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TuningBot DTC Database · v4.37.15

P26C5 Ford - Diagnostic Trouble Code (3 variants)

Manufacturer-specific interpretation for Ford. All interpretations of P26C5

P · PowertrainEngineUDS

What P26C5 means

P26C5:11
Exhaust Flow Control Valve “A” Control Circuit Low Ford · engine Data confidence 94%

Ford documents P26C5:11 (circuit short to ground) for its 2024-2025 gasoline-engine OBD monitor strategy as exhaust flow control valve “a” control circuit low. 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
P26C5:12
Exhaust Flow Control Valve “A” Control Circuit High Ford · engine Data confidence 94%

Ford documents P26C5:12 (circuit short to battery) for its 2024-2025 gasoline-engine OBD monitor strategy as exhaust flow control valve “a” control circuit high. 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
P26C5:13
Exhaust Flow Control Valve “A” Control Circuit/Open Ford · engine Data confidence 94%

Ford documents P26C5:13 (circuit open) for its 2024-2025 gasoline-engine OBD monitor strategy as exhaust flow control valve “a” control circuit/open. 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

Related and nearby codes

How to read P26C5

P

Powertrain: engine, transmission and driveline systems.

2

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

6C5

Specific fault index within the subsystem.

Frequently asked questions about P26C5

What does P26C5 mean?

Diagnostic Trouble Code (3 variants). Ford documents P26C5:11 (circuit short to ground) for its 2024-2025 gasoline-engine OBD monitor strategy as exhaust flow control valve “a” control circuit low. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Is P26C5 generic or manufacturer-specific?

P26C5 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Ford. Always read it in the context of your vehicle.

Can TuningBot remove P26C5 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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