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Diagnostic procedure

DTC P0108 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 Technical Service Bulletin(s) 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 (wiring harness-side) and body ground.
  • Is there continuity?
 Yes Go to the next step.
No Inspect for open circuit in wiring harness between PCM terminal 2AA (wiring harness-side) and MAP sensor terminal A (wiring harness-side). 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 (wiring harness-side).
  • 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 (wiring harness-side) and PCM terminal 2AL (wiring harness-side)
    • MAP sensor terminal C (wiring harness-side) and PCM terminal 2W (wiring harness-side)
  • Is there continuity?
 Yes Go to the nextstep.
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.
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