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Diagnostic procedure

DTC P2502 - 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 FREEZE FRAME PID DATA on repair order, then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Check for 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 BATTERY 
  • Turn the ignition switch off.
  • Inspect battery.

    (See BATTERY INSPECTION .)

  • Is there any malfunction?
 Yes Replace battery, then go to Step 7.
(See BATTERY REMOVAL/INSTALLATION .)
No Go to the next step.
4 INSPECT GENERATOR TERMINAL FOR POOR INSTALLATION 
  • Turn the ignition switch off.
  • Check for looseness of generator terminal B installation nut.
  • Is nut loose?
 Yes Tighten generator terminal B installation nut, then go to Step 7.
No Go to the next step.
5 INSPECT BATTERY POSITIVE TERMINAL FOR POOR INSTALLATION 
  • Turn the ignition switch off.
  • Check for looseness of battery positive terminal.
  • Is terminal loose?
 Yes Connect battery positive terminal correctly, then go to Step 7.
No Go to the next step.
6 INSPECT BATTERY CHARGING CIRCUIT 
  • Start engine.
  • Disconnect battery positive terminal.
  • Does engine stall?
 Yes Repair or replace harness between generator terminal B and battery positive terminal, then go to the next step.
No Go to the next step.
7 VERIFY TROUBLESHOOTING OF DTC P2502 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the memory using the WDS or equivalent.
  • Turn key to OFF, then start engine.
  • Is same DTC present?
 Yes Replace 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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