P1237 Code: Easy Steps to Solve It
The P1237 trouble code is a diagnostic trouble code (DTC) that indicates a malfunction in the fuel pump secondary circuit. This code is primarily associated with issues in the Fuel Pump Driver Module (FPDM) or the wiring connected to it. The FPDM is responsible for controlling the fuel pump’s operation, ensuring the engine receives the appropriate amount of fuel for optimal performance. When this code