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Home >> Lexus >> 2008 >> LS 460L >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Power Mirror Control System >> Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch >> Inspection Procedure
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Inspection Procedure

  1. CHECK DTC 
    1. Use the Techstream to check if the CAN communication system is functioning normally.

      Result: 

      RESULT CHART

      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B

    B: GO TO CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    A: Go to Next Step 

  2. READ VALUE OF TECHSTREAM (MIRROR MASTER SWITCH AND MIRROR CONTROL SWITCH) 
    1. Check the Data List for proper functioning of the mirror master switch and mirror control switch.

      D-SEAT SW 

      D-SEAT SW REFERENCE CHART

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Mirror Selection SW (Left) Mirror master switch signal for LH mirror / ON or OFF ON: Switch is in L position
      OFF: Switch is OFF or in R position
      -
      Mirror Adjustment Right Mirror control switch signal (RIGHT) / ON or OFF ON: RIGHT switch is ON
      OFF: Any switch except RIGHT is ON or all switches are OFF
      -
      Mirror Adjustment Left Mirror control switch signal (LEFT) / ON or OFF ON: LEFT switch is ON
      OFF: Any switch except LEFT is ON or all switches are OFF
      -
      Mirror Adjustment Up Mirror control switch signal (UP) / ON or OFF ON: UP switch is ON
      OFF: Any switch except UP is ON or all switches are OFF
      -
      Mirror Adjustment Down Mirror control switch signal (DOWN) / ON or OFF ON: DOWN switch is ON
      OFF: Any switch except DOWN is ON or all switches are OFF
      -

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

    NG: REPLACE OUTER MIRROR SWITCH ASSEMBLY  (See REMOVAL  )

    OK: Go to Next Step 

  3. PERFORM ACTIVE TEST BY TECHSTREAM (POWER MIRROR CONTROL FUNCTION) 
    1. Select the Active Test, use the Techstream to generate a control command, and then check the power mirror control function.

      Driver Door 

      DRIVER DOOR REFERENCE CHART

      Tester Display Test Part Control Range
      Mirror Up / Down Mirror vertical operation UP/DOWN
      Mirror Right / Left Mirror horizontal operation RIGHT / LEFT

      Result: 

      RESULT CHART

      Result Proceed to
      Outer rear view mirror LH does not operate normally A
      Outer rear view mirror LH operates normally B

    B: REPLACE OUTER MIRROR SWITCH ASSEMBLY  (See REMOVAL  )

    A: Go to Next Step 

  4. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH (LEFT / RIGHT MOTOR, UP / DOWN MOTOR) 
    1. Remove the mirror LH (see REMOVAL  ).
    2. Apply battery voltage and check the operation of the power mirror.

      OK 

      MEASUREMENT CONDITION SPECIFIED CONDITION REFERENCE CHART

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 1 (RMVR)
      Battery negative (-) → Terminal 10 (RM+R)
      Turns upward (A)
      Battery negative (-) → Terminal 1 (RMVR)
      Battery positive (+) → Terminal 10 (RM+R)
      Turns downward (B)
      Battery positive (+) → Terminal 9 (RMHR)
      Battery negative (-) → Terminal 10 (RM+R)
      Turns left (C)
      Battery negative (-) → Terminal 9 (RMHR)
      Battery positive (+) → Terminal 10 (RM+R)
      Turns right (D)
      Fig 1: Identifying Outer Rear View Mirror LH Connector Terminals
      G04952272Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH  (See REMOVAL  )

    OK: REPLACE FRONT DOOR ECU LH  (See COMPONENTS )