Parts for your 2010 Toyota Prius-Crank angle sensor

2010 Toyota Prius crank-angle sensor (crankshaft position sensor)

Yes, the 2010 Toyota Prius is fitted with a crank-angle sensor (commonly called a crankshaft position or CKP sensor). This isn’t guesswork: Toyota’s Technical Information System (TIS) Repair Manual for the 2010 Prius lists diagnostic trouble codes P0335/P0339 for the CKP circuit, and the Toyota Electrical Wiring Diagram identifies the “NE” crank sensor signal into the engine ECU. Those technical sources confirm the sensor is present and monitored by the factory diagnostics.

On the 2ZR-FXE engine, the crank-angle sensor tracks crankshaft speed and exact position so the ECU can time fuel injection and ignition, synchronise with the cam sensor, and manage the Prius’s frequent engine stop–start events. Without a clean crank signal, the petrol engine won’t start reliably under the bonnet, can stall when switching from electric to engine power, or will log a check engine light.

It’s not a routine service item, but it does benefit from a quick look during scheduled servicing: check the connector for oil contamination, make sure the harness isn’t rubbing on the timing cover, and keep the area free of metal shavings. Typical fault clues include:

• Hard starting or no-start, especially warm restarts
• Intermittent stalling as it transitions between EV and engine drive
• Rough running, poor economy, or DTCs P0335/P0339

If replacement is needed, a quality OE-equivalent sensor is the go. A technician will make the vehicle safe (READY off, 12‑volt battery disconnected), access the sensor low on the timing cover, unplug it, remove the retaining bolt, and twist the sensor out. A fresh O‑ring lightly oiled helps it seat cleanly on refit. After installation, they’ll clear codes, check live data to confirm a stable RPM signal, and road test. On Toyota hybrids of this era, a special crank “relearn” is typically not required.

Handy tips:

• Choose genuine or reputable OE brands to avoid signal noise dramas
• Inspect the cam sensor and wiring at the same time—faults can mimic each other
• If oil is wicking into the connector, address any nearby seal leaks

There’s no kilometre-based replacement interval, it’s replaced on condition. If the dash lights up or the engine behaviour goes a bit crook, a quick scan for codes and a wiring check can save time and labour.

Popular questions

Does the 2010 Prius actually have a crank-angle sensor?

It does. Toyota’s TIS Repair Manual lists CKP-related DTCs (like P0335) for the 2010 Prius, and the factory wiring diagram shows the crank sensor (“NE” signal) feeding the engine ECU. That’s straight from Toyota’s technical documentation.

Where is the crank-angle sensor on a 2010 Prius?

It’s mounted low on the engine’s timing cover near the crankshaft pulley. Access is usually from underneath or the right-hand wheel arch with the splash shield removed. The sensor reads a toothed wheel on the crank to determine position and speed.

Should it be replaced during normal servicing?

No, there’s no scheduled interval. It’s replaced if it fails or shows intermittent faults. During routine servicing, a quick visual check of the connector and loom is worthwhile, especially if there are starting issues or a check engine light.