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Home >> Lexus >> 2015 >> LS 600h >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes >> Pre-Collision System >> DTC B2001: Short to GND in Seat Belt Motor RH Circuit; DTC B2006: Short to GND in Seat Belt Motor LH Circuit [10/2014 - ] >> Procedure

DTC B2001: Short to GND in Seat Belt Motor RH Circuit; DTC B2006: Short to GND in Seat Belt Motor LH Circuit [10/2014 - ]: Procedure

  1. CHECK SEAT BELT CONTROL ECU 
    GTY134192Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S45 ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      FOR LH

      Tester Connection Condition Specified Condition
      S45-3 (MOL+) - Body ground Always 10 kΩ or higher
      S45-4 (MOL-) - Body ground Always 10 kΩ or higher
      FOR RH

      Tester Connection Condition Specified Condition
      S45-2 (MOR+) - Body ground Always 10 kΩ or higher
      S45-1 (MOR-) - Body ground Always 10 kΩ or higher

    NG → See step   2 

    OK → See step   3 

  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT - SEAT BELT CONTROL ECU) 
    GTY155823Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S4*1 and R2*2 belt connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      FOR LH

      Tester Connection Condition Specified Condition
      S4-1 - Body ground Always 10 kΩ or higher
      S4-2 - Body ground Always 10 kΩ or higher
      FOR RH

      Tester Connection Condition Specified Condition
      R2-1 - Body ground Always 10 kΩ or higher
      R2-2 - Body ground Always 10 kΩ or higher
      RESULT

      Result Proceed to
      NG A
      OK (B2001 is output) B
      OK (B2006 is output) C

    B → See step   4 

    C → See step   5 

    A → REPAIR OR REPLACE HARNESS OR CONNECTOR 

  3. REPLACE SEAT BELT CONTROL ECU. Refer to  REMOVAL [10/2014 - ] 
  4. REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH. Refer to  REMOVAL [10/2014 - ] 
  5. REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH. Refer to  REMOVAL [10/2014 - ]