Parts for your 2015 Toyota Prius-Crank angle sensor

2015 Toyota Prius crank-angle sensor: what it is and how it’s looked after

Based on Toyota’s factory service information (TIS) for the 2015 Prius ZVW30 with the 2ZR‑FXE engine, diagnostic trouble codes P0335 and P0336 are defined for the Crankshaft Position Sensor. Genuine parts catalogues for the same vehicle also list a “Sensor, Crank Position.” These technical sources confirm the 2015 Toyota Prius is fitted with a crank‑angle sensor (crankshaft position sensor, CKP).

The crank‑angle sensor on the 2015 Prius plays a critical role in how the hybrid’s petrol engine behaves. It reports the exact position and rotational speed of the crankshaft to the engine control module, allowing precise fuel injection and ignition timing. Even though the Prius can spin the engine with MG1 (the motor‑generator) rather than a traditional starter, it still relies on the CKP to know when to fire the spark and meter fuel. When the sensor signal is on the money, the engine starts cleanly, idles smoothly and delivers good economy across Aussie and Kiwi roads.

In regular servicing, the CKP isn’t a scheduled replacement item. Instead, good practice is to check the wiring harness and connector for oil seepage, corrosion or a loose fit, especially after work around the front of the engine. Keeping the area clean and ensuring the loom is correctly clipped helps avoid intermittent signals. Technicians typically watch for fault codes like P0335/P0336, extended cranking (rare on a Prius), a no‑start condition, engine stalling when the petrol engine cuts in, or a misfire under load.

If replacement is needed, access is usually from under the car near the bottom of the engine, where the sensor reads a toothed reluctor on the crank. A quality OE‑spec sensor and a fresh O‑ring are recommended. The mating surface should be clean and dry, the sensor seated fully, and the mounting bolt tightened to the factory torque from Toyota service data. A quick scope or scan‑tool check to confirm a clean RPM signal is a tidy way to finish the job.

Hybrid‑specific safety matters: the vehicle can start the engine automatically when in READY. For any work under the bonnet or underbody, ensure the car is OFF (not READY), the 12‑volt negative terminal is disconnected, and all high‑voltage orange cables are avoided. Follow Toyota service procedures if the HV system needs to be disabled.

• Typical signs of trouble: MIL on, P0335/P0336, stalling as the engine engages, poor performance, or a no‑start.
• Prevention: keep connectors clean, looms secured, and avoid oil leaks onto the sensor area.
• Parts choice: stick with OE or reputable aftermarket to ensure accurate timing signals.

Popular questions about the 2015 Toyota Prius crank‑angle sensor

Does the 2015 Prius actually have a crank‑angle sensor?
Yes. Toyota’s service information lists DTCs P0335/P0336 for the Crankshaft Position Sensor, and parts catalogues show a dedicated “Sensor, Crank Position” for the 2ZR‑FXE engine used in the 2015 Prius. It’s essential for timing and engine synchronisation in this hybrid.

Where is the crank‑angle sensor located on a 2015 Prius?
It’s typically mounted low on the engine block near the crank pulley/flywheel area, reading a toothed ring on the crankshaft. Access is usually from underneath. The connector and loom run up the front of the engine, keeping that area clean and properly clipped helps reliability.

Does the crank‑angle sensor need routine replacement?
No. It’s not a consumable. It’s replaced only if faulty or contaminated/damaged. During servicing, technicians check for oil leaks, broken clips, corrosion at the connector, and any stored DTCs. If symptoms or codes appear, diagnosis should confirm the sensor or wiring before swapping parts.