Fault-Code Library · Engine speed sensing
P0335: Crankshaft position sensor circuit
The ECU is missing or cannot trust the crankshaft position signal.
Common symptoms
- •No start
- •Stalling when hot
- •Long cranking
- •Tachometer drop
Likely causes
- •Failed crankshaft sensor
- •Heat-related sensor fault
- •Damaged wiring
- •Reluctor wheel or signal gap issue
First checks
- •Check RPM signal while cranking
- •Inspect wiring near heat and moving parts
- •Scope the crank signal if the fault is intermittent
Important
A failing crank sensor can cause sudden stalling or a no-start condition.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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