How to Fix P0123, P0223, P1233, and P1234 Error Codes on Mitsubishi Lancer 1.5L GLS

Model: Lancer 1.5l GLS Fault Code: P0123 Posted: 2016-01-25 23:10

I recently encountered engine switch light issues on my Mitsubishi Lancer 1.5L GLS. After using an OBD2 scanner, the following diagnostic error codes were detected: P0123 (TPS A circuit low input), P0223 (TPS B circuit high input), P1233 (Fuel pump driver module offline), and P1234 (Fuel pump driver module offline). I believe replacing the Throttle Position Sensor (TPS) may resolve the TPS-related issues. However, I'm unsure how to fix the fuel pump driver module errors—any guidance on diagnosing or repairing these codes would be greatly appreciated.