POWER MIRROR CONTROL SYSTEM (w/ Memory) Mirror Heater does not Operate with Rear Defogger Switch

DESCRIPTION

When the rear defogger switch is operated, the mirror heater signal is sent to the Air conditioning amplifier assembly and then to each outer mirror control ECU assembly via CAN communication. Based on the signal, each outer mirror control ECU assembly operates the mirror heater.

WIRING DIAGRAM

A01EYSME12

INSPECTION PROCEDURE

Note


  • The power mirror control system (w/ Memory) uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power mirror control system (w/ Memory) after confirming that the communication systems are functioning properly Click here.

  • The mirror heater operation is linked with the defogger system or wiper and washer system. Confirm that these systems are operating normally before starting the inspection.

PROCEDURE


  1. CHECK WINDOW DEFOGGER SYSTEM


    1. Check window defogger system operation Click here.

      OK
      Window defogger system is normal.

    NG

    GO TO WINDOW DEFOGGER SYSTEM Click here

    OK

  2. PERFORM ACTIVE TEST USING GTS


    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 / Mirror L or Mirror R / Active Test.

    5. Perform an Active Test according to the display on the GTS.

      Mirror L / Mirror R
      Tester Display Test Part Control Range Diagnostic Note
      Mirror Heater Mirror heater operation ON / OFF

      • Operate with engine switch on (IG) and the vehicle stopped.

      • This test activates the mirror heater on or off.

      • Mirror heater operation can be confirmed by touch.
      Result
      Result Proceed to
      Mirror heater operation on both mirrors are not normal A
      Mirror heater operation on front passenger door mirror is not normal B
      Mirror heater operation on driver door mirror is not normal C

    B

    INSPECT OUTER REAR VIEW MIRROR ASSEMBLY (FRONT PASSENGER DOOR) Click here

    C

    INSPECT OUTER REAR VIEW MIRROR ASSEMBLY (DRIVER DOOR) Click here

    A

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

  3. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY (FRONT PASSENGER DOOR)


    1. Remove the outer rear view mirror assembly (front passenger door) Click here.

    2. Inspect the outer rear view mirror assembly (front passenger door) (mirror heater) Click here.


    NG

    INSPECT OUTER MIRROR RH Click here

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR) Click here

  4. INSPECT OUTER MIRROR RH


    1. Remove the outer mirror RH Click here.

    2. Inspect the outer mirror RH Click here.


    NG

    REPLACE OUTER MIRROR RH Click here

    OK

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY (FRONT PASSENGER DOOR) Click here

  5. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY (DRIVER DOOR)


    1. Remove the outer rear view mirror assembly (driver door) Click here.

    2. Inspect the outer rear view mirror assembly (driver door) (mirror heater) Click here.


    NG

    INSPECT OUTER MIRROR LH Click here

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR) Click here

  6. INSPECT OUTER MIRROR LH


    1. Remove the outer mirror LH Click here.

    2. Inspect the outer mirror LH Click here.


    NG

    REPLACE OUTER MIRROR LH Click here

    OK

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY (DRIVER DOOR) Click here