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TuningBot DTC Database · v4.37.15

P1238 Ford - Fuel Pump Secondary Circuit Fault

Manufacturer-specific interpretation for Ford. All interpretations of P1238

P · PowertrainFuelOBD2

What P1238 means

P1238
Fuel Pump Secondary Circuit Fault Ford · fuel Data confidence 80%

The control module registered the fault condition described as "Fuel Pump Secondary Circuit Fault". This is the manufacturer-specific definition used by Ford.

Possible causes

  • Wiring
  • fuel pump
  • fuel pump relay
  • fuel pump control module

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Inspect relevant wiring and connectors
  • Check power supplies and grounds
  • Compare commanded and measured values
  • Check applicable OEM service information

Related and nearby codes

How to read P1238

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

238

Specific fault index within the subsystem.

Frequently asked questions about P1238

What does P1238 mean?

Fuel Pump Secondary Circuit Fault. The control module registered the fault condition described as "Fuel Pump Secondary Circuit Fault". This is the manufacturer-specific definition used by Ford.

Is P1238 generic or manufacturer-specific?

P1238 is a manufacturer-specific code. In this database it is documented for: Ford. The same number can mean something different on other brands.

Can TuningBot remove P1238 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Ford engines See the results →

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