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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 631 (On-Board Diagnostic (Engine Control System MZI-3.7) (4 Of 5)) >> DTC P1001:00 [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 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 DLC-2 FOR POOR CONNECTION 
  • Switch the ignition off
  • Inspect for poor connection at the DLC-2 (such as damaged/pulled-out pins, corrosion)
  • Are there any malfunction?
 Yes Repair or replace suspected part, then go to Step 6
No 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 [MZI-3.7] .)
No Go to the next step.
6 VERIFY TROUBLESHOOTING OF DTC P1001:00 HAS BEEN COMPLETED 
  • Verify that all disconnected connectors are reconnected.
  • Switch the ignition ON (Engine off).
  • Clear the DTC from the PCM memory using the M-MDS.
  • Perform the "KOEO or KOER self-test".

    (See KOEO/KOER SELF TEST [MZI-3.7] .)

  • Is the same 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.
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