PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2007

DTC Code DTC Name
B2007 Open in Seat Belt Motor LH Circuit

DESCRIPTION

The seat belt control ECU receives information from the driving support ECU using CAN communication and tightens the seat belt by operating the motor in the front seat outer belt assembly LH.

DTC No. DTC Detection Condition Trouble Area
B2007 Open in seat belt motor LH circuit continues for 1 second or more

  • Front seat outer belt assembly LH

  • Wire harness (seat belt control ECU - front seat outer belt assembly LH)

  • Seat belt control ECU

WIRING DIAGRAM

A01NHSRE08

INSPECTION PROCEDURE

CAUTION:

The pretensioner is built into the front seat outer belt assembly LH. Be sure to follow the correct inspection procedure, as failure to follow the correct procedure (such as inspection of incorrect connectors) may deploy the pretensioner.

PROCEDURE


  1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH


    1. A01NGXQE33

      Disconnect the front seat outer belt assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P6-1 (MOL+) - P6-2 (MOL-) Always Below 1 MΩ

    3. Reconnect the front seat outer belt assembly LH connector.


    NG

    REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU)


    1. A01NFQME21
      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)

      Disconnect the cable from the negative (-) battery terminal.

      CAUTION:

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

    2. Disconnect the front seat outer belt assembly LH connector.

    3. Disconnect the seat belt control ECU connector.

    4. Using a service wire, connect MOL+ and MOL- 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
      F57-3 (MOL+) - F57-4 (MOL-) Always Below 1 Ω

    6. Reconnect the front 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

    REPLACE SEAT BELT CONTROL ECU Click here