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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1325 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> Air Bag Indicator Does Not Come ON >> Test Description

Test Description

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.

The number below refers to the step number on the diagnostic table.

  1. 5:  Tests for an open or high resistance in the Air Bag Indicator Control circuitry.
Air Bag Indicator Does Not Come ON

Step Action Yes No
Schematic Reference:  SIR Schematics  
Connector End View Reference:  SIR Connector End Views  
1 Did you perform A Diagnostic System Check - SIR? Go to Step 2  Go to Diagnostic System Check - SIR 
2 Do any of the other instrument cluster indicators or gages function? Go to Step 3  Go to Gages Inoperative - All in Instrument Panel, Gages and Console
3
  1. Turn OFF the ignition.
  2. Disconnect the SDM connector.
  3. Inspect the SDM connector for the following conditions:
    • Corrosion
    • Damaged terminals
    • Poor connections/terminal tension
Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.Did you find and correct the condition?
Go to Step 8  Go to Step 4 
4
  1. Turn OFF the ignition.
  2. Disconnect the SDM connector.
  3. Turn ON the ignition.
  4. Observe Air Bag Indicator.
Did the Air Bag indicator illuminate?
Go to Step 7  Go to Step 5 
Test the AIR BAG indicator control circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 8  Go to Step 6 
6 Replace the instrument panel cluster assembly. Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages and Console.
Did you complete the replacement?
Go to Step 8  -
7 Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
Did you complete the replacement?
Go to Step 8  -
8 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2