Diagnostic Tests: Notes
WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Failure to follow air bag service precautions may result in air bag deployment and personal injury. See AIR BAG SAFETY PRECAUTIONS . After component replacement, perform system operational check to ensure proper system operation. See SYSTEM OPERATION CHECK .
CAUTION:
Ensure ignition switch is in LOCK position before disconnecting or connecting negative battery cable. If ignition switch is in ACC or ON position when negative battery cable is disconnected or connected, air bag sensor assembly may be damaged. To prevent damage to connector terminals, DO NOT probe terminal ends. Instead, backprobe terminals (probe terminal where wire enters harness connector).
NOTE:
In the following tests, the term squib and module may be used interchangeably.