C1601 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1601 – Electric Power Steering Battery Power Supply

 

C1601 Possible Symptoms

 

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

 

C1601 Possible Causes

 

Faulty Electric Power Steering (EPS) Control Unit,EPS Control Unit harness is open or shorted,EPS Control Unit circuit poor electrical connection

 

C1601 Description

 

The Electric Power Steering (EPS) Control Unit receives power from the battery and then provides power to the EPS DC/DC converter and EPS motor control circuit. (Or EPS Control Unit receives power for EPS DC/DC converter and EPS motor control circuit from the battery.) The EPS Control Unit sets the ODBII code when the power supply malfunction supplied to EPS control unit is detected.