Supplemental Restraint System (SRS) Depowering and Repowering
Supplemental Restraint System (SRS) Depowering and Repowering
Depowering Procedure
WARNING: Always wear eye protection when servicing a vehicle. Failure to follow this instruction may result in serious personal injury.
WARNING: Never probe the electrical connectors on air bag, Safety Canopy(R) or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy(R) and cause serious personal injury or death.
WARNING: To reduce the risk of accidental deployment, do not use any memory saver devices. Failure to follow this instruction may result in serious personal injury or death.
NOTE: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition is ON.
NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
1. Turn all vehicle accessories OFF.
2. Turn the ignition OFF.
3. At the Smart Junction Box (SJB), located below the LH side of the instrument panel, remove the cover and RCM (Restraints Control Module) fuse 32 (10A) from the SJB (Smart Junction Box). For additional information, Refer to the Wiring Diagrams. Electrical Diagrams
4. Turn the ignition ON and monitor the air bag warning indicator for at least 30 seconds. The air bag warning indicator will flash once, then remain illuminated continuously (no flashing) if the correct RCM (Restraints Control Module) fuse has been removed. If the air bag warning indicator does not remain illuminated continuously, remove the correct RCM (Restraints Control Module) fuse before proceeding.
5. Turn the ignition OFF.
6. WARNING: Always deplete the backup power supply before repairing or installing any new front or side air bag supplemental restraint system (SRS) component and before servicing, removing, installing, adjusting or striking components near the front or side impact sensors or the restraints control module (RCM). Nearby components include doors, instrument panel, console, door latches, strikers, seats and hood latches.
Refer to the Description and Operation portion of Restraints and Safety Systems &/or Air Bag Systems for location of the RCM and impact sensor(s).
To deplete the backup power supply energy, disconnect the battery ground cable and wait at least 1 minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped).
Failure to follow these instructions may result in serious personal injury or death in the event of an accidental deployment.
Disconnect the battery ground cable and wait at least one minute.
Repowering Procedure
1. Install RCM (Restraints Control Module) fuse 32 (10A) to the SJB (Smart Junction Box) and install the cover.
2. Remove Battery Junction Box (BJB) relay 63.
3. Install a 20A fused jumper wire in BJB (Battery Junction Box) relay 63 cavities as shown.
4. WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.
Connect the battery ground cable.
5. Remove the fused jumper wire from the BJB (Battery Junction Box).
6. Install BJB (Battery Junction Box) relay 63 and cover.
7. Prove out the SRS (Supplemental Restraint System) as follows:
With the ignition OFF, wait 10 seconds, then turn the ignition ON and monitor the air bag warning indicator with the air bag modules installed. The air bag warning indicator will light continuously for approximately 6 seconds and then turn off. If an air bag SRS (Supplemental Restraint System) fault is detected, the air bag warning indicator will:
- fail to light.
- remain lit continuously.
- flash.
The flashing might not occur until approximately 30 seconds after the ignition has been turned from the OFF to ON. This is the time required to complete testing of the SRS (Supplemental Restraint System). If the air bag warning indicator is inoperative and a SRS (Supplemental Restraint System) fault exists, a chime will sound in a pattern of 5 sets of 5 beeps. If this occurs, the air bag warning indicator and any SRS (Supplemental Restraint System) fault discovered must be diagnosed and repaired.
8. Clear all CMDTCs (Continuous Memory Diagnostic Trouble Codes) from the RCM (Restraints Control Module) and OCSM (Occupant Classification System Module).