POWER MIRROR CONTROL SYSTEM Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

SYSTEM DESCRIPTION

This circuit detects the conditions of the mirror retract switch.

The multiplex network master switch assembly sends information about the operating condition of the mirror retract switch (switch input signals) through the CAN communication line. Then the switch input signals are sent to the outer mirror control ECU assembly LH and RH.

WIRING DIAGRAM

A01WT0RE04

CAUTION / NOTICE / HINT

Note


  • The power mirror control system uses the CAN communication system and LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power mirror control system after confirming that the communication systems are functioning properly (See page ).

    Click here

  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Entry and Start System (for Entry Function) Click here.

PROCEDURE


  1. READ VALUE USING GTS (MIRROR RETRACT SWITCH)


    1. Check the Data List for proper functioning of the mirror retract switch Click here.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Outer Mirror Fold SW Mirror retract switch signal (fold) / ON or OFF

      ON: Switch in fold position

      OFF: Switch not in fold position

      		 -
      Auto Mirror SW Mirror retract switch signal (AUTO) / ON or OFF

      ON: Switch in AUTO position

      OFF: Switch not in AUTO position

      		 -
      OK
      On the GTS screen, each item changes between ON and OFF according to above chart.

    NG

    CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here

    OK

  2. CHECK MALFUNCTIONING PARTS


    1. Check the malfunction parts.

      Result
      Result Proceed to
      Both outer rear view mirror assembly LH and RH are malfunction (for LHD) A
      Both outer rear view mirror assembly LH and RH are malfunction (for RHD) B
      Only outer rear view mirror assembly LH is malfunction C
      Only outer rear view mirror assembly RH is malfunction D

    A

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

    B

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

    D

    INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    C

  3. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH


    1. Remove the outer rear view mirror assembly LH Click here.

    2. Inspect the outer rear view mirror assembly LH Click here.


    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - OUTER MIRROR CONTROL ECU ASSEMBLY LH)


    1. Disconnect the I35 outer rear view mirror assembly LH connector.

    2. Disconnect the I40 outer mirror control ECU assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I35-19 (MR) - I40-3 (MR+) Always Below 1 Ω
      I35-20 (MF) - I40-11 (MR-) Always Below 1 Ω
      I35-19 (MR) or I40-3 (MR+) - Body ground Always 10 kΩ or higher
      I35-20 (MF) or I40-11 (MR-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH


    1. Remove the outer rear view mirror assembly RH Click here.

    2. Inspect the outer rear view mirror assembly RH Click here.


    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - OUTER MIRROR CONTROL ECU ASSEMBLY RH)


    1. Disconnect the I33 outer rear view mirror assembly RH connector.

    2. Disconnect the I37 outer mirror control ECU assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I33-19 (MR) - I37-3 (MR+) Always Below 1 Ω
      I33-20 (MF) - I37-11 (MR-) Always Below 1 Ω
      I33-19 (MR) or I37-3 (MR+) - Body ground Always 10 kΩ or higher
      I33-20 (MF) or I37-11 (MR-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


    1. Replace the multiplex network master switch assembly with a new or known good one Click here.

    2. Check the power retract mirror function Click here.

      OK
      Power retract mirror function operates normally.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE)

    B

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

    C

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