Inspection Procedure

USE LEXUS HAND-HELD TESTER
1. NO: Go to step 3
2. YES: GO TO NEXT STEP.
PERFORM ACTIVE TEST OF LEXUS HAND-HELD TESTER
Using the hand-held tester, check the door mirror control switch condition by the active test.

DOOR ECU

Standard:

Fig 1: Door Mirror Control Switch Condition - Door ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:
- If the driver's side mirror malfunctions, proceed to OK-A.
- If the passenger's side mirror malfunctions, proceed to OK-B.
1. OK-A: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
2. OK-B: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU FRONT RH (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
3. NG: Go to step 4
CHECK OPERATION OF OUTER REAR VIEW MIRROR
Disconnect the door ECU connector, and then check that the mirror operates when the battery positive voltage is applied to the vehicle's side wire harness.

HINT:
- If the driver's side mirror malfunctions, proceed to OK-A.
- If the passenger's side mirror malfunctions, proceed to OK-B.
1. OK-A: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
2. OK-B: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU FRONT RH (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
3. NG: GO TO NEXT STEP.
INSPECT OUTER REAR VIEW MIRROR
1. Check the continuity between each terminal of the outer rear view mirror.
  Standard:
  
  Fig 2: Continuity Between Each Terminal Of The Outer Rear View Mirror Specifications
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Identifying Outer Rear View Mirror Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- If the driver's side mirror malfunctions, proceed to NG-A.
- If the passenger's side mirror malfunctions, proceed to NG-B.
1. NG-A: REPLACE OUTER REAR VIEW MIRROR ASSY LH
2. NG-B: REPLACE OUTER REAR VIEW MIRROR ASSY RH
3. OK: GO TO NEXT STEP.
CHECK WIRE HARNESS (OUTER REAR VIEW MIRROR - DOOR ECU)
1. Disconnect the outer rear view mirror and door ECU connectors.
2. Check the continuity between each terminal of the outer rear view mirror vehicle's side connector and the door ECU vehicle's side connector (See TERMINALS OF ECU ).
  Standard: (Driver side)
  
  Fig 4: Specified Condition Driver Side Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard: (Passenger side)
  
  Fig 5: Specified Condition Passenger Side Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 6: Identifying Outer Rear View Mirror And ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
- In case of the driver's side wire harness, proceed to OK-A.
- In case of the passenger's side wire harness, proceed to OK-B.
1. OK-A: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
2. OK-B: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU FRONT RH (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
3. NG: GO TO NEXT STEP.
REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR