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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1100 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> Symptoms - SIR >> Notes

Symptoms - SIR: Notes

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Complete the following steps before using the symptom tables:
  1. Perform theDiagnostic System Check - SIR  before using the symptom tables in order to verify that all of the following are true:
    • There are no diagnostic trouble codes (DTCs) set.
    • The inflatable restraint sensing and diagnostic module (SDM) can communicate via the serial data link.
  2. Review the SIR system description and operation in order to familiarize yourself with the system functions. Refer to SIR System Description and Operation .