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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1094 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0056-B0058 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, verify that the vehicle does not show any signs of inflator module or pretensioner deployment.
  2. Verify DTC B0052, B0053, or B0055 is not set.
  3. With a scan tool, clear DTCs. Verify DTC B0056, B0057, or B0058 is not set.
    • If any of the DTCs are set, replace the SDM.