Air Bag System - Repair Manual Supplement
ELECTRICALEL002-07
Title:
REPAIR MANUAL SUPPLEMENT:
SUPPLEMENTAL RESTRAINT
Models:
'04 - '07 Applicable Lexus
February 6, 2007
Introduction
To ensure customer satisfaction, please follow the SRS Service Tips below.
Applicable Vehicles
^ 2004 - 2007 model year Lexus vehicles equipped with the Curtain Shield Airbag.
Warranty Information
SRS
^ DTCs are the most important source of information when troubleshooting the SRS.
Service Tips
Always inspect DTCs before disconnecting the battery.
^ The SRS is equipped with a backup power source. If work is started within 90 seconds after disconnecting the negative (-) terminal cable from the battery, the SRS may deploy.
^ The center airbag sensor needs to be replaced anytime an airbag has deployed.
^ When Troubleshooting SRS DTC B1650/32, check the Occupant Classification System (OCS) for DTCs before disconnecting the negative (-) terminal cable from the battery. DTC B1650/32 is an indication the SRS system has detected errors in the OCS operation.
^ Use a volt/ohmmeter with high impedance (10 k ohms/V minimum) for troubleshooting the electrical circuits.
^ Even in the case of a minor collision when the SRS does NOT deploy, the following parts should be inspected:
- Steering pad
- Front passenger airbag assembly
- Center airbag sensor assembly
- Front airbag sensor
- Front seat inner belt assembly
- Seat position sensor
- Front seat airbag assembly
- Side airbag sensor
- Curtain shield airbag assembly
- Rear airbag sensor
- Front seat outer belt assembly.
^ Before repair work, remove the center airbag sensor assembly if any kind of shock or movement is likely to occur to the airbag sensor during the repair.
- Using a hammer near an impact sensor could deploy an airbag.
- Movement of the center airbag sensor assembly could cause the curtain shield airbags to deploy.
^ NEVER use SRS parts from another vehicle. When replacing parts, replace them with NEW components.