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Diagnostic procedure

DTC P2507 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED 
  • Has FREEZE FRAME PID DATA been recorded?
 Yes Go to the next step.
No Record FREEZE FRAME PID DATA on repair order, then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Check for related Technical Service Bulletin(s) repair information availability.
  • Is any related repair information available?
 Yes Perform repair or diagnosis according to available repair information.
  • If vehicle is not repaired, go to the next step.
No Go to the next step.
3 INSPECT EEC FUSE 
  • Turn the ignition switch off.
  • Inspect EEC fuse for failure and proper.
  • Is it normal?
 Yes Go to Step 6.
No
  • If EEC fuse has been burnt, then go to the next step.
  • If EEC fuse is not installed correctly, install it correctly then go to Step 7.
4 INSPECT MONITOR CIRCUIT FOR SHORT TO GROUND 
  • Disconnect battery cables.
  • Inspect for continuity between EEC fuse terminal and body ground.
  • Is there continuity?
 Yes Repair or replace the wiring harness for short to ground and install new fuse, then go to Step 7.
No Go to Step 7.
5 INSPECT PCM CONNECTOR FOR POOR CONNECTION 
  • Disconnect PCM connector.
  • Inspect for poor connection (such as damaged, pulled-out terminals, corrosion).
  • Is there any malfunction?
 Yes Repair terminals, then go to Step 7.
No Go to the next step.
6 INSPECT MONITOR CIRCUIT FOR OPEN CIRCUIT 
  • Disconnect battery cables.
  • Inspect for continuity between EEC fuse terminal and PCM terminal 1BA (wiring harness-side).
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness for open circuit, then go to the next step.
7 VERIFY TROUBLESHOOTING OF DTC P2507 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Turn the ignition switch to the ON position (Engine off).
  • Clear the DTC from the PCM memory using the WDS or equivalent.
  • Start the engine and warm it up completely.
  • 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.
8 VERIFY AFTER REPAIR PROCEDURE  Yes Go to the applicable DTC inspection.
(See DTC TABLE )
No Troubleshooting completed.
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