POWER MIRROR CONTROL SYSTEM Power Mirror Surface Position is not Memorized

DESCRIPTION

When the seat memory switch is operated, the switch input signal is sent via CAN communication from the outer mirror control ECU assembly LH*1 or 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

A01MK04E03
A01MK04E04

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. CHECK OUTER REAR VIEW MIRROR ASSEMBLY FUNCTION


    1. Check that the mirror operates.

      Click here

      OK
      Mirror operates normally.
      Result
      Result Proceed to
      OK A
      NG (Driver side outer rear view mirror assembly does not operate) B
      NG (Front passenger side outer rear view mirror assembly does not operate) C

    B

    GO TO OTHER FLOWCHART (Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch) Click here

    C

    GO TO OTHER FLOWCHART (Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch) Click here

    A

  2. CHECK SEAT MEMORY SWITCH (SEAT POSITION MEMORY FUNCTION)


    1. Perform a seat memory operation properly.

      Click here

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

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

    NG

    GO TO FRONT POWER SEAT CONTROL SYSTEM Click here

    OK

  3. READ VALUE USING GTS


    1. Using the GTS, read the Data List.

      Click here


      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

      		 -

      Body Electrical > Mirror L > Data List
      Tester Display
      Mirror Memory No.1
      Mirror Memory No.2

      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

      		 -

      Body Electrical > Mirror R > Data List
      Tester Display
      Mirror Memory No.1
      Mirror Memory No.2
      OK
      The display is as specified in the normal condition column.
      Result
      Result Proceed to
      LH side mirror position cannot be memorized A
      LH side mirror position memory exists but cannot be recalled B
      RH side mirror position cannot be memorized C
      RH side mirror position memory exists but cannot be recalled D
      Both LH side mirror position and RH side mirror position cannot be memorized (for LHD) E
      Both LH side mirror position and RH side mirror position cannot be memorized (for RHD) F

    B

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Click here

    C

    CHECK OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    D

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Click here

    E

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

    F

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

    A

  4. CHECK SEAT MEMORY SWITCH


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

      Click here

    2. Check that the mirror operates.

      OK
      Mirror operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (OUTER REAR VIEW MIRROR ASSEMBLY LH IS DEFECTIVE)

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Click here

  5. CHECK 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 mirror operates.

      OK
      Mirror operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (OUTER REAR VIEW MIRROR ASSEMBLY RH IS DEFECTIVE)

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Click here