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Key-off Operation Function Operates even if Operating Conditions are not Satisfied: Procedure

  1. CHECK LIN COMMUNICATION SYSTEM 
    1. Check for LIN communication system DTCs related to the power window control system. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2011 - ] .

      OK

      LIN communication system DTCs are not output.

    NG → See step   8 

    OK: Go to next step 

  2. CHECK POWER WINDOW OPERATION FUNCTION AFTER ENGINE SWITCH TURNED OFF 
    1. Check the power window operation function after the engine switch is turned off. Refer to OPERATION CHECK [12/2011 - ] .
      RESULT

      Result Proceed to
      Front side door is opened within 43 seconds. but power windows can still operate A
      43 seconds. pass and power windows can still operate B

    B → See step   7 

    A: Go to next step 

  3. READ VALUE USING TECHSTREAM (DOOR COURTESY) 
    1. Use the Data List to check if the main body ECU (multiplex network body ECU) is functioning properly. Refer to DATA LIST / ACTIVE TEST [12/2011 - ] .
      MAIN BODY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FL Door Courtesy Front door courtesy light switch LH signal / ON or OFF ON: Front door LH closed
      OFF: Front door LH open
      -
      FR Door Courtesy Front door courtesy light switch RH signal / ON or OFF ON: Front door RH closed
      OFF: Front door RH open
      -

      OK

      On Techstream screen, each item changes between ON and OFF according to above chart.

    NG → See step   4 

    OK → See step   7 

  4. CHECK FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY 
    1. Open a front door and check that the map light illuminates. Refer to REMOVAL [12/2011 - ] .

      OK

      Map light illuminates.

    NG → See step   6 

    OK: Go to next step 

  5. CHECK COWL SIDE JUNCTION BLOCK LH 
    1. Temporarily replace the cowl side junction block LH with a new or normally functioning one. Refer to REMOVAL [12/2011 - ] .
    2. Check that the key-off operation function operates normally.

      OK

      Key-off operation function operates normally.

    NG → See step   7 

    OK → END (COWL SIDE JUNCTION BLOCK LH WAS DEFECTIVE) 

  6. REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY. Refer to  REMOVAL [12/2011 - ] 
  7. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [12/2011 - ] 
  8. GO TO LIN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2011 - ]