B2000

PRE-COLLISION: PRE-COLLISION SYSTEM: B2000: Short to B+ in Seat Belt Motor RH Circuit
B2000 - Short to B+ in Seat Belt Motor RH Circuit

DESCRIPTION

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





WIRING DIAGRAM





INSPECTION PROCEDURE

CAUTION:
The pretensioner is built into the front seat outer belt assembly RH. 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 RH

(a) Disconnect the M10 connector of the front seat outer belt assembly RH.





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

Standard voltage:





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

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

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





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

(c) Connect the negative (-) terminal to the battery.

(d) Measure the voltage according to the value(s) in the table below.

Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE SEAT BELT CONTROL ECU Removal