P0335 Subaru Forester
Crankshaft Position Sensor A Circuit Malfunction · Powertrain Code · Critical · Repair: Moderate
What is P0335?
The crankshaft position sensor circuit has a malfunction. Engine may crank but not start, or stall intermittently.
When the Subaru Forester triggers code P0335 (crankshaft position sensor a circuit malfunction), it typically points to an issue in the powertrain system. This is a critical severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Subaru Forester.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Subaru Forester.
Common Causes on Subaru Forester
- Failed crankshaft position sensor
- CKP sensor wiring damaged or connector corroded
- Damaged tone ring on the crankshaft
- Oil contamination on CKP sensor from front crank seal leak
Symptoms
- Check Engine Light on
- Engine cranks but does not start
- Intermittent stalling
- Random engine cutout
- No tach reading
Notes for Subaru Forester
On boxer engines, the CKP sensor is located near the front of the block behind the timing cover; access varies by model.