C1856 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1856 – Traction Motor Encoder circuit Failure

 

C1856 Possible Symptoms

 

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

 

C1856 Possible Causes

 

Faulty Traction Motor Encoder,Traction Motor Encoder harness is open or shorted,Traction Motor Encoder circuit poor electrical connection

 

C1856 Description

 

The Anti-Lock Brake System (ABS) Module monitors the Traction Motor Encoder. The ABS Module sets the OBDII code when the Traction Motor Encoder is not to factory specifications.