THEFT DETERRENT SYSTEM Theft Deterrent System Unexpectedly Sets Itself

DESCRIPTION

A situation in which the theft deterrent system unexpectedly sets itself can be caused when the main body ECU (multiplex network body ECU) cannot detect whether a door is open or closed.

If the theft deterrent system unexpectedly sets itself, there may be a malfunction in a courtesy switch, the main body ECU (multiplex network body ECU) or a wire harness.

WIRING DIAGRAM

A01IGW5E01

CAUTION / NOTICE / HINT

Note

The theft deterrent system is also set when doors are locked by the auto lock function of the wireless door lock system.

PROCEDURE


  1. CHECK WIRELESS DOOR LOCK SYSTEM OPERATION


    1. Check that the auto lock function of the wireless door lock system can be canceled.


      1. Unlock the doors using wireless operation or entry operation.

      2. Within 30 seconds, open and close one of the doors.

      Result
      Result Proceed to
      Door locks are locked A
      Door locks are not locked B

    B

    END (SYSTEM NORMAL)

    A

  2. READ VALUE USING GTS (RR DOOR COURTESY SW, RL DOOR COURTESY SW, BACK DOOR COURTESY SW, FR DOOR COURTESY SW AND FL DOOR COURTESY SW)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      RR Door Courtesy SW Rear door courtesy light switch assembly RH signal ON or OFF

      OFF: Rear door RH closed

      ON: Rear door RH open

      		 -
      RL Door Courtesy SW Rear door courtesy light switch assembly LH signal ON or OFF

      OFF: Rear door LH closed

      ON: Rear door LH open

      		 -
      Back Door Courtesy SW Back door courtesy switch signal ON or OFF

      ON: Back door open

      OFF: Back door closed

      		 -
      FR Door Courtesy SW Front door courtesy light switch assembly RH signal ON or OFF

      OFF: Front door RH closed

      ON: Front door RH open

      		 -
      FL Door Courtesy SW Front door courtesy light switch assembly LH signal ON or OFF

      OFF: Front door LH closed

      ON: Front door LH open

      		 -

      Body Electrical > Main Body > Data List
      Tester Display
      RR Door Courtesy SW
      RL Door Courtesy SW
      Back Door Courtesy SW
      FR Door Courtesy SW
      FL Door Courtesy SW
      OK
      Normal conditions listed above are displayed.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    NG

    GO TO LIGHTING SYSTEM Click here