properly.

  • Disable the inertia switch.
  • Turn the ignition switch to the ON position (Engine off)
  • Access the PCM and monitor the RPM PID.
  • Crank the engine.
  • Is the RPM greater than 150 RPM?
Yes Go to the next step.
No Inspect the CKP sensor or related harness. Repair or replace suspected part, then go to the next step.
5 INSPECT FOR CORRECT PCM OPERATION 
  • Disconnect all the PCM connectors.
  • Visually inspect for:
    • Pushed out pins
    • Corrosion
  • Connect all the PCM connectors and verify that they seat correctly.
  • 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 .)
No Go to the next step.
6 VERIFY TROUBLESHOOTING OF DTC P061C 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.
  • Perform the "KOEO and KOER self-test".

    (See KOEO/KOER SELF TEST .)

  • Retrieve the 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.

(See PCM REMOVAL/INSTALLATION .)
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.