C0271chassis
C0271 – EBCM Control Module Malfunction
What does C0271 mean?
C0271 is a generic (standardized) OBD-II diagnostic trouble code in the Chassis category. Its definition is: EBCM Control Module Malfunction. Chassis codes (C-codes) relate to chassis systems including anti-lock brakes (ABS), traction control, steering, and suspension.
Code breakdown
SystemC — Chassis
TypeGeneric (standardized SAE / OBD-II code — same meaning across most manufacturers)
Common symptoms
- ABS, traction control, or stability control warning light may be illuminated
- The related safety system may be partially or fully disabled
- You may notice changes in braking, traction, or steering assistance
How to diagnose
- 1Scan the ABS/chassis module and record all related codes.
- 2Inspect wheel-speed sensors, tone rings, and their wiring where applicable.
- 3Check connectors and grounds for corrosion or looseness.
- 4Compare live sensor data against expected values.
- 5Clear the code and road-test to confirm the fix.
Severity varies by code and vehicle. Some codes are minor, while others can affect drivability or safety. When in doubt, consult a qualified technician.
Related codes
This information is provided for general reference only and may vary by manufacturer, model, and year. It is not a substitute for professional diagnosis or repair.