LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2006 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3) >> DTC P0108 >> Diagnostic Procedure

Diagnostic Procedure

DIAGNOSTIC PROCEDURE

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 INSPECT CONNECTION OF MAP SENSOR CONNECTOR 
  • Turn the ignition switch off.
  • Verify that the MAP sensor connector is connected securely.
  • Is connection normal?
Yes Go to the next step.
No Reconnect the connector, then go to Step 9.
4 INSPECT POOR CONNECTION OF MAP SENSOR CONNECTOR 
  • Disconnect the MAP sensor connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
5 VERIFY MAP SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between the MAP sensor terminal A and body ground.
  • Is there continuity?
Yes Go to the next step.
No Inspect for open circuit in wiring harness between PCM terminal 2AA and MAP sensor terminal A. Repair or replace suspected harness, then go to Step 9.
6 INSPECT PCM CONNECTOR 
  • Disconnect the PCM connector.
  • Inspect for poor connection at terminals (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
Yes Repair the terminal, then go to Step 9.
No Go to the next step.
7 VERIFY MAP SENSOR SIGNAL CIRCUIT FOR SHORT TO CONSTANT VOLTAGE CIRCUIT 
  • Inspect for continuity between MAP sensor terminal D and C.
  • Is there continuity?
Yes Repair or replace the wiring harness, then go to Step 9.
No Go to the next step.
8 VERIFY MAP SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between following:
    • MAP sensor terminal D and PCM terminal 2AL
    • MAP sensor terminal C and PCM terminal 2W
  • Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness, then go to the next step.
9 VERIFY TROUBLESHOOTING OF DTC P0108 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Turn the ignition switch to the ON position (Engine off).
  • Clear the DTC from the memory using the WDS or equivalent.
  • Start the engine.
  • Is the same DTC present?
Yes Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION ).
No Go to the next step.
10 VERIFY AFTER REPAIR PROCEDURE  Yes Go to the applicable DTC troubleshooting.
(See DTC TABLE ).
No Troubleshooting completed.