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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1271 >> Circuit/System Verification
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Circuit/System Verification

  1. Access the Service Programming System (SPS) and follow the on-screen instructions.
  2. On the SPS Supported Controllers screen, select IRC Audio System - 3. Configuration & Setup and follow the on-screen instructions.
  3. After completing the Configuration and Setup procedure, clear any DTCs and turn OFF the ignition.
  4. Ignition ON, verify DTC B1271 is not set as current.
    • If DTC B1271 is retrieved as a current DTC, replace the radio.
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