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Home >> Lexus >> 2008 >> RX 400h FWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Power Door Lock Control System >> Front Passenger Side Door UNLOCK Detection Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. READ VALUE OF DATA LIST (DOOR UNLOCK DETECTION SWITCH) 
    1. Check the Data List to ensure proper function of the door unlock detection switch.

      BODY (Body ECU): 

      DIAGNOSTIC NOTE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Passenger Lock Pos SW Passenger side door lock position switch signal /ON or OFF ON: Passenger side door lock is in UNLOCK position
      OFF: Passenger side door lock is in LOCK position
      -

      OK: The display is as specified in the normal condition. 

    NG: Go to step 2 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

  2. INSPECT FRONT DOOR LOCK ASSEMBLY (DOOR UNLOCK DETECTION SWITCH) 
    1. Remove the front door lock assembly.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      MEASUREMENT SPECIFIED CONDITION CHART

      Measurement Condition Door Lock Condition Specified Condition
      Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1
      LOCK 7 - 8 (10 kΩ or higher)
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4
      UNLOCK 7 - 8 (Below 1 Ω)
    3. Fig 1: Inspecting Front Door Lock Assembly (Door Unlock Detection Switch)
      G05140956Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE FRONT DOOR LOCK ASSEMBLY 

    OK: Go to next step 

  3. CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL J/B) 
    1. Disconnect the front door lock assembly connector.
    2. Disconnect the instrument panel J/B connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      D11-7 (LSSR) - B5-27 (LSWP) Always Below 1 Ω
      D11-8 (E) - Body ground Always Below 1 Ω
    4. Fig 2: Checking Wire Harness (Front Door Lock Assembly - Instrument Panel J/B)
      G05270459Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE