LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Prius Two >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (Except Plug-In) (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> DTC B2007: Open in Seat Belt Motor LH Circuit >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC B2007: Open in Seat Belt Motor LH Circuit: Procedure

  1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH 
    1. Disconnect the front seat outer belt assembly LH connector.
      Fig 1: Identifying Front Seat Outer Belt Assembly LH Connector Terminals
      GTY230231Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      R8-1 - R8-2 Always Below 20 Ω
    3. Reconnect the front seat outer belt assembly LH connector.

    NG → See step   4 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) 
    1. Disconnect the cable from the negative (-) battery terminal.
      WARNING:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      Fig 2: Identifying Front Seat Outer Belt Assembly LH And Seat Belt Control ECU Connector Terminals
      GTY236695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the front seat outer belt assembly LH connector.
    3. Disconnect the seat belt control ECU connector.
    4. Using a service wire, connect 1 and 2 of the connector on the front seat outer belt assembly LH.
      NOTE:

      Do not forcibly insert the service wire into the terminals of the connector.

    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L2-3 (MOL+) - L2-4 (MOL-) Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *1 Front view of wire harness connector
      (to Front Seat Outer Belt Assembly LH)
      *2 Front view of wire harness connector
      (to Seat Belt Control ECU)
    6. Reconnect the seat outer belt assembly LH and seat belt control ECU connectors.
    7. Connect the cable to the negative (-) battery terminal.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) 

    OK → See step   3 

  3. REPLACE SEAT BELT CONTROL ECU. Refer to  REMOVAL 
  4. REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH. Refer to  REMOVAL