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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Antilock Brake System - Hybrid >> Diagnostic Information and Procedures >> DTC C1203: Invalid Data Received From Integrated Chassis Control Module >> Circuit/System Verification
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Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify that no other DTCs are set except for C1203.
    • If no other DTCs are set 
  3. Replace the K17 Electronic Brake Control Module.
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