POWER MIRROR CONTROL SYSTEM Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

DESCRIPTION

When the outer mirror switch assembly mirror retract switch is operated, deploy/retract signals are sent to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) sends deploy/retract signals to the outer mirror control ECU assembly via CAN communication. The outer mirror control ECU assembly deploys and retracts the outer rear view mirror assembly based on the received signals.

WIRING DIAGRAM

A01MHGRE01
A01MHGRE05

CAUTION / NOTICE / HINT

Note


  • First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.

  • If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.

PROCEDURE


  1. READ VALUE USING GTS (OUTER MIRROR FOLD SW)


    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. 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
      Outer Mirror Fold SW Mirror retract switch signal OFF or ON

      OFF: Mirror retract switch not in retract position

      ON: Mirror retract switch in retract position

      		 -

      Body Electrical > Main Body > Data List
      Tester Display
      Outer Mirror Fold SW
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT OUTER MIRROR SWITCH ASSEMBLY (MIRROR RETRACT SWITCH) Click here

    OK

  2. PERFORM ACTIVE TEST USING GTS


    1. Enter the following menus: Body Electrical / Mirror L or Mirror R / Active Test.

    2. Perform the Active Test according to the display on the GTS.


      Body Electrical > Mirror L > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Mirror Fold/Return Mirror retract operation OFF, Return or Fold

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

      • This test activates the Fold / Return.

      • This operation can be confirmed by watching the mirror move in the desired direction.

      Body Electrical > Mirror L > Active Test
      Tester Display
      Mirror Fold/Return

      Body Electrical > Mirror R > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Mirror Fold/Return Mirror retract operation OFF, Return or Fold

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

      • This test activates the Fold / Return.

      • This operation can be confirmed by watching the mirror move in the desired direction.

      Body Electrical > Mirror R > Active Test
      Tester Display
      Mirror Fold/Return
      Result
      Result Proceed to
      Outer rear view mirror assemblies operate normally (for LHD) A
      Outer rear view mirror assemblies operate normally (RHD) B
      Outer rear view mirror assembly (driver side) does not operate normally C
      Outer rear view mirror assembly (front passenger side) does not operate normally D

    A

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    D

    INSPECT OUTER MIRROR ACTUATOR ASSEMBLY (FRONT PASSENGER DOOR) Click here

    C

  3. INSPECT OUTER MIRROR ACTUATOR ASSEMBLY (DRIVER DOOR)


    1. Remove the outer mirror actuator assembly (driver door).

      Click here

    2. Inspect the outer mirror actuator assembly (driver door).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER MIRROR ACTUATOR ASSEMBLY (DRIVER DOOR) Click here

    OK

  4. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR)


    1. Temporarily replace the outer mirror control ECU assembly (driver door) with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK POWER RETRACT MIRROR FUNCTION


    1. Check the power retract mirror function operates normally.

      Click here

      OK
      Power retract mirror function operates normally.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    C

    END (OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR) WAS DEFECTIVE)

  6. INSPECT OUTER MIRROR ACTUATOR ASSEMBLY (FRONT PASSENGER DOOR)


    1. Remove the outer mirror actuator assembly (front passenger door).

      Click here

    2. Inspect the outer mirror actuator assembly (front passenger door).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER MIRROR ACTUATOR ASSEMBLY (FRONT PASSENGER DOOR) Click here

    OK

  7. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR)


    1. Temporarily replace the outer mirror control ECU assembly (front passenger door) with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. CHECK POWER RETRACT MIRROR FUNCTION


    1. Check the power retract mirror function operates normally.

      Click here

      OK
      Power retract mirror function operates normally.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR) WAS DEFECTIVE)

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    C

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  9. INSPECT OUTER MIRROR SWITCH ASSEMBLY (MIRROR RETRACT SWITCH)


    1. Remove the outer mirror switch assembly.

      Click here

    2. Inspect the outer mirror switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER MIRROR SWITCH ASSEMBLY Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] AND BODY GROUND)


    1. Disconnect the N1 outer mirror switch assembly connector.

    2. Disconnect the G5 main body ECU (multiplex network body ECU) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      N1-17 (MAT) - G5-15 (RTR) Always Below 1 Ω
      N1-11 (MR) - G5-14 (RET) Always Below 1 Ω
      N1-18 (E) - Body ground Always Below 1 Ω
      N1-17 (MAT) or G5-15 (RTR) - Body ground Always 10 kΩ or higher
      N1-11 (MR) or G5-14 (RET) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR