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Diagnostic procedure

DTC P2507 [L3] DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA (MODE 12) HAS BEEN RECORDED 
  • Has FREEZE FRAME PID DATA (Mode 12) been recorded?
 Yes Go to the next step.
No Record FREEZE FRAME PID DATA (Mode 12) on 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 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 5.
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 1C (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.
  • Clear the DTC from the PCM memory using the M-MDS.

    (See AFTER REPAIR PROCEDURE .)

  • Perform the KOEO/KOER self test.

    (See KOEO/KOER SELF TEST .)

  • 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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