| • | 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. Service these components
by replacement only: |
| - | The inflatable restraint sensing and diagnostic module (SDM) |
| - | The inflatable restraint IP (inflator) module |
| - | The inflatable restraint steering wheel (inflator) module |
| - | The inflatable restraint steering wheel module coil |
| - | The inflatable restraint side impact sensors (SIS) |
| - | The inflatable restraint side impact (inflator) modules |
| • | Use only original GM replacement parts available from your authorized
GM dealer. Do not use salvaged parts for repairs to the SIR system. |
| • | Discard any of the following components if the components have
been dropped from a height of 91 cm (3 ft) or greater. |
| - | The inflatable restraint Sensing and Diagnostic Module (SDM) |
| - | The inflatable restraint IP (inflator) module |
| - | The inflatable restraint steering wheel (inflator) module |
| - | The inflatable restraint steering wheel module coil |
| - | The inflatable restraint side impact sensors (SIS) |
| - | The inflatable restraint side impact (inflator) modules |
Do not install the SDM and/or SIS component in a vehicle until you have
met the following conditions:
| • | 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 SIS, verify that the following conditions are
met: |
| - | The mounting surface is clean. |
| - | The sensor is flat on the mounting surface. |
| - | The sensor 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.
