For Diagnosis & Testing
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition switch to LOCK position. Disconnect and shield negative battery cable. Wait at least 90 seconds. Remove driver-side air bag module. See DRIVER-SIDE AIR BAG MODULE under REMOVAL & INSTALLATION. Disconnect passenger-side air bag module connector, accessible by removing right under cover, No. 2 garnish and finish panel assembly. See Fig 1. See PASSENGER-SIDE AIR BAG MODULE under REMOVAL & INSTALLATION.
- Disconnect air bag sensor assembly connectors. See AIR BAG SENSOR ASSEMBLY under REMOVAL & INSTALLATION. Disconnect right and left front air bag sensors. See FRONT AIR BAG SENSORS . Disconnect right and left front seat belt pretensioners. See FRONT SEAT BELT PRETENSIONERS under REMOVAL & INSTALLATION. Disconnect right and left rear seat belt pretensioners. See REAR SEAT BELT PRETENSIONERS under REMOVAL & INSTALLATION.
- Disconnect right and left side air bag modules. See SIDE AIR BAG MODULES under REMOVAL & INSTALLATION. Disconnect right and left head impact/side air bag sensors. See HEAD IMPACT/SIDE AIR BAG SENSOR ASSEMBLIES under REMOVAL & INSTALLATION. Disconnect right and left side head impact sensors. See HEAD IMPACT AIR BAG SENSOR ASSEMBLIES under REMOVAL & INSTALLATION.