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

DESCRIPTION

The multiplex network master switch assembly sends the mirror adjust switch signals to the main body ECU (multiplex network body ECU) via LIN communication. The main body ECU (multiplex network body ECU) then sends the received mirror adjust switch signals to the front multiplex network door ECU (front passenger door) via CAN communication. Upon receiving the signal, the front multiplex network door ECU (front passenger door) operates the vertical and horizontal mirror motors, which are built into the outer mirror actuator assembly (front passenger door), to adjust the mirror surface position.

WIRING DIAGRAM

Figure 1. for LHD:

B000QBJE04

Figure 2. for RHD:

B000QBJE05

CAUTION / NOTICE / HINT

Note


  • The power mirror control system uses the CAN communication system and LIN communication system. Inspect the communication functions by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication systems are functioning properly.

    Click here

  • Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

PROCEDURE


  1. READ VALUE USING GTS (MIRROR SELECTION SW (L/R), MIRROR POSITION SW (L/R/UP/DWN))


    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 / Master Switch / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Master Switch > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Mirror Selection SW (L) Mirror select switch signal for LH mirror OFF or ON

      OFF: Mirror select switch off

      ON: Mirror select switch L switch on

      		 for RHD
      Mirror Selection SW (R) Mirror select switch signal for RH mirror OFF or ON

      OFF: Mirror select switch off

      ON: Mirror select switch R switch on

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

      OFF: Mirror adjust switch not pressed left

      ON: Mirror adjust switch pressed left

      		 Check with the mirror select switch L or R switch on
      Mirror Position SW (R) Mirror adjust switch signal (Right) OFF or ON

      OFF: Mirror adjust switch not pressed right

      ON: Mirror adjust switch pressed right

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

      OFF: Mirror adjust switch not pressed up

      ON: Mirror adjust switch pressed up

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

      OFF: Mirror adjust switch not pressed down

      ON: Mirror adjust switch pressed down

      		 Check with the mirror select switch L or R switch on

      Body Electrical > Master Switch > Data List
      Tester Display
      Mirror Selection SW (L)
      Mirror Selection SW (R)
      Mirror Position SW (L)
      Mirror Position SW (R)
      Mirror Position SW (Up)
      Mirror Position SW (Dwn)
      OK
      On the GTS screen, ON or OFF is displayed accordingly.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here

    OK

  2. INSPECT OUTER MIRROR ACTUATOR ASSEMBLY (FRONT PASSENGER DOOR) (MIRROR SURFACE)


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

      Click here

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

      Click here

      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  3. CHECK HARNESS AND CONNECTOR (OUTER MIRROR ACTUATOR ASSEMBLY (FRONT PASSENGER DOOR) - FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER DOOR))


    1. for LHD:


      1. Disconnect the R6 outer mirror actuator assembly RH connector.

      2. Disconnect the R10 front multiplex network door ECU RH connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R6-9 (MH) - R10-9 (PMHR) Always Below 1 Ω
        R6-9 (MH) or R10-9 (PMHR) - Body ground Always 10 kΩ or higher
        R6-10 (M+) - R10-10 (PM+R) Always Below 1 Ω
        R6-10 (M+) or R10-10 (PM+R) - Body ground Always 10 kΩ or higher
        R6-1 (MV) - R10-1 (PMVR) Always Below 1 Ω
        R6-1 (MV) or R10-1 (PMVR) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the S6 outer mirror actuator assembly LH connector.

      2. Disconnect the S10 front multiplex network door ECU LH connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        S6-9 (MH) - S10-9 (DMHR) Always Below 1 Ω
        S6-9 (MH) or S10-9 (DMHR) - Body ground Always 10 kΩ or higher
        S6-10 (M+) - S10-10 (DM+R) Always Below 1 Ω
        S6-10 (M+) or S10-10 (DM+R) - Body ground Always 10 kΩ or higher
        S6-1 (MV) - S10-1 (DMVR) Always Below 1 Ω
        S6-1 (MV) or S10-1 (DMVR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER DOOR) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


    1. Temporarily replace the multiplex network master switch assembly with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK POWER MIRROR CONTROL OPERATION


    1. Check the electrical remote control mirror function.

      Click here

      OK
      Electrical remote control mirror function operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

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