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Home >> Mazda >> 2010 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3] >> DTC P2402 >> Diagnostic procedure
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Diagnostic procedure

DTC P2402 [L3] DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA (MODE 12) HAVE BEEN RECORDED 
  • Have FREEZE FRAME DATA (Mode 12) been recorded?
Yes Go to the next step.
No Record FREEZE FRAME DATA (Mode 12) on 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 repair information available?
Yes Perform repair or diagnostic according to available repair information.
  • If vehicle is not repaired, then go to the next step.
No Go to the next step.
3 INSPECT EVAP SYSTEM LEAK DETECTION PUMP CIRCUIT FOR SHORT TO POWER 
  • Turn the ignition switch to the ON position.
  • Disconnect the EVAP system leak detection pump connector.
  • Measure the voltage between EVAP system leak detection pump terminal D (wiring-harness-side) and body ground.
  • Is the voltage B+  ?
Yes Repair or replace the wiring harness, then go to the next step.
No Go to the next step.
4 VERIFY TROUBLESHOOTING OF DTC P2402 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the PCM memory using the M-MDS.
  • Perform the evaporative system test using the M-MDS.

    (See ENGINE CONTROL SYSTEM OPERATION INSPECTION .)

  • Is the same DTC present?
    NOTE:
    • If evaporative system test function is not available, perform the following procedure:
    • Perform the EVAP System Repair Verification Drive Mode.

      (See OBD-II DRIVE MODE )

    • Is the PENDING CODE the same as the DTC present?
Yes Replace the PCM, then go to the next step.
No Go to the next step.
5 VERIFY AFTER REPAIR PROCEDURE 
Yes Go to the applicable DTC inspection.
(See DTC TABLE .)
No Troubleshooting completed.