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Home >> Lexus >> 2006 >> IS 250 RWD, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Pre-Collision Safety >> DTC B2005: Short to B+ in Seat Belt Motor LH Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH 
    1. Disconnect the O13 connector of the front seat outer belt assembly LH.
    2. Measure the voltage according to the value(s) in FRONT SEAT OUTER BELT ASSEMBLY LH  .

      Standard voltage 

      FRONT SEAT OUTER BELT ASSEMBLY LH

      Tester Connection Condition Specified Condition
      O13-1 - Body ground  Engine switch on (IG)  Below 1 V 
      O13-2 - Body ground  Engine switch on (IG)  Below 1 V 
    Fig 1: Inspecting Front Seat Outer Belt Assembly LH
    G04048568Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) 
    1. Disconnect the negative (-) battery terminal.
    2. Disconnect the O38 connector of the seat belt control ECU.
    3. Connect the negative (-) terminal to the battery.
    4. Measure the voltage according to the value(s) in FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU  .

      Standard voltage 

      FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU

      Tester Connection Condition Specified Condition
      O13-1 - Body ground  Engine switch on (IG)  Below 1 V 
      O13-2 - Body ground  Engine switch on (IG)  Below 1 V 
    Fig 2: Identifying Harness & Connector (Front Seat Outer Belt Assembly LH - Seat Belt Control ECU)
    G04048569Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE SEAT BELT CONTROL ECU 

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