B2002

PRE-COLLISION: PRE-COLLISION SYSTEM: B2002: Open in Seat Belt Motor RH Circuit
B2002 - Open in Seat Belt Motor RH 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 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:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Service Precautions.

PROCEDURE

1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY RH

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





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

Standard Resistance:





(c) Reconnect the front seat outer belt assembly RH connector.

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 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.

(b) Disconnect the front seat outer belt assembly RH connector.

(c) Disconnect the seat belt control ECU connector.

(d) Using a service wire, connect 1 and 2 of the connector on the front seat outer belt assembly RH.

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

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

Standard Resistance:





(f) Disconnect the service wire from the front seat outer belt assembly RH.

(g) Reconnect the seat belt control ECU and front seat outer belt assembly RH connectors.

(h) Connect the cable to the negative (-) battery terminal.

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

OK -- REPLACE SEAT BELT CONTROL ECU Removal