Parts for your 2017 Toyota Vitz|yaris-Crank angle sensor

2017 Toyota Vitz/Yaris crank-angle sensor — purpose, servicing and common questions

Based on Toyota’s own technical literature — the Toyota Repair Manual (RM), New Car Features (NCF) and the Toyota Electronic Parts Catalogue (EPC) for the KSP/NSP/NCP130-series — the 2017 Toyota Vitz/Yaris is fitted with a crank-angle sensor (also called a crankshaft position sensor or CKP) across its common engines, including 1KR-FE (1.0L), 1NR-FKE (1.3L), 1NZ-FE (1.5L) and the 1NZ-FXE hybrid variant. These sources list the CKP as an engine management input, confirm its location on the engine block, and specify it as a service-replaceable component.

On this model, the crank-angle sensor monitors the precise rotational position and speed of the crankshaft by reading a toothed reluctor wheel. The engine control module uses that signal to time spark and fuel delivery, sync with the cam sensor, and manage idle and starting. If the CKP signal drops out or goes skew-whiff, it can cause a no-start, misfire, poor fuel economy, or stalling — so it’s a small part with a big job.

There’s no routine replacement interval for the crank-angle sensor on a 2017 Vitz/Yaris. It’s a “fit and forget” item that’s replaced when faulty, when contaminated by metal debris, or if the connector or wiring has suffered heat or oil damage. During regular servicing, a quick visual under the bonnet to check the sensor area for oil leaks, hardened wiring looms, or loose connectors is worthwhile. If the check engine light appears with codes like P0335–P0339, diagnostics should include live data and a wiring inspection before calling the sensor itself.

• Typical symptoms: hard starting, intermittent stalling, uneven idle, tach needle dropping to zero, and stored CKP-related fault codes.
• Good practice: keep the connector clean and latched, fix nearby oil leaks promptly, and ensure engine mounts and earths are sound to avoid vibration-related wiring faults.

Replacing the sensor is straightforward: disconnect the battery, access the sensor on the block near the crank pulley or transmission bellhousing (location varies by engine), remove the single retaining bolt, and ease the sensor straight out. Fit a new O-ring if applicable, lubricate lightly with clean engine oil, seat it squarely, and tighten the bolt to the workshop manual spec (often around 8–10 N·m, but always check the RM for your exact engine). No special relearn is usually required on Toyotas — a clear of codes and a short drive cycle generally does the trick.

Popular questions

Does the 2017 Toyota Vitz/Yaris actually have a crank-angle sensor?
Yes. Toyota’s RM/NCF and EPC for the 130-series Vitz/Yaris list a crankshaft position (crank-angle) sensor for the 1KR-FE, 1NR-FKE, 1NZ-FE and 1NZ-FXE engines. It’s mounted to the engine block and reads a toothed wheel on the crank.

What are the signs the crank-angle sensor is failing on this model?
Common clues include hard starting or a complete no-start, random stalling at lights, rough idle, poor fuel economy, and the tacho dropping to zero while cranking. The engine ECU may log P0335–P0339. Always rule out wiring or connector damage before replacing the sensor.

When should it be replaced and how long does it take?
There’s no scheduled interval — it’s replaced on condition. Most workshops can swap it in about 0.5–1.0 hour. Use a quality replacement, renew the O-ring, and torque the retaining bolt to spec per the Toyota RM.