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TuningBot DTC Database · v4.37.15

P1378 Ford - Fuel Injection Control Module Circuit Low Voltage

Manufacturer-specific interpretation for Ford. All interpretations of P1378

P · PowertrainEngineOBD2

What P1378 means

P1378
Fuel Injection Control Module Circuit Low Voltage Ford · engine Data confidence 62%

The control module detected that the signal in the Fuel Injection Control Module circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Ford.

Possible causes

  • Fuse
  • wiring
  • FICM relay

Related and nearby codes

How to read P1378

P

Powertrain: engine, transmission and driveline systems.

1

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

378

Specific fault index within the subsystem.

Frequently asked questions about P1378

What does P1378 mean?

Fuel Injection Control Module Circuit Low Voltage. The control module detected that the signal in the Fuel Injection Control Module circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Ford.

Is P1378 generic or manufacturer-specific?

P1378 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 P1378 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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