POWER MIRROR CONTROL SYSTEM(w/ Reverse Shift-linked Mirror) Power Mirror Surface Position is not Memorized

DESCRIPTION

When the seat memory switch is operated, the switch input signal is sent via direct line from the outer mirror control ECU assembly LH*1 and RH*2 to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then sends the memorization request or recall request signals to the outer mirror control ECU assembly LH and outer mirror control ECU assembly RH via CAN communication. The outer mirror control ECU assembly LH and outer mirror control ECU assembly RH memorize the mirror position when a memorization request signal is received, and move the mirror to the memorized position when a recall request signal is received.


WIRING DIAGRAM

B001I23E01

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 the Service Bulletin.

  • As the door control battery is installed between the vehicle battery and main body ECU (multiplex network body ECU), first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (multiplex network body ECU) before performing this troubleshooting procedure.*

    *: w/ Door Control Battery

PROCEDURE


  1. READ VALUE USING GTS


    1. Using the GTS, read the Data List.

      Click here


      1. for LH side:

        Body Electrical > Mirror L > 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

        		 Only item displayed (not supported)

      2. for RH side:

        Body Electrical > Mirror R > 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

        		 Only item displayed (not supported)
        OK
        The display is as specified in the normal condition column.
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT SEAT MEMORY SWITCH Click here

    OK

  2. CHECK SEAT MEMORY SWITCH FUNCTION


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

      Click here

      OK
      The 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

  3. CHECK MEMORY AND REACTIVATION FUNCTION


    1. B001CX8C02
      *a Turn to Fully Left Position

      Turn the ignition switch to ON.

    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 functions on front door LH mirror are not normal B
      Memory and reactivation functions on front door RH mirror are not normal C

    A

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

    C

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    B

  4. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH


    1. Temporarily replace the outer rear view mirror assembly LH with a new or normally functioning one.

      Click here

    2. Check that the memory and reactivation function operates.

      Click here

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

    NEXT

  5. CHECK MEMORY AND REACTIVATION FUNCTION


    1. B001CX8C02
      *a Turn to Fully Left Position

      Turn the ignition switch to ON.

    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
      Proceed to
      OK
      NG

    OK

    END (OUTER REAR VIEW MIRROR ASSEMBLY LH IS DEFECTIVE)

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here

  6. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH


    1. Temporarily replace the outer rear view mirror assembly RH with a new or normally functioning one.

      Click here

    2. Check that the memory and reactivation function operates.

      Click here

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

    NEXT

  7. CHECK MEMORY AND REACTIVATION FUNCTION


    1. B001CX8C02
      *a Turn to Fully Left Position

      Turn the ignition switch to ON.

    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
      Proceed to
      OK
      NG

    OK

    END (OUTER REAR VIEW MIRROR ASSEMBLY RH IS DEFECTIVE)

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH Click here

  8. INSPECT SEAT MEMORY SWITCH


    1. Remove the seat memory switch.

      Click here

    2. Inspect the seat memory switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SEAT MEMORY SWITCH Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (SEAT MEMORY SWITCH - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])


    1. Disconnect the G217 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the K9*1 or J10*2 seat memory switch connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      G217-16 (MM) - K9-2 (MMRY) Always Below 1 Ω
      G217-16 (MM) or K9-2 (MMRY) - Body ground Always 10 kΩ or higher
      G217-13 (M1) - K9-3 (1) Always Below 1 Ω
      G217-13 (M1) or K9-3 (1) - Body ground Always 10 kΩ or higher
      G217-14 (M2) - K9-2 (2) Always Below 1 Ω
      G217-14 (M2) - K9-2 (2) - Body ground Always 10 kΩ or higher
      K9-1 (E) - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      G217-16 (MM) - J10-2 (MMRY) Always Below 1 Ω
      G217-16 (MM) or J10-2 (MMRY) - Body ground Always 10 kΩ or higher
      G217-13 (M1) - J10-3 (1) Always Below 1 Ω
      G217-13 (M1) or J10-3 (1) - Body ground Always 10 kΩ or higher
      G217-14 (M2) - J10-2 (2) Always Below 1 Ω
      G217-14 (M2) - J10-2 (2) - Body ground Always 10 kΩ or higher
      J10-1 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR