General Troubleshooting Information

* Do not expose the inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different vehicle.
* Service these components by replacement only.
* Do not repair any of the following components:
- The supplemental restraint Sensing and Diagnostic Module (SDM).
- The supplemental restraint IP (inflator) module.
- The supplemental restraint IP module switch.
- The supplemental restraint steering wheel (inflator) module.
- The supplemental restraint steering wheel module coil.
- The supplemental restraint front end discriminating sensor.

* Use only new or remanufactured parts from an authorized original equipment manufacturer dealer. Do not use salvaged parts for repairs to the SRS.
* Do not install the component in a vehicle.
* Discard any of the following components if it has been dropped from a height of 91 centimeters (3 feet) or greater.
- The supplemental restraint Sensing and Diagnostic Module (SDM).
- The supplemental restraint IP (inflator) module.
- The supplemental restraint IP module switch.
- The supplemental restraint steering wheel (inflator) module.
- The supplemental restraint steering wheel module coil.
- The supplemental restraint front end discriminating sensor.

* When you replace the SDM, verify that the following conditions are met:
- The mounting surface is clean.
- The arrow on the module points toward the front of the vehicle.
- The module is flat on the mounting surface, parallel to the vehicle datum line.
- The module fasteners are installed and tightened as specified.

* In order to avoid setting false diagnostic trouble codes, only apply power to the SRS when one of the following two conditions is met:
- All SRS components are properly mounted and electrically connected.
- A diagnostic procedure directs you to apply power.

* Begin diagnosis of malfunctions with the SRS Diagnostic System Check. Perform the SRS Diagnostic System Check in order to verify the following:
- The proper operation of the AIR BAG warning lamp.
- Communication with the SDM through the serial data line.
- The presence or absence of diagnostic trouble codes.
- Whether additional diagnosis is required and where the information resides.

Not beginning with the SRS Diagnostic System Check could cause extended diagnostic time, incorrect diagnosis, and unneeded parts replacement.
SRS Diagnostic System Check