C0268 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C0268 – ABS Pump Motor Circuit Shorted

 

C0268 Possible Symptoms

 

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

 

C0268 Possible Causes

 

Faulty ABS Pump Motor,ABS Pump Motor harness is open or shorted,ABS Pump Motor circuit poor electrical connection

 

C0268 Description

 

The Electronic Brake Control Module (EBCM) applies the ground needed for pump motor activation. The low side of the pump motor has a feedback circuit to the EBCM. When the pump motor is commanded OFF and at rest, feedback voltage is high. When the pump motor is winding down after being commanded ON and then OFF, feedback voltage is low. The EBCM monitors this feedback voltage in order to determine if the motor is functioning properly.