What does code P0335 mean?
P0335 means there is a fault in the crankshaft position sensor 'A' circuit. This sensor tells the computer the engine speed and where the pistons are. Without its signal, the engine may not start or may cut out while driving.
Why does code P0335 appear?
- The crankshaft sensor has failed.
- The sensor's wire or plug is loose or damaged.
- The toothed ring the sensor reads (reluctor ring) is damaged.
- An engine computer fault. This is rare.
What can you safely check for P0335?
- With the engine off, check the battery terminals: they should be tight, with no white or green corrosion on them.
- Note whether the car cuts out once hot, or won't start when cold. This helps the mechanic find the cause.
Is it safe to drive with P0335?
With this code the engine can suddenly cut out while driving, which is dangerous on a highway. Avoid long trips and highways. If the car keeps cutting out, don't drive it: call a mechanic to where it is.
Safety: never remove the radiator cap on a hot engine; boiling coolant can burn you. Keep your hands away from the fan and belts while the engine runs. If you smell fuel, switch off, keep any flame or cigarette away and call a mechanic.
When should you call a mechanic?
If this code appears, call a car mechanic (mistri). They will test the sensor and wiring and tell you whether the sensor or the wiring needs fixing.