POWER MIRROR CONTROL SYSTEM Power Mirrors do not Return to Memorized Position

DESCRIPTION

If any of the M1, M2 or M3 seat memory switch is pressed, the front multiplex network door ECU (driver door) detects the switch operation and sends the seat memory switch signal to the main body ECU (multiplex network body ECU) via CAN communication. The main body ECU (multiplex network body ECU) sends the reproduction signal to each front multiplex network door ECU via CAN communication. When receiving the reproduction signal, each front multiplex network door ECU operates the vertical and horizontal mirror motors, which are built into the outer rear view mirror assembly, to adjust the mirror surface to the stored position.

WIRING DIAGRAM

Figure 1. for LHD:

B000UF1E02

Figure 2. for RHD:

B000UF1E03

CAUTION / NOTICE / HINT

Note


  • The power mirror control system uses the CAN communication system. First, confirm that there is no malfunction in the CAN communication system. Refer to the How to Proceed with Troubleshooting procedure.

    Click here

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

PROCEDURE


  1. CHECK SEAT MEMORY SWITCH FUNCTION


    1. When any seat memory switch (M1, M2 or M3) is pressed, check that the driver seat moves to the memorized position.

      Click here

      OK
      Driver seat moves to the memorized position.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO FRONT POWER SEAT CONTROL SYSTEM (Power Seat does not Return to Memorized Position) Click here

    OK

  2. CHECK ELECTRICAL REMOTE CONTROL MIRROR FUNCTION


    1. Check the electrical remote control mirror function.

      Click here

      OK
      Electrical remote control mirror function is normal.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO OTHER DIAGNOSTIC PROCEDURE (Power Mirror cannot be Adjusted with Power Mirror Switch) Click here

    OK

  3. READ VALUE USING GTS (MIRROR MEMORY NO.1, MIRROR MEMORY NO.2, MIRROR MEMORY NO.3)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. for LHD:


      1. Enter the following menus: Body Electrical / Front Left Door / Data List.

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


        Body Electrical > Front Left Door > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Mirror Memory No.1 Mirror position memorized in memory switch M1 OFF or ON

        OFF: Not memorized

        ON: Memorized

        		 -
        Mirror Memory No.2 Mirror position memorized in memory switch M2 OFF or ON

        OFF: Not memorized

        ON: Memorized

        		 -
        Mirror Memory No.3 Mirror position memorized in memory switch M3 OFF or ON

        OFF: Not memorized

        ON: Memorized

        		 -

        Body Electrical > Front Left Door > Data List
        Tester Display
        Mirror Memory No.1
        Mirror Memory No.2
        Mirror Memory No.3

    5. for RHD:


      1. Enter the following menus: Body Electrical / Front Right Door / Data List.

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


        Body Electrical > Front Right Door > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Mirror Memory No.1 Mirror position memorized in memory switch M1 OFF or ON

        OFF: Not memorized

        ON: Memorized

        		 -
        Mirror Memory No.2 Mirror position memorized in memory switch M2 OFF or ON

        OFF: Not memorized

        ON: Memorized

        		 -
        Mirror Memory No.3 Mirror position memorized in memory switch M3 OFF or ON

        OFF: Not memorized

        ON: Memorized

        		 -

        Body Electrical > Front Right Door > Data List
        Tester Display
        Mirror Memory No.1
        Mirror Memory No.2
        Mirror Memory No.3
      OK
      ON (Memorized) appears on the screen.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO OTHER DIAGNOSTIC PROCEDURE (Power Mirror Surface Position is not Memorized) Click here

    OK

  4. CHECK MEMORY AND REACTIVATION FUNCTION


    1. Turn the engine switch on (IG).

    2. Using the multiplex network master switch assembly, turn the mirror surface to the fully left position.

    3. Press the M1 switch while the SET switch is being pressed.

    4. Check that the buzzer sounds for 0.5 seconds and the mirror surface position is memorized.

    5. Using the multiplex network master switch assembly, turn the mirror surface to the fully right position.

    6. Press the M1 switch.

    7. Check that the buzzer sounds for 0.1 seconds and the outer mirror automatically moves to the memorized fully left position.

