- Disabling the SIR System
DISABLING THE SIR SYSTEMS
CAUTION: When performing service on or around SIR components or SIR wiring, follow the procedures listed below to temporarily disable the SIR system. Failure to follow procedures could result in possible air bag deployment, personal injury, or otherwise unneeded SIR system repairs.
The DERM can maintain sufficient voltage to cause a deployment for up to 2 minutes after the ignition switch is turned "OFF" or the battery is disconnected. Many of the service procedures require disconnection of the "AIR BAG" fuse and the inflator module circuits from the deployment loops to avoid an accidental deployment.
REMOVE OR DISCONNECT
1. Turn the steering wheel so that the vehicle's wheels are pointing straight ahead.
2. Turn the ignition switch to the "LOCK" position and remove the key.
3. The "AIR BAG" fuse from the fuse block.
4. The drivers knee bolster.
5. The Connector Position Assurance (CPA) and yellow 2-way connector at the base of the steering column.
6. The passenger's knee bolster, if equipped with passenger inflator module.
7. The CPA and yellow 2-way connector at the passenger's inflator module, if equipped.
Important: With the "AIR BAG" fuse removed and the ignition switch in the "ON" position, the "AIR BAG", warning lamp illuminates. This is normal operation and does not indicate an SIR system malfunction.