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Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (MIRROR RETRACT FUNCTION) 
    1. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check the mirror retract function.

      Multiplex network door ECU front LH, RH (driver, front passenger door ECU) 

      DRIVER, FRONT PASSENGER DOOR ECU SPECIFICATION

      Item Test Details Diagnostic Note
      MIR FOLD/RETRN Operate mirror retract FOLD/RETRN -

      Result 

      RESULT REFERENCE

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

    B: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU) 

    C: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT RH (FRONT PASSENGER DOOR ECU) 

    A: Go to Next step 

  2. CHECK WIRE HARNESS (MULTIPLEX NETWORK DOOR ECU FRONT LH OR RH BATTERY AND BODY GROUND) 
    1. Disconnect the D19 or P11 ECU connector.
      Fig 1: Identifying D19 And P11 ECU Connector Terminals
      G05293562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage of the wire harness side connector.

      Standard voltage: 

      Multiplex network door ECU front LH (driver door ECU) 

      VOLTAGE SPECIFICATION

      Tester Connection Specified Condition
      D19-6 (BDR) - Body ground 10 to 14 V

      Multiplex network door ECU front RH (front passenger door ECU) 

      VOLTAGE SPECIFICATION

      Tester Connection Specified Condition
      P11-6 (BDR) - Body ground 10 to 14 V
    3. Measure the resistance of the wire harness side connector.

      Standard resistance: 

      Multiplex network door ECU front LH (driver door ECU) 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition
      D19-1 (GND) - Body ground Below 1 Ω

      Multiplex network door ECU front RH (front passenger door ECU) 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition
      P11-1 (GND) - Body ground Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next step 

  3. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH OR RH (RETRACTABLE MIRROR MOTOR) 
    1. Disconnect the R14 or R15 mirror connector.
    2. Apply battery voltage and check the operation of the retractable mirror.
      NOTE:
      • Disconnect and reconnect the battery once between each mirror position check.
      • The mirror position cannot be changed manually when the battery is connected. To change the mirror position manually, the battery must be disconnected first.

      OK 

      MIRROR SPECIFICATION

      Measurement Condition Mirror Condition Specified Condition
      Battery positive (+) → Terminal 3
      Battery negative (-) → Terminal 11      		 Retracted position Moves from retracted position to driving position
      Battery positive (+) → Terminal 11
      Battery negative (-) → Terminal 3      		 Driving position Moves from driving position to retracted position
      Fig 2: Identifying R14 Or R15 Mirror Connector Terminals
      G05293563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Result Proceed to
      Driver side is as specified A
      Front passenger side is as specified B
      Driver side is not as specified C
      Front passenger side is not as specified D

    B: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT RH (FRONT PASSENGER DOOR ECU) 

    C: REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH 

    D: REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH 

    A: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU) 

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