      Result
      Result Proceed to
      Memory and reactivation functions on both mirrors are not normal A
      Memory and reactivation function on driver door mirror is not normal B
      Memory and reactivation function on front passenger door mirror is not normal C

    A

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

    C

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

    B

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


    1. for LHD:


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

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        S10-5 (DVC) - S6-5 (VC) Always Below 1 Ω
        S10-5 (DVC) or S6-5 (VC) - Body ground Always 10 kΩ or higher
        S10-6 (VSSR) - S6-6 (VSSR) Always Below 1 Ω
        S10-6 (VSSR) or S6-6 (VSSR) - Body ground Always 10 kΩ or higher
        S10-13 (HSSR) - S6-13 (HSSR) Always Below 1 Ω
        S10-13 (HSSR) or S6-13 (HSSR) - Body ground Always 10 kΩ or higher
        S10-14 (DE2) - S6-14 (E1) Always Below 1 Ω

    2. for RHD:


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

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R10-5 (PVC) - R6-5 (VC) Always Below 1 Ω
        R10-5 (PVC) or R6-5 (VC) - Body ground Always 10 kΩ or higher
        R10-6 (VSSR) - R6-6 (VSSR) Always Below 1 Ω
        R10-6 (VSSR) or R6-6 (VSSR) - Body ground Always 10 kΩ or higher
        R10-13 (HSSR) - R6-13 (HSSR) Always Below 1 Ω
        R10-13 (HSSR) or R6-13 (HSSR) - Body ground Always 10 kΩ or higher
        R10-14 (PE2) - R6-14 (E1) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE OUTER MIRROR ACTUATOR ASSEMBLY (DRIVER DOOR)


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

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK MEMORY AND REACTIVATION FUNCTION


    1. Turn the engine switch on (IG).

    2. Using the multiplex network master switch assembly, turn the mirror surface to the fully left position.

    3. Press the M1 switch while the SET switch is being pressed.

    4. Check that the buzzer sounds for 0.5 seconds and the mirror surface position is memorized.

    5. Using the multiplex network master switch assembly, turn the mirror surface to the fully right position.

    6. Press the M1 switch.

    7. Check that the buzzer sounds for 0.1 seconds and the outer mirror automatically moves to the memorized fully left position.

      OK
      Memory and reactivation function operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (OUTER MIRROR ACTUATOR ASSEMBLY (DRIVER DOOR) WAS DEFECTIVE)

    NG

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

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


    1. for LHD:


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

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R10-5 (PVC) - R6-5 (VC) Always Below 1 Ω
        R10-5 (PVC) or R6-5 (VC) - Body ground Always 10 kΩ or higher
        R10-6 (VSSR) - R6-6 (VSSR) Always Below 1 Ω
        R10-6 (VSSR) or R6-6 (VSSR) - Body ground Always 10 kΩ or higher
        R10-13 (HSSR) - R6-13 (HSSR) Always Below 1 Ω
        R10-13 (HSSR) or R6-13 (HSSR) - Body ground Always 10 kΩ or higher
        R10-14 (PE2) - R6-14 (E1) Always Below 1 Ω

    2. for RHD:


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

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        S10-5 (DVC) - S6-5 (VC) Always Below 1 Ω
        S10-5 (DVC) or S6-5 (VC) - Body ground Always 10 kΩ or higher
        S10-6 (VSSR) - S6-6 (VSSR) Always Below 1 Ω
        S10-6 (VSSR) or S6-6 (VSSR) - Body ground Always 10 kΩ or higher
        S10-13 (HSSR) - S6-13 (HSSR) Always Below 1 Ω
        S10-13 (HSSR) or S6-13 (HSSR) - Body ground Always 10 kΩ or higher
        S10-14 (DE2) - S6-14 (E1) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. REPLACE OUTER MIRROR ACTUATOR ASSEMBLY (FRONT PASSENGER DOOR)


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

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  10. CHECK MEMORY AND REACTIVATION FUNCTION


    1. Turn the engine switch on (IG).

    2. Using the multiplex network master switch assembly, turn the mirror surface to the fully left position.

    3. Press the M1 switch while the SET switch is being pressed.

    4. Check that the buzzer sounds for 0.5 seconds and the mirror surface position is memorized.

    5. Using the multiplex network master switch assembly, turn the mirror surface to the fully right position.

    6. Press the M1 switch.

    7. Check that the buzzer sounds for 0.1 seconds and the outer mirror automatically moves to the memorized fully left position.

      OK
      Memory and reactivation function operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (OUTER MIRROR ACTUATOR ASSEMBLY (FRONT PASSENGER DOOR) WAS DEFECTIVE)

    NG

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