General Service Instructions

^ 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.
^ Do not repair any of the following components:
- The inflatable restraint Diagnostic Energy Reserve Module (DERM).
- The inflatable restraint arming sensor.
- The inflatable restraint steering wheel (inflator) module.
- The inflatable restraint discriminating sensor.
- The inflatable restraint steering wheel module coil.
Service these components by replacement only.
^ Use only new or remanufactured parts from an authorized original equipment manufacturer dealer. Do not use salvaged parts for repairs to the SIR system.
^ Discard any of the following components if it has been dropped from a height of 91 centimeters (3 feet) or greater.
- The inflatable restraint Diagnostic Energy Reserve Module (DERM).
- The inflatable restraint arming sensor.
- The inflatable restraint steering wheel (inflator) module.
- The inflatable restraint discriminating sensor
- The inflatable restraint steering wheel module coil.
Do not install the component in a vehicle. When you replace the DERM, 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 SIR system when one of the following two conditions is met:
- All SIR system components are properly mounted and electrically connected.
- A diagnostic procedure directs you to apply power.
Begin diagnosis of malfunctions with the SIR Diagnostic System Check. Perform the SIR Diagnostic System Check in order to verify the following:
- The proper operation of the AIR BAG warning lamp.
- Communication with the DERM 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 SIR Diagnostic System Check could cause extended diagnostic time, incorrect diagnosis, and unneeded parts replacement.