P0335 — Crankshaft position sensor circuit malfunction
The crankshaft position sensor signal is missing or wrong — a frequent cause of stalling or no-start.
What it means in plain English
P0335 flags a crankshaft position sensor circuit problem. Without a reliable crank signal, many engines won’t run. Intermittent heat-related failures are classic. Sensor location and labor vary by engine.
Common causes
- Failed crankshaft position sensor
- Wiring damage (heat, chafing)
- Reluctor / tone ring issues
- Connector corrosion
What you can safely check
- If the car stalls and restarts when cooled, tell the shop — pattern matters.
- Don’t keep cranking endlessly; note battery state.
Pull the code yourself (disclosed)
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A reusable Bluetooth OBD-II scanner lets you read the code and freeze-frame data before authorizing “mystery” diagnostics. One option: BlueDriver Bluetooth Pro OBD-II scan tool (BlueDriver/Levanta affiliate). Any capable OBD-II reader is fine — this is not required to use Fair Auto Shops.
When to go to a shop
Ask for signal verification. On some engines the sensor is easy; on others it’s buried — labor should be itemized.
Typical related repair costs (U.S. national averages)
These are related repairs shops may find after diagnosis — not a guaranteed bill for every P0335. Ranges exclude taxes, fees, diagnostics, and your location.
- $230–$335 national average for crankshaft position sensor replacement (RepairPal; estimates last updated September 3, 2026; excludes taxes/fees and location; source). Labor $144–$211; parts $86–$124.
Related cost guides: Crankshaft Position Sensor
Questions to ask before you authorize work
Use questions before you authorize a repair and how to read a repair estimate. Watch for patterns in spotting upselling.
Find an honest independent shop
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FAQ
What should I do first with a P0335 code?
Photograph all codes, note symptoms and whether the light is flashing, avoid clearing data until a shop sees it, then use an independent shop with a clear diagnostic plan.
More check-engine codes
P0420 · P0430 · P0300 · P0301 · P0171 · P0174 · P0455 · P0456 · P0442 · P0446 · P0128 · P0401 · P0133 · P0113 · P0506 · P0507 · P0700 · P0741 · P0011 · P0325 · P0340 · P0101 · P0299 · P0135 · P0440 · P0441 · P0010 · P0500 · P0121
Hub: How to read a check-engine code · Repair cost guides · Affiliate disclosure