OBD-II code · Powertrain (generic)
P0335 Crankshaft Position Sensor "A" Circuit Malfunction
The crankshaft position (CKP) sensor signal is missing or implausible. The CKP is essential — without it the ECU cannot synchronise injection or ignition, and the engine will not start or will stall.
Is it safe to drive with P0335?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor failed (heat damage common)
- Less likelyReluctor ring damaged or contaminated with metal debris
- PossibleWiring or connector fault
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–4 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Crankshaft Position Sensor, Reluctor Ring, Crankshaft Position Sensor Wiring
Related codes
- P0332Knock Sensor 2 Circuit Low Input (Bank 2)
- P0333Knock Sensor 2 Circuit High Input (Bank 2)
- P0334Knock/Combustion Vibration Sensor B Circuit Intermittent
- P0336Crankshaft Position Sensor "A" Circuit Range/Performance
- P0337Crankshaft Position Sensor "A" Circuit Low Input
- P0338Crankshaft Position Sensor "A" Circuit High Input
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.