Dtc B2007 Open In Seat Belt Motor Lh Circuit

Restraints. Lexus Gs430, Gs300. Uzs190 Grs190
Pre-Crash Safety. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK WIRE HARNESS (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU)

INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH

DTC B2007 Open in Seat Belt Motor LH Circuit


DESCRIPTION

The seat belt control ECU receives information from the seat belt control ECU (distance control ECU) through CAN communication and tightens the seat belt by operating the motor in the front seat outer belt assembly LH.

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 activate the pretensioner.

DTC No.
DTC Detection Condition
Trouble Area
B2007
Open in seat belt motor LH circuit continues for 1 second or more
  1. Front seat outer assembly LH
  2. Wire harness (seat belt control ECU - front seat outer belt assembly LH)
  3. Seat belt control ECU

WIRING DIAGRAM

Reter to the DTC B2002 (Click here).

INSPECTION PROCEDURE

NOTICE:
When the seat belt control ECU is replaced with a new one, Active Test must be performed (Click here).
1.CHECK WIRE HARNESS (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU)


    Lexus Gs430, Gs300. Uzs190 Grs190.Pre-Crash Safety.Pre-Crash Safety System. Dtc B2007 Open In Seat Belt Motor Lh Circuit

  1. Turn the engine switch off.

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

  1. Disconnect the W30 ECU connector.

  1. Disconnect the W6 belt connector.

  1. Using a service wire, connect W6-1 and W6-2 of the connector on the front seat outer belt assembly LH .

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

  1. Measure the resistance of the wire harness side connector.

    Standard resistance::
    Tester Connection
    		Condition
    		Specified Condition
    W30-2 (MOR+) - W30-11 (MOR-)
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


2.INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH


    Lexus Gs430, Gs300. Uzs190 Grs190.Pre-Crash Safety.Pre-Crash Safety System. Dtc B2007 Open In Seat Belt Motor Lh Circuit

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    W6-1 - W6-2
    		Always
    		Below 1 Ω


NG
REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH
OK

REPLACE SEAT BELT CONTROL ECU