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

DTC Code DTC Name
Power Mirrors do not Return to Memorized Position

SYSTEM DESCRIPTION

If the M1 or M2 seat memory switch is pressed, the outer mirror control ECU assembly LH detects the seat memory switch status and sends the switch signal to the main body ECU (multiplex network body ECU) via CAN communication. The main body ECU (multiplex network body ECU) sends back restore signals to each outer mirror control ECU assembly via CAN communication. When receiving the restore signals, each outer mirror control ECU assembly 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

B249581E03

PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

    1. Check if a CAN communication DTC is output.

      Click hereClick here

      Result

      Result

      Proceed to

      DTC is not output

      A

      DTC is output

      B
    B

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    A

  2. CHECK POWER MIRROR CONTROL FUNCTION (ELECTRICAL REMOTE CONTROL MIRROR FUNCTION)

    1. Check the electrical remote control mirror function.

      Click here

      OK

      Electrical remote control mirror function is normal.

      Result

      Result

      OK

      NG
    NG

    GO TO PROBLEM SYMPTOMS TABLE

    Click here

    OK

  3. CHECK SEAT MEMORY SWITCH FUNCTION (MIRROR MEMORY FUNCTION)

    1. Use the seat memory switch to record the mirror position.

      Click here

    2. Refer to the Data List for the mirror L and check that the memory operation is completed normally.

      OK

      Mirror position is recorded normally.

      Result

      Result

      OK

      NG
    NG

    GO TO PROBLEM SYMPTOMS TABLE

    Click here

    OK

  4. CHECK SEAT MEMORY SWITCH FUNCTION (MIRROR RESTORING OPERATION)

    1. Check the mirror restoring operation.

      Click here

      Result

      Result

      Proceed to

      Both mirrors do not operate normally

      A

      Either mirror does not operate normally

      B
    A

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    B

  5. READ VALUE USING INTELLIGENT TESTER (MIRROR POSITION SENSOR)

    1. Using the intelligent tester, read the Data List.

      Click here

      Body Electrical > Mirror L > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Mirror Vertical Sensor Vol

      Vertical mirror position

      MIN: 0, MAX: 4.98 V

      Within range from 0 to 4.98 V

      -

      Mirror Horizontal Sensor Vol

      Horizontal mirror position

      MIN: 0, MAX: 4.98 V

      Within range from 0 to 4.98 V

      -

      Body Electrical > Mirror R > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Mirror Vertical Sensor Vol

      Vertical mirror position

      MIN: 0, MAX: 4.98 V

      Within range from 0 to 4.98 V

      -

      Mirror Horizontal Sensor Vol

      Horizontal mirror position

      MIN: 0, MAX: 4.98 V

      Within range from 0 to 4.98 V

      -

      OK

      Output voltage is as shown in table above.

      Result

      Result

      Proceed to

      Driver side mirror does not operate normally

      A

      Driver side mirror operates normally

      B

      Passenger side mirror does not operate normally

      C

      Passenger side mirror operates normally

      D
    B

    REPLACE REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH

    Click here

    C

    CHECK OUTER MIRROR CONTROL ECU ASSEMBLY RHClick here

    D

    REPLACE REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

    Click here

    A

  6. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY LH

    1. B249580C01

      *a

      Component with harness connected

      (Outer Mirror Control ECU Assembly LH)

      Remove the outer mirror control ECU LH with its connectors still connected.

      Click here

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      z3-5 (LVC) - z3-14 (LE1)

      Engine switch on (IG)

      4.7 to 5.3 V

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      z3-14 (LE1) - Body ground

      Always

      Below 1 Ω

      Result

      Result

      OK

      NG
    OK

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

    Click here

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH

    Click here

  7. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY RH

    1. B249580C02

      *a

      Component with harness connected

      (Outer Mirror Control ECU Assembly RH)

      Remove the outer mirror control ECU RH with its connectors still connected.

      Click here

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      z2-5 (RVC) - z2-14 (RE1)

      Engine switch on (IG)

      4.7 to 5.3 V

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      z2-14 (RE1) - Body ground

      Always

      Below 1 Ω

      Result

      Result

      OK

      NG
    OK

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

    Click here

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

    Click here