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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 391 (On-Board Diagnostic (Engine Control System AJ]) >> DTC P1623 >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
DTC P1623 - DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Check for related Service bulletins and/or on-line repair information availability.
  • Is any repair information available?
 Yes Perform repair or diagnosis according to the available repair information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
2 VERIFY DTC P1623 DETECTED AGAIN 
  • Clear the DTC from the memory using the WDS or equivalent.
  • Turn key to OFF, then start engine.
  • Is same DTC present?
 Yes Replace PCM, then go to the next step.
No Go to the next step.
3 VERIFY AFTER REPAIR PROCEDURE  Yes Go to the applicable DTC inspection.
(See DTC TABLE .)
No Troubleshooting completed.
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