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Home >> Lexus >> 2005 >> LS 430 >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision Safety System - Diagnostics >> DTC B2007: Left Side Motor Line Malfunction Open >> Inspection Procedure
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Inspection Procedure

  1. CHECK WIRE HARNESS (FRONT SEAT OUTER BELT ASSY LH - SEAT BELT CONTROL ECU) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the negative (-) terminal cable from the battery.
    3. Disconnect the connectors from the seat belt control ECU and front seat outer belt assy LH.
    4. Using a service wire, connect S64-1 and S64-2 of the connector on the front seat outer belt assy LH side.
      NOTE: Do not forcibly insert a service wire into the terminals of a connector.
    5. Measure the resistance according to the value(s) in FRONT SEAT OUTER BELT ASSY LH - SEAT BELT CONTROL ECU - REFERENCE TABLE  .

    Standard: 

    FRONT SEAT OUTER BELT ASSY LH - SEAT BELT CONTROL ECU - REFERENCE TABLE

    Tester Connection Condition Specified Condition
    S63-2 (MOL+) - S63-11 (MOL-) Always Below 1 Ω
    Fig 1: Checking Wire Harness (Front Seat Outer Belt Assy LH)
    G03002659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Checking Wire Harness (Seat Belt Control ECU)
    G03002660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE WIRE HARNESS 

    OK: Go to next step 

  2. CHECK FRONT SEAT OUTER BELT ASSY LH 
    1. Measure the resistance according to the value(s) in FRONT SEAT OUTER BELT ASSY LH - RESISTANCE TABLE  .
    NOTE: Be sure to inspect the correct connectors.

    Standard: 

    FRONT SEAT OUTER BELT ASSY LH - RESISTANCE TABLE

    Tester Connection Condition Specified Condition
    S64-1 - S64-2 Always Below 1 Ω
    Fig 3: Checking Front Seat Outer Belt Assy LH
    G03002661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE FRONT SEAT OUTER BELT ASSY LH (See step 8 in  REPLACEMENT  ) 

    OK: REPLACE SEAT BELT CONTROL ECU (See step 10 in  REPLACEMENT  )