POWER MIRROR CONTROL SYSTEM(w/ Reverse Shift-linked Mirror) Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch

SYSTEM DESCRIPTION

When the mirror adjust switch is operated, the main body ECU (multiplex network body ECU) detects the switch operation and sends the mirror adjust switch signal to the outer mirror control ECU assembly (front passenger door) via CAN communication. On receiving the signal, the outer mirror control ECU assembly (front passenger door) operates the vertical and horizontal mirror motors, which are built into the outer rear view mirror assembly (front passenger door), to adjust the mirror surface position.

WIRING DIAGRAM

A01W4XBE91

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check for CAN communication system DTCs Click here.*1

    2. Check for CAN communication system DTCs Click here.*2


      • *1: w/o Central Gateway ECU

      • *2: w/ Central Gateway ECU

      Result
      Result Proceed to
      CAN DTCs are not output A
      CAN DTCs are output (w/o central gateway ECU) B
      CAN DTCs are output (w/ central gateway ECU) C

    B
    C
    A
  2. READ VALUE USING GTS (OUTER MIRROR SWITCH ASSEMBLY)


    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.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Mirror Selection SW (R) Mirror select switch signal for RH mirror / ON or OFF

      ON: Mirror select switch in R position

      OFF: Mirror select switch off or in L position

      *1
      Mirror Selection SW (L) Mirror select switch signal for LH mirror / ON or OFF

      ON: Mirror select switch in L position

      OFF: Mirror select switch off or in R position

      *2
      Mirror Position SW (R) Mirror adjust switch signal (Right) / ON or OFF

      ON: Mirror adjust switch pressed right

      OFF: Mirror adjust switch not pressed right

      Check with the mirror select switch in the R position.*1

      Check with the mirror select switch in the L position.*2

      Mirror Position SW (L) Mirror adjust switch signal (Left) / ON or OFF

      ON: Mirror adjust switch pressed left

      OFF: Mirror adjust switch not pressed left

      Check with the mirror select switch in the R position.*1

      Check with the mirror select switch in the L position.*2

      Mirror Position SW (Up) Mirror adjust switch signal (Up) / ON or OFF

      ON: Mirror adjust switch pressed up

      OFF: Mirror adjust switch not pressed up

      Check with the mirror select switch in the R position.*1

      Check with the mirror select switch in the L position.*2

      Mirror Position SW (Dwn) Mirror adjust switch signal (Down) / ON or OFF

      ON: Mirror adjust switch pressed down

      OFF: Mirror adjust switch not pressed down

      Check with the mirror select switch in the R position.*1

      Check with the mirror select switch in the L position.*2


      • *1: for LHD

      • *2: for RHD

      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.

    NG
    OK
  3. PERFORM ACTIVE TEST USING GTS (POWER MIRROR CONTROL FUNCTION)


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

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

      Mirror R / Mirror L
      Tester Display Test Part Control Range Diagnostic Note
      Mirror Up/Down Mirror vertical operation Up / Down
      • Operate with engine switch on (IG) and the vehicle stopped.

      • This test tilts the mirror up or down.

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

      Mirror Right/Left Mirror horizontal operation Right / Left
      • Operate with engine switch on (IG) and the vehicle stopped.

      • This test tilts the mirror right or left.

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

      OK
      Power mirror operation is normal.

    OK
    NG
  4. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY (FRONT PASSENGER DOOR) (MIRROR SURFACE)


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

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


    OK
    NG
  5. INSPECT OUTER MIRROR SWITCH ASSEMBLY


    1. Remove the outer mirror switch assembly Click here.

    2. Inspect the outer mirror switch assembly Click here.


    NG
    OK
  6. CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH - MAIN BODY ECU)


    1. Disconnect the H81 outer mirror switch assembly connector.

    2. Disconnect the H9 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
      H81-14 (E) - H9-15 (MIRE) Always Below 1 Ω
      H81-16 (M+) - H9-13 (MIRB) Always Below 1 Ω
      H81-13 (MSW) - H9-14 (MIRS) Always Below 1 Ω
      H81-14 (E) - Body ground Always 10 kΩ or higher
      H81-16 (M+) - Body ground Always 10 kΩ or higher
      H81-13 (MSW) - Body ground Always 10 kΩ or higher

    OK
    NG