C0243 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C0243 – Engine Drag Control
C0243 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C0243 Possible Causes
Faulty Engine Drag Control (EDC),Engine Drag Control (EDC) harness is open or shorted,Engine Drag Control (EDC) circuit poor electrical connection
The Electronic Brake Control Module (EBCM) sends a Engine Drag Control (EDC) request via a dedicated data line. The Powertrain Control Module (PCM) supplies a pull up voltage of 5 volts that the EBCM switches to ground to create the signal. The EBCM receives a serial data message from the PCM indicating that the EDC circuit has failed.