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Home >> Mazda >> 2007 >> RX-8 Touring, 1.3 3 >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic (Engine Control System) 13BMSP >> DTC P0125 >> Diagnostic procedure
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Diagnostic procedure

DTC P0125 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 the 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 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.
3 VERIFY CURRENT INPUT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT? 
  • Connect the M-MDS or equivalent to the DLC-2.
  • Start the engine and warm it up completely.
  • Access the ECT PID.
  • Is the ECT PID more than 70 °C {158 °F}? 
 Yes Intermittent concern exists. Perform the INTERMITTENT CONCERN TROUBLESHOOTING .
No Go to the next step.
4 INSPECT ECT SENSOR 
 Yes Replace the ECT sensor, then go to Step 6. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION )
No Go to the next step.
5 INSPECT MAF SENSOR 
 Yes Replace the MAF/IAT sensor, then go to the next step. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION )
No Go to the next step.
6 VERIFY TROUBLESHOOTING OF DTC P0125 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the PCM memory using the M-MDS or equivalent.
  • Access the ECT PI D.
  • Wait until the ECT PID less than 20 °C {68 °F}  .
  • Start the engine and warm it up completely.
  • Is the PENDING CODE same as the DTC present?
 Yes Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION )
No Go to the next step.
7 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection. (See DTC TABLE ).
No DTC troubleshooting completed.
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