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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 >> DTC B0053: Left Front/Driver Side Impact Sensor (SIS) Circuit >> Diagnostic Aids

Diagnostic Aids

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.

DTC B0053 will be accompanied by another DTC, other than DTC B1000 and DTC B0051. Repair the malfunction causing the other DTCs before installing a new SDM.

DTC B0053

Step Action Yes No
Schematic Reference: SIR Schematics 
1 Did you perform the Diagnostic System Check - SIR? Go to Step 2  Go to Diagnostic System Check - SIR 
2
  1. Turn OFF the ignition.
  2. Inspect the vehicle for signs of inflator module deployment.
Does the vehicle show any signs of inflator module deployment?		 Go to Step 5  Go to Step 3 
3 Inspect the front of the vehicle and undercarriage for signs of impact/collision.
Does the vehicle show any signs of impact/collision?		 Go to Step 5  Go to Step 4 
4 Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
Did you complete the replacement?		 Go to Step 6  -
5
  1. Install a scan tool.
  2. With a scan tool, observe the SIR DTC display.
  3. If a history DTC exists, refer to Diagnostic Aids for that specific DTC and diagnose the problem.
  4. Replace components and perform inspections as required following an accident. Refer to Repairs and Inspections Required After a Collision .
Did you complete the action?		 Go to Step 6  -
6
  1. Reconnect all SIR components.
  2. Use the scan tool in order to clear the DTCs.
  3. 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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