Fault codes › Powertrain › Generic (SAE standard) › Ignition system or misfire
P0335 Crankshaft position sensor circuit
Urgent Risk of damage or of being stranded. Stop, or get it seen, now.
What does P0335 mean?
P0335 is a generic powertrain code, defined by the SAE standard, so it means the same thing on every make and model: crankshaft position sensor circuit. It belongs to the ignition system or misfire group of codes.
A control module stores the code when something it watches stays outside what it expects for long enough. On its own the code says which system complained, not which part has failed — the causes below, most likely first, are where to start.
Is it safe to drive with P0335?
Urgent. Can strand you without warning — fix before relying on the car.
Common causes of P0335
- Failed crank sensor.
- Damaged reluctor ring.
- Wiring or connector fault.
Symptoms
- Cutting out.
- Refusing to start.
- Tachometer dropping to zero.
What to check first
- Sensor signal while cranking.
- Air gap and reluctor teeth.
- Wiring.
Can I just clear P0335?
You can, and the light goes out — but a fault that is still there sets the code again, often within a drive or two. Clearing also erases the freeze frame (what the engine was doing when the code was stored) and resets the emissions readiness monitors, so an MOT, smog or inspection test will wait until they have run again. Fix the cause first, then clear it, then watch whether it returns.
Read and clear P0335 from your iPhone with OBDTrip
Plug a Bluetooth OBD-II adapter into the car and OBDTrip reads every stored, pending and permanent code, explains each one in plain English like this, shows what the engine was doing when it was set, and clears the check engine light once the fault is fixed. It keeps a history of when each code comes back, and records every drive on its own from then on.
Needs a Bluetooth Low Energy adapter such as the Vgate iCar Pro — which adapters work with iPhone. Reading and clearing codes is part of an OBDTrip subscription.
Related codes
- P0300 Random/multiple cylinder misfire
- P0301 Cylinder 1 misfire
- P0302 Cylinder 2 misfire
- P0303 Cylinder 3 misfire
- P0304 Cylinder 4 misfire
- P0305 Cylinder 5 misfire
General guidance from OBDTrip's fault-code catalogue, not a diagnosis of your car. When a code points to brakes, steering, overheating or a flashing check engine light, have the car looked at before driving on.