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
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.