P1237 FORD – Fuel Pump Secondary Circuit Fault

P1237 FORD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Engine will not start

P1237 FORD Possible Causes

Faulty Fuel Pump Driver Module (FPDM),Fuel Pump Driver Module (FPDM) harness is open or shorted,Fuel Pump Driver Module (FPDM) circuit poor electrical connection,Faulty fuel pump

P1237 FORD Description

Fuel Pump Driver Modules (FPDM) controls the voltage to the Fuel Pump in order to maintain proper fuel pressure over the full operating range of the engine. The P1237 code indicates the FPDM detected a fuel pump secondary circuit concern. The FPDM sends a message to the Powertrain Control Module (PCM) through the Fuel Pump Monitor (FPM) circuit indicating this concern was detected. The PCM sets the DTC when the message is received.