P1238 1997 FORD F150 Possible Causes
- Faulty Fuel Pump Driver Module (FPDM)
- Fuel Pump Driver Module (FPDM) harness is open or shorted
- Poor electrical connection in the Fuel Pump Driver Module (FPDM) circuit
- Faulty fuel pump
How is code P1238 1997 FORD F150 repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Technical Notes
Note: For LS6/LS8 and Thunderbird, FPDM functions are integrated into the Rear Electronic Module (REM). Additionally, the REM does not use an FPM circuit. Diagnostic information is sent over the communication link.
P1238 indicates that the FPDM detected a fault in the fuel pump secondary circuit. The FPDM will send a message to the PCM via the FPM circuit, indicating that this fault has been detected. The PCM will set the DTC when the message is received.
When is the code detected?
The Fuel Pump Driver Module detected a fault in the fuel pump secondary circuit
Possible Symptoms
- Engine Light On (or Service Engine Soon Warning Light)
- Engine will not start
P1238 1997 FORD F150 Meaning
This DTC indicates that the Fuel Pump Driver Module (FPDM2) detected a fuel pump secondary circuit problem. The FPDM2 sends a message to the Powertrain Control Module (PCM) via the Fuel Pump Monitor (FPM2) circuit, indicating that this problem has been detected. The PCM sets the DTC when the message is received.