General Service Instructions for Isuzu S/T Isuzu - 2WD 1998
| • | 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 the component has been
dropped from a height of 91 cm (3 ft) 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 true: |
| - | 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 are 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
items: |
| - | 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.
