Service Precautions

Observe these precautions when working with air bag systems:

• Be sure to proceed with air bag related service after waiting at least 30 seconds or more from the time ignition switch is turned to LOCK position and negative battery cable is disconnected. Air bag system is equipped with a back-up power source to assure air bag deployment if battery power is interrupted during an accident. The back-up power is available for approximately 150 milliseconds.
• When troubleshooting air bag system, always check for, and record Diagnostic Trouble Codes (DTC) before disconnecting the battery.
• Symptoms of air bag system malfunctions are difficult to detect, DTCs become the most important source of information when troubleshooting air bag system malfunctions.
• When negative battery cable is disconnected, clock and audio system memory will be erased. Before starting work, record contents of audio system memory. When work is finished, reset audio system and adjust clock time display.
• Never use air bag components from another vehicle. When replacing components, replace them with new manufacturer components.
• Never attempt to disassemble and repair air bag modules, clockspring and wiring harnesses in order to reuse them.
• When ignition switch is in ON position, never cause a sudden shock to area around satellite sensor by a hammer, air tools, etc. Doing so could cause air bag system to unexpectedly deploy during servicing.
• If any air bag system component has been dropped, or if there are cracks, dents or other defects in the case, bracket or connector, replace component with a new component.
• The inflator will be quite hot immediately following deployment, wait at least 30 minutes to allow it to cool before attempting to handle it. Although not poisonous, DO NOT inhale gas from air bag deployment.
• The air bag indicator lamp can be triggered by faults in other circuit in some cases. Therefore if the air bag indicator lamp goes on, be sure to erase the DTC codes using scan tool just after repairing or replacing the troubled parts, including the fuse.
• After firing the air bags one time, the Supplement Restraint System Control Module (SRSCM) must be replaced.
• Always disconnect negative battery cable when performing body welding.
• When work on air bag system is completed, perform air bag system check. See SYSTEM OPERATION CHECK  .