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Home >> Lexus >> 2002 >> SC 430 >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Power Mirror Control System - Diagnosis >> Both Of Driver And Passenger Power Mirrors Cannot Be Adjusted Manually (Flow Chart 3) >> Inspection Procedure

Inspection Procedure

  1. USE LEXUS HAND-HELD TESTER 
    1. NO: GO TO STEP   3 
    2. YES: GO TO NEXT STEP 
  2. READ VALUE OF LEXUS HAND-HELD TESTER 
    1. ECU DATA MONITOR
      1. Make a judgement of good or bad and find out a malfunctioning part by the data monitor.

      Standard: 

    DRIVER SIDE J/B (DRIVER SIDE J/B ECU) 

    Standard: 

    STANDARD CHART

    Item Condition Specified condition
    MIRR SEL SWL Right/Left adjustment switch in neutral --> LEFT ON --> OFF
    MIRR SEL SWR Right/Left adjustment switch in neutral --> RIGHT ON --> OFF
    ITEM CONDITION

    Item Condition Specified condition
    MIRR POS SW L Mirror switch in neutral-->LEFT ON --> OFF
    MIRR POS SW R Mirror switch in neutral-->RIGHT ON --> OFF
    MIRR POS SW UP Mirror switch in neutral-->UP ON --> OFF
    MIRR POS SW DWN Mirror switch in neutral-->DOWN ON --> OFF
    1. OK: REPLACE DRIVER SIDE JUNCTION BLOCK 
    2. NG: GO TO NEXT STEP 
  3. CHECK OUTER MIRROR SWITCH ASSY 
    1. Check the continuity between each terminal of the outer mirror switch.
      1. Right/Left adjustment switch.

        Standard: 

        STANDARD CHART

        Switch position Terminals Specified condition
        LEFT 8 <=> 9 100 <=>
        RIGHT 8 <=> 9 Continuity
        Fig 1: Checking Continuity Between Terminal Of Outer Mirror Switch
        G03386876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Mirror switch.

        Standard: 

      STANDARD CHART

      Switch position Terminals Specified condition
      UP 7 <=> 9 Approx. 100 <=>
      RIGHT 7 <=> 9 250 <=>
      DOWN 7 <=> 9 470 <=>
      LEFT 7 <=> 9 800 <=>
      Fig 2: Identifying Connector R4 & D5
      G03386877Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE OUTER MIRROR SWITCH ASSY 
    2. OK: GO TO NEXT STEP 
  4. CHECK WIRE HARNESS(MIRROR SWITCH - DRIVER SIDE J/B) 
    1. Disconnect the mirror switch and driver side J/B connectors.
    2. Check the continuity between each terminal of the mirror switch vehicle's side connector and the driver side J/B vehicle's side connector. (See BOTH OF DRIVER AND PASSENGER POWER MIRRORS CANNOT BE ADJUSTED MANUALLY (FLOW CHART 3) )

      Standard: 

      STANDARD CHART

      Terminals (Mirror SW - Driver J/B) Specified condition
      R4-7 <=> D5-11 (M+ <=> M+ ) Continuity
      R4-8 <=> D5-10 (MSW <=> MSW) Continuity
      R4-9 <=> D5-7 (E <=> R/E) Continuity
    1. NG: REPAIR OR REPLACE WIRE HARNESS 
    2. OK: REPLACE DRIVER SIDE JUNCTION BLOCK 
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