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TuningBot DTC Database · v4.37.14

P0571 Diagnostic Trouble Code (3 variants)

Generic (OBD-II) interpretation + 1 manufacturer-specific in the TuningBot DTC database.

P · PowertrainDriver_assistanceOBD2
Brand pages:Ford

Generic (OBD-II) interpretation

P0571
Cruise Control/Brake Switch A Circuit Malfunction Generic · driver_assistance Data confidence 90%

The control module detected improper operation of the Cruise Control/Brake Switch A circuit.

Possible causes

  • Wiring
  • cruise/brake switch
  • ECM

Manufacturer-specific interpretations

Ford

3 interpretations
P0571:96
Brake switch A/B correlation Ford · engine Data confidence 94%

Ford documents P0571:96 (component internal failure) for its 2024-2025 gasoline-engine OBD monitor strategy as brake switch a/b correlation. 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
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P0571:9E
Brake switch circuit low Ford · engine Data confidence 94%

Ford documents P0571:9E for its 2024-2025 gasoline-engine OBD monitor strategy as brake switch 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
P0571:9F
Brake switch circuit high Ford · engine Data confidence 94%

Ford documents P0571:9F for its 2024-2025 gasoline-engine OBD monitor strategy as brake switch 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

Related and nearby codes

Related codes
P0504P0572P0573
P05 range
P0500P0501P0502P0503P0505P0506P0507P0508P0509P050AP050BP050CP050DP050EP050FP0510P0511

How to read P0571

P

Powertrain: engine, transmission and driveline systems.

0

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

571

Specific fault index within the subsystem.

Frequently asked questions about P0571

What does P0571 mean?

Diagnostic Trouble Code (3 variants). The control module detected improper operation of the Cruise Control/Brake Switch A circuit.

Is P0571 generic or manufacturer-specific?

P0571 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 P0571 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

Stage 1/2/3 TuningDPF RemovalEGR RemovalAdBlue / SCR RemovalDTC RemovalIMMO OFFSpeed Limiter (Vmax)

Understand the system behind this code: Diagnostic Strategy and DTC Logic

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

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