POWER MIRROR CONTROL SYSTEM (w/ Memory) Wireless-linked Return Function does not Operate

DESCRIPTION

When the vehicle doors are unlocked through wireless unlock or entry unlock operation, the certification ECU (smart key ECU assembly) sends the key ID signal and smart memory call request signal to the main body ECU (multiplex network body ECU). When the main body ECU (multiplex network body ECU) receives the signal and the driver door is opened, the ECU sends the memory call command signal for the received key ID to each outer mirror control ECU assembly. On receiving the memory call command signal, each outer mirror control ECU assembly moves the mirror surface to the stored position.

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK MEMORY CALL FUNCTION (MEMORY REGISTRATION)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

    5. After performing any of the following procedures to link the key and a switch, check the Data List to confirm that the key and switch have been linked.

    6. With the engine switch on (IG) and the driver side door closed, press and hold the M1, M2 or M3 switch. The main body ECU (multiplex network body ECU) will enter electrical key transmitter sub-assembly recognition code registration mode to allow a key to be linked to mirror surface memory position.

      Tech Tips

      If the seat memory switch is released before entering registration mode, the main body ECU (multiplex network body ECU) will not enter registration mode.

    7. When the manual door lock switch is pressed, check that the buzzer of the front power seat switch LH sounds once (0.5 seconds).

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Mem SW No. w/KeyID1 Switch linked with key ID1 / NONE, MEM SW1, MEM SW2, or MEM SW3

      NONE: No switches linked with key ID1

      MEM SW1: M1 linked with key ID1

      MEM SW2: M2 linked with key ID1

      MEM SW3: M3 linked with key ID1

      		 -
      Mem SW No. w/KeyID2 Switch linked with key ID2 / NONE, MEM SW1, MEM SW2, or MEM SW3

      NONE: No switches linked with key ID2

      MEM SW1: M1 linked with key ID2

      MEM SW2: M2 linked with key ID2

      MEM SW3: M3 linked with key ID2

      		 -
      Mem SW No. w/KeyID3 Switch linked with key ID3 / NONE, MEM SW1, MEM SW2, or MEM SW3

      NONE: No switches linked with key ID3

      MEM SW1: M1 linked with key ID3

      MEM SW2: M2 linked with key ID3

      MEM SW3: M3 linked with key ID3

      		 -
      Mem SW No. w/KeyID4 Switch linked with key ID4 / NONE, MEM SW1, MEM SW2, or MEM SW3

      NONE: No switches linked with key ID4

      MEM SW1: M1 linked with key ID4

      MEM SW2: M2 linked with key ID4

      MEM SW3: M3 linked with key ID4

      		 -
      Mem SW No. w/KeyID5 Switch linked with key ID5 / NONE, MEM SW1, MEM SW2, or MEM SW3

      NONE: No switches linked with key ID5

      MEM SW1: M1 linked with key ID5

      MEM SW2: M2 linked with key ID5

      MEM SW3: M3 linked with key ID5

      		 -
      Mem SW No. w/KeyID6 Switch linked with key ID6 / NONE, MEM SW1, MEM SW2, or MEM SW3

      NONE: No switches linked with key ID6

      MEM SW1: M1 linked with key ID6

      MEM SW2: M2 linked with key ID6

      MEM SW3: M3 linked with key ID6

      		 -
      Mem SW No. w/KeyID7 Switch linked with key ID7 / NONE, MEM SW1, MEM SW2, or MEM SW3

      NONE: No switches linked with key ID7

      MEM SW1: M1 linked with key ID7

      MEM SW2: M2 linked with key ID7

      MEM SW3: M3 linked with key ID7

      		 -
      OK
      The Data List shows that the key ID has been linked to a switch (M1, M2 or M3).

    NG

    GO TO OTHER DIAGNOSIS PROCEDURE (Wireless Transmitter Memory Function does not Operate) Click here

    OK

  2. CHECK MEMORY CALL FUNCTION


    1. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      Result
      Result Proceed to
      The memory call function does not operate together with wireless door unlock operation only. A
      The memory call function does not operate together with entry unlock operation only. B
      The memory call function does not operate at all. C

    B

    CHECK SMART ENTRY AND START SYSTEM (for ENTRY FUNCTION) Click here

    C

    CHECK MEMORY CALL FUNCTION Click here

    A

  3. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS


    1. Check wireless door lock control operation Click here.

      OK
      Wireless door lock control operation is normal.

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (PROBLEM SYMPTOMS TABLE) Click here

    OK

  4. CHECK MEMORY AND SEAT RESTORING OPERATION (POWER SEAT CONTROL SYSTEM)


    1. Check memory and seat restoring operation Click here.

      OK
      Memory and seat restoring operation is normal.

