B2006

PRE-COLLISION: PRE-COLLISION SYSTEM: B2006: Short to GND in Seat Belt Motor LH Circuit
B2006 - Short to GND in Seat Belt Motor LH Circuit

DESCRIPTION

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





WIRING DIAGRAM





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.

NOTICE:
When the seat belt control ECU is replaced with a new one, Initialization must be performed Pre-Collision System.

PROCEDURE

1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH

(a) Disconnect the L12 connector of the front seat outer belt assembly LH.





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

Standard resistance:





NG -- REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH Removal
OK -- Continue to next step.

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

(a) Disconnect the negative (-) battery terminal.





(b) Disconnect the M37 connector of the seat belt control ECU.

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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE SEAT BELT CONTROL ECU Removal