Parts for your 2016 Toyota Prius-Crank angle sensor

2016 Toyota Prius crank-angle sensor: what it does and how to look after it

Using Toyota technical sources, it’s clear the 2016 Toyota Prius (ZVW50 series) is fitted with a crank-angle sensor (Toyota calls it the Crankshaft Position Sensor). Evidence includes: Toyota Service Information (TIS) – 2016 Prius Repair Manual, SFI System, which documents DTC P0335/P0339 and CKP inspection/removal, 2016 Prius New Car Features (NCF), Engine Control section describing the NE (crank) signal used by the ECM, and the Toyota Electrical Wiring Diagram showing the CKP sensor circuit to the ECM. So yes—this part is used and relevant on the 2016 Prius.

The crank-angle sensor on the 2016 Prius is the timekeeper for the petrol engine. It tracks the exact position and speed of the crankshaft so the engine control module can fire the injectors, command ignition, and phase valve timing right on the money. In a hybrid like the Prius, the engine stops and starts frequently, that makes a clean, reliable crank signal essential for seamless restarts and smooth handovers between electric and engine power.

There’s no scheduled replacement interval for the sensor, it’s typically a fit-and-forget item. That said, distance, heat, vibration, or oil contamination can eventually cause trouble. Common symptoms include:

• Hard starting, or the engine failing to start when the hybrid system requests it
• Intermittent stalling under load or at idle when the engine is running
• Rough running, poor fuel economy, or the MIL on with codes like P0335/P0339

Servicing advice is straightforward. Keep the area around the sensor clean and dry, if there’s an oil weep near the front of the engine, get it sorted so it doesn’t wick into the connector. During routine servicing, a quick visual of the sensor harness for rub-through, brittle conduit, or loose clips is cheap insurance.

If replacement is needed, use a quality OE-equivalent sensor and a fresh O-ring. Because the hybrid system can start the engine unexpectedly, switch the ignition off and disconnect the 12‑volt negative terminal before spanners come out. Access is usually from underneath with the engine under-cover removed. Lightly oil the new O-ring, seat the sensor squarely, and torque the hold-down bolt to the factory spec. Route the loom exactly as per the original to avoid chafe. After refitting, reconnect the 12‑volt battery, clear any codes, and verify a clean crank signal with a scan tool. A short road test—several start/stop cycles and a few kilometres at varied speeds—confirms all’s well.

Popular questions about the 2016 Toyota Prius crank-angle sensor

Does a 2016 Prius actually have a crank-angle sensor?
Yes. Toyota’s own Repair Manual and New Car Features documents list a Crankshaft Position Sensor (often called a crank-angle sensor). It supplies the NE signal the ECM uses to control fuel, spark, and engine restarts in hybrid operation.

What are the signs the sensor is failing on a 2016 Prius?
Owners may notice the engine won’t kick in when requested, intermittent stalling, rough running, or the check engine light with codes like P0335/P0339. Because the engine stops and starts often, faults can feel intermittent—scanning live data helps confirm.

Should it be replaced as preventative maintenance?
There’s no routine interval. It’s replaced on condition—when diagnostics show a bad signal, internal fault, damaged connector, or oil intrusion. Keeping connectors clean and repairing any nearby oil leaks will help the sensor live a long life.