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 Sensing and Diagnostic Module (SDM).

- The inflatable restraint I/P (inflator) module.

- The inflatable restraint steering wheel (inflator) module.

- The inflatable restraint steering wheel module coil.

- The inflatable restraint front end discriminating sensor.

- The inflatable restraint Side Impact Sensing Modules (SISM)

- The inflatable restraint side impact (inflator) modules

- The seat belt pretensioners

^ 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 Sensing and Diagnostic Module (SDM).

- The inflatable restraint I/P (inflator) module.

- The inflatable restraint steering wheel (inflator) module.

- The inflatable restraint steering wheel module coil.

- The inflatable restraint front end discriminating sensor.

- The inflatable restraint Side Impact Sensing Modules (SISM)

- The inflatable restraint side impact (inflator) modules

- The seat belt pretensioners

Do not install the component in a vehicle.

^ 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.

^ When you replace a SISM, verify that the following conditions are met:

- The mounting surface is clean.

- The module is flat on the mounting surface.

- 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 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 SIR Diagnostic System Check could cause extended diagnostic time, incorrect diagnosis, and unneeded parts replacement.