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POWER MIRROR CONTROL SYSTEM(w/ Memory) Power Mirror Surface Position is not Memorized

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DTC Code DTC Name
  Power Mirror Surface Position is not Memorized
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DESCRIPTION

If either the M1, M2 or M3 seat memory switch is pressed, the outer mirror control ECU assembly (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. On receiving the seat memory switch signal, the main body ECU (multiplex network body ECU) sends the memory request signal to each outer mirror control ECU assembly via CAN communication. When receiving this signal, each outer mirror control ECU assembly stores the mirror surface position based on information from the mirror position sensor, which is built into the outer rear view mirror assembly.

Tip:

Each outer rear view mirror assembly has a built-in mirror vertical position sensor and mirror horizontal position sensor.

Note:

  • The mirror surface position will not be memorized if the power switch is not on (IG).

  • The mirror surface position will not be stored if the seat memory SET switch and 2 or more seat memory switches are pressed simultaneously.

  • If the operation fails, the mirror surface position will not be memorized until the seat memory SET switch is released and the operation is attempted again.

  • The mirror surface position will not be memorized when the mirror is operated manually.

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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


  1. Click here

    CHECK CAN COMMUNICATION SYSTEM


    1. Use the GTS to check if the CAN communication system is functioning normally (Click here).

      OK
      CAN communication DTCs are not output.

  2. Click here

    READ VALUE USING GTS (SEAT MEMORY SWITCH)


    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 / Mirror L / Data List.

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

      Table 1. Mirror L
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Seat Memory Switch1 Seat memory switch M1 signal/ ON or OFF

      ON: Seat memory switch M1 on

      OFF: Seat memory switch M1 off

      		 -
      Seat Memory Switch2 Seat memory switch M2 signal/ ON or OFF

      ON: Seat memory switch M2 on

      OFF: Seat memory switch M2 off

      		 -
      Seat Memory Switch3 Seat memory switch M3 signal/ ON or OFF

      ON: Seat memory switch M3 on

      OFF: Seat memory switch M3 off

      		 -
      Seat Memory Set SW Seat memory switch SET signal/ ON or OFF

      ON: Seat memory switch SET on

      OFF: Seat memory switch SET off

      		 -
      OK
      The GTS display changes between ON and OFF according to the switch operations.

  3. Click here

    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.

      OK
      The driver seat moves to the memorized position.

    • OKClick here
    • NG

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

  4. Click here

    CHECK MEMORY AND REACTIVATION FUNCTION


    1. A00040YE03

      Turn the power switch on (IG).

    2. Using the outer mirror 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 outer mirror 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 recorded fully left position.

      Result
      Result Proceed to
      Memory and reactivation functions on both mirrors are not normal A
      Memory and reactivation functions on driver door mirror are not normal B
      Memory and reactivation functions on front passenger door mirror are not normal C
      Table 2. Text in Illustration
      *a Turn to Fully Left Position

  5. Click here

    CHECK HARNESS AND CONNECTOR (SEAT MEMORY SWITCH - OUTER MIRROR CONTROL ECU ASSEMBLY)


    1. Disconnect the M9 outer mirror control ECU assembly connector.

    2. Disconnect the M10 seat memory switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      M10-4 (MMRY) - M9-1 (MM) Always Below 1 Ω
      M10-1 (1) - M9-2 (M1) Always Below 1 Ω
      M10-2 (2) - M9-3 (M2) Always Below 1 Ω
      M10-3 (3) - M9-4 (M3) Always Below 1 Ω
      M10-4 (MMRY) - Body ground Always 10 kΩ or higher
      M10-1 (1) - Body ground Always 10 kΩ or higher
      M10-2 (2) - Body ground Always 10 kΩ or higher
      M10-3 (3) - Body ground Always 10 kΩ or higher
      M10-5 (E) - Body ground Always 10 kΩ or higher

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    INSPECT SEAT MEMORY SWITCH


    1. A0009EHE01

      Remove the seat memory switch (Click here).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (1) - 5 (E) M1 Switch off → on 10 kΩ or higher → Below 1 Ω
      2 (2) - 5 (E) M2 Switch off → on 10 kΩ or higher → Below 1 Ω
      3 (3) - 5 (E) M3 Switch off → on 10 kΩ or higher → Below 1 Ω
      4 (MMRY) - 5 (E) SET Switch off → on 10 kΩ or higher → Below 1 Ω
      Table 3. Text in Illustration
      *a

      Component without harness connected

      (Seat Memory Switch)

    • OK

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

    • NG

      REPLACE SEAT MEMORY SWITCH (Click here)

  7. Click here

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY (DRIVER DOOR)


    1. Replace the outer rear view mirror assembly (driver door) (Click here).


  8. Click here

    CHECK MEMORY AND REACTIVATION FUNCTION


    1. A00040YE04

      Turn the power switch on (IG).

    2. Using the outer mirror 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 outer mirror 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 recorded fully left position.

      OK
      Memory and reactivation function is normal.
      Table 4. Text in Illustration
      *a Turn to Fully Left Position

    • OK

      END (OUTER REAR VIEW MIRROR ASSEMBLY (DRIVER DOOR) WAS DEFECTIVE)

    • NG

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

  9. Click here

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY (FRONT PASSENGER DOOR)


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


  10. Click here

    CHECK MEMORY AND REACTIVATION FUNCTION


    1. A00040YE05

      Turn the power switch on (IG).

    2. Using the outer mirror 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 outer mirror 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 recorded fully left position.

      OK
      Memory and reactivation function is normal.
      Table 5. Text in Illustration
      *a Turn to Fully Left Position

    • OK

      END (OUTER REAR VIEW MIRROR ASSEMBLY (FRONT PASSENGER DOOR) WAS DEFECTIVE)

    • NG

      REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR) (Click here)