    NG

    READ VALUE USING GTS (DOOR COURTESY SWITCH) Click here

    OK

  5. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY


    1. Replace the outer mirror control ECU assembly (driver door) and (front passenger door) Click here.


    NEXT

  6. CHECK MEMORY CALL FUNCTION


    1. Perform registration for memory call function Click here.

    2. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      OK
      Memory call function is normal.

    NG

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

    OK

    END (OUTER MIRROR CONTROL ECU ASSEMBLY WAS DEFECTIVE)

  7. READ VALUE USING GTS (DOOR COURTESY SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

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

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FL Door Courtesy SW Driver door courtesy switch condition/ ON or OFF

      ON: Door courtesy switch on (driver door open)

      OFF: Door courtesy switch off (driver door closed)

      		 -
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.

    NG

    GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit) Click here

    OK

  8. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Replace the main body ECU (multiplex network body ECU) Click here.


    NEXT

  9. CHECK MEMORY CALL FUNCTION


    1. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      OK
      Memory call function is normal.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) WAS DEFECTIVE)

  10. CHECK SMART ENTRY AND START SYSTEM (for ENTRY FUNCTION)


    1. Check the smart entry and start system (for entry function) operation Click here.

      OK
      Smart entry and start system operation is normal.

    NG

    GO TO SMART ENTRY AND START SYSTEM (PROBLEM SYMPTOMS TABLE) Click here

    OK

  11. CHECK MEMORY AND SEAT RESTORING OPERATION (POWER SEAT CONTROL SYSTEM)


    1. Check memory and seat restoring operation Click here.

      OK
      Memory and seat restoring operation is normal.

    NG

    READ VALUE USING GTS (DOOR COURTESY SWITCH) Click here

    OK

  12. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY


    1. Replace the outer mirror control ECU assembly (driver door) and (front passenger door) Click here.


    NEXT

  13. CHECK MEMORY CALL FUNCTION


    1. Perform registration for memory call function Click here.

    2. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      OK
      Memory call function is normal.

    NG

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

    OK

    END (OUTER MIRROR CONTROL ECU ASSEMBLY WAS DEFECTIVE)

  14. READ VALUE USING GTS (DOOR COURTESY SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

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

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FL Door Courtesy SW Driver door courtesy switch condition/ ON or OFF

      ON: Door courtesy switch on (driver door open)

      OFF: Door courtesy switch off (driver door closed)

      		 -
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.

    NG

    GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit) Click here

    OK

  15. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Replace the main body ECU (multiplex network body ECU) Click here.


    NEXT

  16. CHECK MEMORY CALL FUNCTION


    1. Perform registration for memory call function Click here.

    2. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      OK
      Memory call function is normal.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (MAIN BODY ECU WAS DEFECTIVE)

  17. CHECK MEMORY CALL FUNCTION


    1. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      OK
      Memory call function is normal.

    NG

    READ VALUE USING GTS (DOOR COURTESY SWITCH) Click here

    OK

  18. CHECK REACTIVATION FUNCTION


    1. A01G8XME01
      Text in Illustration
      *a Turn to Fully Left Position

      Turn the engine 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. A01G5XPE01
      Text in Illustration
      *a Turn to Fully Right Position

      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
      Mirror function is normal.

    NG

    CHECK REMOTE CONTROL MIRROR FUNCTION Click here

    OK

  19. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY


    1. Replace the outer mirror control ECU assembly (driver door) and (front passenger door) Click here.


    NEXT

  20. CHECK MEMORY CALL FUNCTION


    1. Perform registration for memory call function Click here.

    2. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      OK
      Memory call function is normal.

    NG

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

    OK

    END (OUTER MIRROR CONTROL ECU ASSEMBLY WAS DEFECTIVE)

  21. READ VALUE USING GTS (DOOR COURTESY SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

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

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FL Door Courtesy SW Driver door courtesy switch condition/ ON or OFF

      ON: Door courtesy switch on (driver door open)

      OFF: Door courtesy switch off (driver door closed)

      		 -
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.

    NG

    GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit) Click here

    OK

  22. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Replace the main body ECU (multiplex network body ECU) Click here.


    NEXT

  23. CHECK MEMORY CALL FUNCTION


    1. Perform registration for memory call function Click here.

    2. Perform a wireless door unlock operation and check that opening the driver side door causes the following:


      • The buzzer sounds for 0.1 seconds.

      • The mirror surface position automatically moves to a stored position.

      OK
      Memory call function is normal.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) WAS DEFECTIVE)

  24. CHECK REMOTE CONTROL MIRROR FUNCTION


    1. Check remote control mirror function Click here.

      OK
      Remote control mirror function is normal.

    NG

    GO TO OTHER DIAGNOSIS PROCEDURE (PROBLEM SYMPTOMS TABLE) Click here

    OK

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Click here