C0242 PONTIAC, GMC, CHEVROLET, BUICK, CADILLAC: ENGINE CONTROL MODULE INDICATED TRACTION CONTROL MALFUNCTION
POST UPDATED IN June, 2023
C0242 PONTIAC, GMC, CHEVROLET, BUICK, CADILLAC: ENGINE CONTROL MODULE INDICATED TRACTION CONTROL MALFUNCTION
When traction control is active, the EBCM (Electronic Brake Control Module) is responsible for sending a serial data message to the ECM (Engine Control Module), requesting the engine torque reduction. If a problem occurs or certain DTCs are set, this action cannot be carried out and the EBCM is notified accordingly.
Storing of the fault code C0242 OBDII occurs, when the ECM signals the existence of a problem, so the requested engine torque reduction cannot be successful.
The C0242 OBD2 diagnostic code is stored by the following:
To fix the DTC C0242 OBDII code consider the following: