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TuningBot DTC Database · v4.37.15

P2120 Ford - Diagnostic Trouble Code (3 variants)

Manufacturer-specific interpretation for Ford. All interpretations of P2120

P · PowertrainEngineUDS

What P2120 means

P2120:16
APP D circuit continuity Ford · engine Data confidence 94%

Ford documents P2120:16 (circuit voltage below threshold) for its 2024-2025 gasoline-engine OBD monitor strategy as app d circuit continuity. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

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
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P2120:17
APP D circuit continuity Ford · engine Data confidence 94%

Ford documents P2120:17 (circuit voltage above threshold) for its 2024-2025 gasoline-engine OBD monitor strategy as app d circuit continuity. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

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
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P2120:48
Internal Control Module Accelerator Pedal Position switch 1 performance Ford · software Data confidence 94%

Ford documents P2120:48 for its 2024-2025 gasoline-engine OBD monitor strategy as internal control module accelerator pedal position switch 1 performance. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years

Related and nearby codes

How to read P2120

P

Powertrain: engine, transmission and driveline systems.

2

Generic SAE-standard code: same meaning on every make.

120

Specific fault index within the subsystem.

Frequently asked questions about P2120

What does P2120 mean?

Diagnostic Trouble Code (3 variants). Ford documents P2120:16 (circuit voltage below threshold) for its 2024-2025 gasoline-engine OBD monitor strategy as app d circuit continuity. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Is P2120 generic or manufacturer-specific?

P2120 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 P2120 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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