Cylinder 1 Deactivation/Intake Valve Control Circuit Low
Ford · engine
Data confidence94%
Ford documents P3401:11 (circuit short to ground) for its 2024-2025 gasoline-engine OBD monitor strategy as cylinder 1 deactivation/intake valve 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 toFord gasoline-engine OBD applications|2024-2025 model years
P3401:12
Cylinder 1 Deactivation/Intake Valve Control Circuit High
Ford · engine
Data confidence94%
Ford documents P3401:12 (circuit short to battery) for its 2024-2025 gasoline-engine OBD monitor strategy as cylinder 1 deactivation/intake valve 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 toFord gasoline-engine OBD applications|2024-2025 model years
P3401:13
Cylinder 1 Deactivation/Intake Valve Control Circuit/Open
Ford · engine
Data confidence94%
Ford documents P3401:13 (circuit open) for its 2024-2025 gasoline-engine OBD monitor strategy as cylinder 1 deactivation/intake valve 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 toFord gasoline-engine OBD applications|2024-2025 model years
P3401:92
Cylinder 1 Deactivation/Intake Valve Control Circuit Performance
Ford · engine
Data confidence94%
Ford documents P3401:92 for its 2024-2025 gasoline-engine OBD monitor strategy as cylinder 1 deactivation/intake valve control circuit 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
Inspect relevant wiring and connectors
Check power supplies and grounds
Compare commanded and measured values
Check applicable OEM service information
Applies toFord gasoline-engine OBD applications|2024-2025 model years
Powertrain: engine, transmission and driveline systems.
3
Generic SAE-standard code: same meaning on every make.
401
Specific fault index within the subsystem.
Frequently asked questions about P3401
What does P3401 mean?
Diagnostic Trouble Code (4 variants). Ford documents P3401:11 (circuit short to ground) for its 2024-2025 gasoline-engine OBD monitor strategy as cylinder 1 deactivation/intake valve control circuit low. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.
Is P3401 generic or manufacturer-specific?
P3401 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 P3401 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.
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