How to resolve the P0203 trouble code?
1 Answers
After troubleshooting the vehicle, when clearing the code, it should be strictly carried out according to the specified trouble code clearing procedure for the specific vehicle model. If the Electronic Control Unit (ECU) detects an error in the fuel injector control circuit, this trouble code will appear. This includes issues such as the fuel injector interface, circuit faults, the fuel injector itself malfunctioning, or faults in the Electronic Control Module (PCM or ECM).