What does OBD code P0203 mean?
What does OBD code P0203 mean? injector circuit What the P0203 code means. The P0203 is a diagnostic trouble code that is set when the engine control module (ECM) has detected a fault in the injector circuit for cylinder 3. Once the DTC is set, the car will enable a failsafe mode which prevents further damage to the vehicle. What does the code p0203 mean on an injector? After that, the current is reduced to the amount needed to hold the injector open. The code P0203 stands for Injector 3 – Circuit Malfunction. This means that the PCM had detected...