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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 >> DTC B1100 >> Conditions for Clearing the DTC

Conditions for Clearing the DTC

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 condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

DTC B1100

Step Action Value(s) 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 Are other DTCs current in addition to B1100? - Go to applicable DTC Go to Step 3 
3
  1. Turn OFF the ignition.
  2. Disconnect the SDM connector.
  3. Turn ON the ignition, with the engine OFF.
  4. Measure the voltage between the SDM ignition positive voltage terminal and ground.
Is the voltage as specified?		 10-14V Go to Step 5  Go to Step 4 
4 Test SDM ignition positive voltage circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 7  Go to Step 6 
5 Test SDM ground circuits 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 7  Go to Step 6 
6 Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
Did you complete the replacement?		 - Go to Step 7  -
7
  1. Reconnect all SIR components.
  2. Verify that all components, connectors and CPAs are properly mounted.
  3. Use the scan tool in order to clear DTCs.
  4. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 - Go to Step 2  System OK
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