Diagnostic Tests

WARNING: Unintentional air bag module deployment is possible. Failure to follow service precautions may result in air bag deployment and personal injury. Read and carefully follow all WARNINGS and AIR BAG SAFETY PRECAUTIONS before working on air bag system component or related

2004 ACCESSORIES/SAFETY EQUIPMENT Toyota - Air Bag Restraint Systems components. See AIR BAG SAFETY PRECAUTIONS . After component replacement, check system operation. See SYSTEM OPERATION CHECK .

CAUTION: Damage to air bag sensor is possible. Disconnecting negative battery cable with ignition switch in ON or ACC position can damage air bag sensor. Ensure ignition switch is in LOCK position before disconnecting or connecting negative battery cable.

Air bag system wiring and connector terminals can be easily damaged. Probing directly on connector terminals and through air bag system wiring insulation can cause damage to air bag electrical system. This can result in air bag system malfunction. To prevent damage to connector terminals and wiring when testing, backprobe terminals (probe terminal where wire enters harness connector).

NOTE: In the following tests, the term squib connector and module connector may be used interchangeably.

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Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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