C1856: Traction Motor Encoder circuit Failure
What does C1856 mean?
C1856 is a diagnostic trouble code indicating "Traction Motor Encoder circuit Failure". This code relates to your vehicle's stability control and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Intermittent warning lights
- Erratic gauge readings
Estimated repair cost
Typical range in Australia (parts + labour)
Common causes
- Faulty stability control component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
This code sits in the stability and traction control system. Electronic stability control, traction control and the sensors feeding them may be offline, so the car will not correct a slide for you. It will feel completely normal right up until you need it, typically in the wet or in a sudden swerve. Get it diagnosed before driving in poor conditions.
Get a diagnosis for YOUR car
Code C1856 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.