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Home >> Lexus >> 2009 >> LS 460 AWD >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sliding Roof >> Sliding Roof System >> Sliding Roof Control Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM (SLIDING ROOF OPERATION) 
    1. Select the Active Test, use the Techstream to generate a control command, and then check that the sliding roof slides open/close and tilts up/down.

      Sliding Roof 

      ITEM RANGE REFERENCE

      Tester Display Test Part Control Range
      Slide Roof Operate sliding roof SLIDE CLOSE/TILT UP CLOS/UP: Sliding roof
      SLIDE CLOSE or TILT UP operation occurs.
      OFF: Sliding roof is not operating
      Slide Roof Operate sliding roof SLIDE OPEN/TILT DOWN OPEN/DWN: Sliding roof
      SLIDE OPEN or TILT DOWN operation occurs
      OFF: Sliding roof is not operating

      OK: Sliding roof operates normally. 

      NG: REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (See  DISASSEMBLY   ) 

      OK: Go to Next Step 

  2. READ VALUE USING TECHSTREAM (HALL IC) 
    1. Use the Data List to check if the hall ICs are functioning properly.

      Sliding Roof 

      SLIDING ROOF REFERENCE

      Item Measurement Item/Range Normal Condition Diagnostic Note
      Hall IC1 Status Hall IC1 status/Normal or Lock Normal: Hall IC1 is normal.
      Lock: Hall IC1 is abnormal.      		 -
      Hall IC1 Pulse Hall IC1 signal/Lo or Hi Lo: Hall IC1 output Lo.
      Hi: Hall IC1 output Hi.      		 -
      Hall IC2 Status Hall IC2 status/Normal or Lock Normal: Hall IC2 is normal.
      Lock: Hall IC2 is abnormal.      		 -
      Hall IC2 Pulse Hall IC2 signal/Lo or Hi Lo: Hall IC2 output Lo.
      Hi: Hall IC2 output Hi.      		 -

      OK: Tester displays other than LOCK. 

      NG: REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (See  DISASSEMBLY   ) 

      OK: Go to Next Step 

  3. READ VALUE USING TECHSTREAM (SLIDING ROOF SWITCH) 
    1. Use the Data List to check if the sliding roof switch is functioning properly.

      Sliding Roof 

      SLIDING ROOF REFERENCE

      Item Measurement Item/Range Normal Condition Diagnostic Note
      Open Switch Sliding roof switch open signal/ ON or OFF ON: OPEN switch is pressed
      OFF: OPEN switch is not pressed      		 -
      Close Switch Sliding roof switch close signal/ ON or OFF ON: CLOSE switch is pressed
      OFF: CLOSE switch is not pressed      		 -
      Up Switch Sliding roof switch tilt up signal/ ON or OFF ON: UP switch is pressed
      OFF: UP switch is not pressed      		 -
      Down Switch Sliding roof switch tilt down signal/ON or OFF ON: DOWN switch is pressed
      OFF: DOWN switch is not pressed      		 -

      OK: When the switch is operating, the Techstream should display as shown in the table. 

      NG: Go to step 4 

      OK: REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (See  DISASSEMBLY   ) 

  4. INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) 
    Fig 1: Identifying Sliding Roof Switch Connectors
    G04953269Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the map light (see REMOVAL ).
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE

      Tester Connection Switch Condition Specified Condition
      A-24 (UP) - A-16 (GND9) TILT UP Below 1 Ω
      A-24 (UP) - A-16 (GND9) Off 10 kΩ or higher
      A-23 (DOWN) - A-16 (GND9) TILT DOWN Below 1 Ω
      A-23 (DOWN) - A-16 (GND9) Off 10 kΩ or higher
      B-3 (OPN) - A-16 (GND9) SLIDE OPEN Below 1 Ω
      B-3 (OPN) - A-16 (GND9) Off 10 kΩ or higher
      B-12 (CLS) - A-16 (GND9) SLIDE CLOSE Below 1 Ω
      B-12 (CLS) - A-16 (GND9) Off 10 kΩ or higher

      NG: REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) 

      OK: Go to Next Step 

  5. CHECK HARNESS AND CONNECTOR (MAP LIGHT - SLIDING ROOF DRIVE GEAR AND BODY GROUND) 
    Fig 2: Identifying X5 Drive Gear, X4 And X6 Map Light Connectors
    G04953268Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the X5 drive gear connector.
    2. Disconnect the X4 and X6 map light connectors.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      X5-10 (UP) - X4-24 (UP) Always Below 1 Ω
      X5-8 (DWN) - X4-23 (DOWN) Always Below 1 Ω
      X5-7 (OPN) - X6-3 (OPN) Always Below 1 Ω
      X5-9 (CLS) - X6-12 (CLS) Always Below 1 Ω
      X4-16 (GND9) - Body ground Always Below 1 Ω
      X5-2 (E) - Body ground Always Below 1 Ω
      X5-10 (UP) or X4-24 (UP) - Body ground Always 10 kΩ or higher
      X5-8 (DWN) or X4-23 (DOWN) - Body ground Always 10 kΩ or higher
      X5-7 (OPN) or X6-3 (OPN) - Body ground Always 10 kΩ or higher
      X5-9 (CLS) or X6-12 (CLS) - Body ground Always 10 kΩ or higher

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (See  DISASSEMBLY   ) 

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