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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1326 (Instrument Panel System Displays, Gauges And Console) >> Repair Instructions >> Instrument Panel (I/P) Disassembly Precautions

Instrument Panel (I/P) Disassembly Precautions

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to SIR Caution in Cautions and Notices.

The center sensor assembly may maintain sufficient voltage in order to cause a deployment for up to 2 minutes. This deployment may occur under one of the following circumstances:

Service procedures require disconnection of the following components from the deployment loop in order to avoid an accidental deployment:

NOTE: In order to prevent possible Electrostatic Discharge damage to the PCM, Do Not touch the connector pins or the soldered components on the circuit board.

Some solid-state electrical components may be damaged by Electrostatic Discharge (ESD).

  1. Do not store the inflator modules at temperatures above 65°C (150°F).
  2. Do not use the following components if dropped from a height of 91.4 cm (3 ft) or more.
    • Inflator modules
    • Center sensory assemblies
  3. Do not apply power to the SIR except under the following circumstances:
    • All the components are connected.
    • A diagnostic chart requests power.

      Powering up the SIR with the components disconnected will set a Diagnostic Trouble Code (DTC).

  4. The SIR diagnostic System Check in the Supplemental Restraint System (SIR) is the starting point of any SIR diagnostics.

    The SIR Diagnostic System Check will perform the following functions:

    • Verify the proper air bag indicator operation
    • Lead you to the correct chart in order to diagnose any SIR faults to avoid an extended diagnostic time
  5. Bypassing the SIR Diagnostic System Check procedures may result in the following circumstances:
    • Extended diagnostic time
    • An incorrect diagnosis
    • An incorrect parts replacement