POWER MIRROR CONTROL SYSTEM Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch

DESCRIPTION

When the outer mirror switch assembly mirror surface adjust switch (up/down/left/right) is operated, up/down/left/right signals are received by the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) sends the received signals to the outer mirror control ECU assembly LH*1 or RH*2 via CAN communication. The outer mirror control ECU assembly LH*1 or RH*2 receives the remote mirror selection signal and up/down/left/right signals and operates the outer rear view mirror assembly LH*1 or RH*2 up/down/left/right based on the signals.


WIRING DIAGRAM

A01MHTVE01
A01MHTVE02

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 SWITCH ASSEMBLY)


    1. Using the GTS, read the Data List.

      Click here


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Mirror Selection SW (R) Mirror select switch signal for RH mirror*1 OFF or ON

      OFF: Mirror select switch off

      ON: Mirror select switch R switch on

      		 -
      Mirror Selection SW (L) Mirror select switch signal for LH mirror*2 OFF or ON

      OFF: Mirror select switch off

      ON: Mirror select switch L switch on

      		 -
      Mirror Position SW (R) Mirror surface adjust switch signal (Right) OFF or ON

      OFF: Mirror surface adjust switch not pressed right

      ON: Mirror surface adjust switch pressed right

      		 Check with the mirror select switch L*2 or R*1 switch on
      Mirror Position SW (L) Mirror surface adjust switch signal (Left) OFF or ON

      OFF: Mirror surface adjust switch not pressed left

      ON: Mirror surface adjust switch pressed left

      		 Check with the mirror select switch L*2 or R*1 switch on
      Mirror Position SW (Up) Mirror surface adjust switch signal (Up) OFF or ON

      OFF: Mirror surface adjust switch not pressed up

      ON: Mirror surface adjust switch pressed up

      		 Check with the mirror select switch L*2 or R*1 switch on
      Mirror Position SW (Dwn) Mirror surface adjust switch signal (Down) OFF or ON

      OFF: Mirror surface adjust switch not pressed down

      ON: Mirror surface adjust switch pressed down

      		 Check with the mirror select switch L*2 or R*1 switch on

      • *1: for RHD

      • *2: for LHD


      Body Electrical > Main Body > Data List
      Tester Display
      Mirror Selection SW (R)
      Mirror Selection SW (L)
      Mirror Position SW (R)
      Mirror Position SW (L)
      Mirror Position SW (Up)
      Mirror Position SW (Dwn)
      OK
      The display is as specified in the normal condition column.
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT OUTER MIRROR SWITCH ASSEMBLY Click here

    OK

  2. INSPECT OUTER MIRROR ACTUATOR ASSEMBLY (DRIVER SIDE MIRROR SURFACE)


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

      Click here

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

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH (DRIVER SIDE) Click here REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH (DRIVER SIDE) Click here

  3. INSPECT OUTER MIRROR SWITCH ASSEMBLY


    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

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


    1. Disconnect the N1 outer mirror switch assembly connector.

    2. Disconnect the G7 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
      N1-13 (M+) - G7-4 (MIRB) Always Below 1 Ω
      N1-15 (MSW) - G7-5 (MIRS) Always Below 1 Ω
      N1-16 (E) - G7-6 (MIRE) Always Below 1 Ω
      N1-13 (M+) or G7-4 (MIRB) - Body ground Always 10 kΩ or higher
      N1-15 (MSW) or G7-5 (MIRS) - Body ground Always 10 kΩ or higher
      N1-16 (E) or G7-6 (MIRE) - 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