WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Power Switch) No Answer-Back

DESCRIPTION

In some cases, wireless door lock control functions are normal but the hazard warning light answer-back function does not operate. In such cases, the hazard warning light signals output from the main body ECU may be malfunctioning.

WIRING DIAGRAM

A01UXH4E03

CAUTION / NOTICE / HINT

Note

Troubleshooting should be started after confirming that the customize status of the answer-back function has been switched on.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Use the GTS to check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. READ VALUE USING GTS (ANSWER-BACK OPERATION)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Utility / Customize / Wireless Door Lock.

    5. Select the setting by referring to the table below.

      Wireless Door Lock
      Display Default Content Setting Relevant ECU
      Hazard Answer Back ON

      When the doors are locked by wireless operation, the hazard warning lights flash once.

      When the doors are unlocked by wireless operation, the hazard warning lights flash twice

      		 OFF or ON Main body ECU
      Result
      Result Proceed to
      Both items are ON A
      Either item is OFF B

    B

    PERFORM CUSTOMIZE FUNCTION Click here

    A

  3. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS


    1. Check the wireless door lock control function by the electrical key transmitter sub-assembly.

      Result
      Result Proceed to
      Wireless door lock / unlock operates normally A
      Wireless door lock / unlock does not operate normally B

    B

    GO TO ENTRY AND START SYSTEM (FOR ENTRY FUNCTION) Click here

    A

  4. READ VALUE USING GTS (UNLOCK DETECTION SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. According to the display on the GTS, read the Data List.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FR Door Lock Pos Front door unlock detection switch RH signal / LOCK or UNLOCK

      LOCK: Front RH door locked

      UNLOCK: Front RH door unlocked

      		 -
      FL Door Lock Pos Front door unlock detection switch LH signal / LOCK or UNLOCK

      LOCK: Front LH door locked

      UNLOCK: Front LH door unlocked

      		 -
      RR-Door Lock Pos SW Rear door unlock detection switch LH and RH signal / OFF or ON

      OFF: Rear door LH and RH locked

      ON: Rear door LH or RH unlocked

      		 -
      RL-Door Lock Pos SW Rear door unlock detection switch LH and RH signal / OFF or ON

      OFF: Rear door LH and RH locked

      ON: Rear door LH or RH unlocked

      		 -
      OK
      The GTS should display as shown in the table according to door lock operation.

    NG

    GO TO LIGHTING SYSTEM Click here

    OK

  5. CHECK HAZARD WARNING LIGHT OPERATION


    1. Check that the hazard warning lights flash continuously when the telltale light assembly (hazard warning signal switch) is pressed.

      OK
      Hazard warning lights flash continuously.

    OK

    REPLACE MAIN BODY ECU Click here

    NG

    GO TO LIGHTING SYSTEM Click here