P0335 is reported as crankshaft-position sensor a circuit fault. The next step depends on the full scan and the exact vehicle, not the code alone.
If the check-engine light is flashing, the engine runs roughly, or the vehicle is losing power, pull over safely and arrange help. Otherwise save the scan and arrange diagnosis.
This Ford document supports only its stated code and vehicle context. The code alone cannot identify a failed part, prove that another make uses the same definition, or clear a car for driving. Compare your full scan with the current exact-vehicle service information.
Read the Ford original: 2020-2023 Gasoline OBD Operations Summary: CKP circuit P0335 Source date: 2023-10-23; research checked: 2026-11-01.
What this code means
P0335: Crankshaft-position sensor A circuit fault. This is a source-scoped technical description. It does not prove that any named component has failed.
Namespace manufacturer_document_context
Make scope Source-specific manufacturer context; other vehicles need confirmation
Definition status source scoped interpretation vehicle applicability unverified
Why this exact code matters
Ford's gasoline OBD summary describes a missing crankshaft-position signal in its monitor context. A stall or no-start needs the exact signal path and companion codes checked; do not infer a failed sensor from the number alone.
Compare P0340: cam-position circuit. A related code is a different observation, not a second diagnosis.
What to record
- Record the exact code, suffix, stored/pending/permanent status, and freeze-frame data before clearing anything.
- Record all other codes and the dashboard message; one code can be secondary to another system fault.
- Ask a qualified shop for an exact-year, exact-engine diagnostic procedure.
Before buying a part
Match the exact VIN, engine, options and current OEM part number. A code lookup alone cannot approve a replacement.
What the source does and does not establish
Ford's gasoline OBD summary describes a missing crank signal in its monitor context. That does not by itself establish a failed sensor across makes.
Evidence to preserve
- Crank/no-start versus stall behavior and exact timing
- All cam/crank and power-supply codes
- Battery voltage and available engine-speed data during the event
Specific questions for a shop
- Is the crank signal missing at the sensor, connector or control module under the fault condition?
- Were wiring, power and mechanical timing checked before replacing the sensor?
Vehicle and scanner limits
We have not verified this code for every make, model, year or engine. A generic emissions scanner may not read the body, chassis, transmission or EV module that holds related faults. Compare the full scan with the owner manual and manufacturer service information.
Sources and scope
- Ford — 2020-2023 Gasoline OBD Operations Summary: CKP circuit P0335 Document: 2023-10-23 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.