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DTC C1425: Open in Stop Light Switch Circuit: Procedure

  1. CHECK STOP LIGHT OPERATION 
    1. Check that the stop lights come on when the brake pedal is depressed, and go off when the brake pedal is released.

      OK

      Condition Illumination Condition
      Brake pedal depressed ON
      Brake pedal released OFF

    NG → See step   4 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (STP TERMINAL) See step   8 

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. RECONFIRM DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR [12/2011 - ] .
    2. Turn the engine switch off.
    3. Start the engine.
    4. Check if the same DTC is recorded. Refer to DTC CHECK / CLEAR [12/2011 - ] .
      RESULT

      Result Proceed to
      DTC (C1425) is output A
      DTC (C1425) is not output B

      HINT: 

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE [12/2011 - ] .

    B → See step   7 

    A → See step   5 

  4. CHECK HARNESS AND CONNECTOR (BATTERY - NO. 2 INTEGRATION RELAY) See step   7 

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   6 

  5. REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [12/2011 - ] 
  6. GO TO INTEGRATION RELAY (ON-VEHICLE INSPECTION). Refer to  ON-VEHICLE INSPECTION [12/2011 - ] 
  7. CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2011 - ]