POWER MIRROR CONTROL SYSTEM Power Mirror Surface Position is not Memorized or does not Return to Memorized Position

DESCRIPTION

The front multiplex network door ECU LH and front multiplex network door ECU 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

Figure 1. for LH Side:

B004VWTE01

Figure 2. for RH Side:

B004VWTE02
*a Outer Rear View Mirror Assembly RH
*b Front Multiplex Network Door ECU RH
*c CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • The power mirror control system uses the CAN communication system. First, confirm that there is no malfunction in the CAN communication system. Refer to the How to Proceed with Troubleshooting procedure.

    Click here

  • Check that the memory and reactivation function of front power seat system is normal before performing the following procedure.

    Click here

PROCEDURE


  1. PROBLEM SYMPTOMS CONFIRMATION


    1. Check the problem symptoms.

      Result
      Result Proceed to
      LH side power mirror surface position is not memorized or does not return to memorized position A
      RH side power mirror surface position is not memorized or does not return to memorized position B

    B

    READ VALUE USING GTS Click here

    A

  2. READ VALUE USING GTS


    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 / Front Left Door / Data List.

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


      Body Electrical > Front Left Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Mirror Vertical Sensor Vol Vertical mirror position MIN: 0, MAX: 5 V 0 to 5 V -
      Mirror Horizontal Sensor Vol Horizontal mirror position MIN: 0, MAX: 5 V 0 to 5 V -

      Body Electrical > Front Left Door > Data List
      Tester Display
      Mirror Vertical Sensor Vol
      Mirror Horizontal Sensor Vol
      OK
      The sensor voltage changes depending on the mirror surface position.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here

    NG

  3. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH


    1. Remove the outer rear view mirror assembly LH.

      Click here

    2. Connect 3 dry cell batteries (1.5 V) in series.

      Note

      Do not use rechargeable batteries as they may not output a voltage of 1.5 V.

    3. B004RYKC02
      *a

      Component without connector connected

      (Outer Rear View Mirror Assembly LH)

      Connect the positive (+) end of a series of batteries to terminal 5 (VC) and the negative (-) end to terminal 14 (E1), and check that the voltage between the terminals change as shown in the table below depending on the position of the mirror surface.

      Note

      Do not apply a voltage of 6 V or higher between the terminals.

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

      Standard Voltage
      Tester Connection Mirror Surface Position Specified Condition
      z38-6 (VSRL) - z38-14 (E1) Down ←→ Up 0 to 4.5 V
      z38-13 (HSRL) - z38-14 (E1) Out ←→ In 0 to 4.5 V
      OK
      The voltage changes depending on the mirror surface position.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

  4. READ VALUE USING GTS


    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 / Front Right Door / Data List.

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


      Body Electrical > Front Right Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Mirror Vertical Sensor Vol Vertical mirror position MIN: 0, MAX: 5 V 0 to 5 V -
      Mirror Horizontal Sensor Vol Horizontal mirror position MIN: 0, MAX: 5 V 0 to 5 V -

      Body Electrical > Front Right Door > Data List
      Tester Display
      Mirror Vertical Sensor Vol
      Mirror Horizontal Sensor Vol
      OK
      The sensor voltage changes depending on the mirror surface position.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here

    NG

  5. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH


    1. Remove the outer rear view mirror assembly RH.

      Click here

    2. Connect 3 dry cell batteries (1.5 V) in series.

      Note

      Do not use rechargeable batteries as they may not output a voltage of 1.5 V.

    3. B004WDMC02
      *a

      Component without connector connected

      (Outer Rear View Mirror Assembly RH)

      Connect the positive (+) end of a series of batteries to terminal 5 (VC) and the negative (-) end to terminal 14 (E1), and check that the voltage between the terminals change as shown in the table below depending on the position of the mirror surface.

      Note

      Do not apply a voltage of 6 V or higher between the terminals.

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

      Standard Voltage
      Tester Connection Mirror Surface Position Specified Condition
      z37-6 (VSSR) - z37-14 (E1) Down ←→ Up 0 to 4.5 V
      z37-13 (HSSR) - z37-14 (E1) Out ←→ In 0 to 4.5 V
      OK
      The voltage changes depending on the mirror surface position.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here