Express 1/2 Ton Van V8-305 5.0L VIN M SFI (1998)
Air Bag(s) Arming and Disarming: Service and Repair
Air Bag Disarming and Arming
Disabling the SIR System
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
-
Turn the steering wheel so that the vehicle's wheels are pointing straight ahead.
-
Turn the ignition switch to "LOCK" and remove key.
1. "AIR BAG" fuse from I/P fuse block.
2. Steering column filler panel.
3. Connector position assurance (CPA) retainer and yellow 2-way SIR connector at base of steering column.
Important: With the "AIR BAG" fuse removed and ignition switch "ON", the "AIR BAG" warning lamp will be "ON". This is normal operation
and does not indicate an SIR system malfunction.
Enabling the SIR System
INSTALL OR CONNECT
-
Turn the ignition switch to "LOCK" and remove key.
1. Yellow 2-way SIR connector and CPA retainer at base of steering column.
2. "AIR BAG" fuse to I/P fuse block.
3. Steering column filler panel.
-
Turn ignition switch to "RUN". and verify that the "AIR BAG" warning lamp flashes 7 times and then turns "OFF". If it does not operate as
described, perform the "SIR Diagnostic System Check."
Disabling the SIR System
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
-
Turn the steering wheel so that the vehicle's wheels are pointing straight ahead.
-
Turn the ignition switch to "LOCK" and remove key.
1. "AIR BAG" fuse from I/P fuse block.
2. Steering column filler panel.
3. Connector position assurance (CPA) retainer and yellow 2-way SIR connector at base of steering column.
Important: With the "AIR BAG" fuse removed and ignition switch "ON", the "AIR BAG" warning lamp will be "ON". This is normal operation
and does not indicate an SIR system malfunction.
Enabling the SIR System
INSTALL OR CONNECT
-
Turn the ignition switch to "LOCK" and remove key.
1. Yellow 2-way SIR connector and CPA retainer at base of steering column.
2. "AIR BAG" fuse to I/P fuse block.
3. Steering column filler panel.
-
Turn ignition switch to "RUN". and verify that the "AIR BAG" warning lamp flashes 7 times and then turns "OFF". If it does not operate as
described, perform the "SIR Diagnostic System Check."
