Parts for your 2017 Subaru Xv-Crank angle sensor

2017 Subaru XV crank angle sensor (crankshaft position sensor)

Technical sources including the Subaru XV (GP-series) factory service manual for Engine Diagnostics (DTC P0335/P0336), the Subaru Global Technical Information System, and OEM parts catalogues confirm the 2017 Subaru XV is fitted with a crankshaft position sensor—commonly called a crank angle sensor. It’s a core input the ECU relies on for spark, fuel, and variable valve timing control.

On the 2017 XV, the crank angle sensor reads a toothed reluctor on the crankshaft and sends a clean timing signal so the ECU knows exact crank speed and position. That data lets the engine fire the coils and injectors at the right moment, keep idle stable, support AVCS (variable cam timing), and run the tachometer. If this signal goes missing or noisy, the XV can crank but not start, stumble, or cut out under load.

There’s no routine replacement interval for the sensor itself, but it’s smart to include a quick check during servicing. Under the bonnet, inspect the sensor body and harness for oil wicking, heat hardening, rubbing, or loose connectors. A light film of clean engine oil on the O‑ring is normal, heavy oil contamination or a cracked housing is not. Any stored fault codes like P0335/P0336 point straight to the crank signal path—sensor, wiring, or ECU pinning.

Replacement is straightforward and usually a driveway job for a competent DIYer, or an easy add-on for a workshop service:

• Disconnect the battery.
• Unplug the sensor connector and remove the single retaining bolt.
• Gently twist and pull the sensor free, keep the O‑ring seat clean.
• Lightly oil the new O‑ring, install, and torque the bolt to workshop spec.
• Reconnect, clear DTCs, and verify with a warm idle and road test.

Tell-tale signs of a crook crank angle sensor on a 2017 XV include intermittent no‑start when hot, sudden stalling with the tacho dropping to zero, rough idle, misfires under load, or the MIL on with P0335/P0336. Because the signal is critical, fitting a quality OEM‑equivalent sensor and keeping the loom clipped clear of heat and sharp edges is the go. There’s no adjustable gap on this setup, so if it’s installed square with a good O‑ring and tight connector, it’ll usually run sweet for years.

Popular questions

Where is the crank angle sensor on a 2017 Subaru XV?
It’s mounted on the engine block near the rear of the crankshaft, reading a toothed wheel. Access is from the top or front depending on engine variant, with a single bolt and a two‑pin connector.

What are the symptoms of a failing crank angle sensor on this model?
Common symptoms are intermittent no‑start, sudden stalling, rough idle, poor acceleration, and DTCs P0335/P0336. The tacho may drop to zero as the signal cuts out.

Should the sensor be replaced as routine maintenance?
No set interval—treat it as “inspect and replace on condition.” Check the connector and wiring at each major service, and replace the sensor if there are faults, damage, or confirmed signal issues.