Parts for your 2019 Toyota Vitz|yaris-Crank angle sensor

2019 Toyota Vitz/Yaris crank-angle sensor

Yes, the 2019 Toyota Vitz/Yaris uses a crank-angle sensor — more commonly called the crankshaft position sensor (CKP). Toyota’s factory Repair Manual and New Car Features documentation for the XP130-series engines (such as the 1KR-FE, 1NR-FE and 2NR-FKE) describe the CKP as providing the engine control module (ECM) with the crank angle and speed signal used for ignition and fuel injection timing. Toyota’s diagnostics also list DTCs like P0335/P0339 for crankshaft position sensor faults in this model line, and the Electrical Wiring Diagram shows the CKP wired directly to the ECM as a primary timing input. Those technical sources make it clear the sensor is fitted and critical to engine operation.

On the 2019 Vitz/Yaris, the crank-angle sensor keeps the whole show on the road by telling the ECM exactly where the crankshaft is and how fast it’s rotating. With that timing info, the ECM can fire the spark and deliver fuel precisely when needed. If the sensor drops out, timing goes walkabout: the engine may crank but not start, stumble, misfire, stall at idle, or flick on the check engine light. Because it’s a key reference signal, it’s not a “nice-to-have” — it’s essential.

As for servicing, the crank-angle sensor isn’t a scheduled replacement item, it’s replaced on condition. A smart approach at routine services is to:

• Visually check the harness and connector for chafing, oil intrusion, corrosion or a loose fit.
• Avoid blasting the area with a pressure washer or soaking it in degreaser.
• If the timing cover or front crank seal is weeping, sort the leak so the sensor tip stays clean.
• If the engine has had timing or bottom-end work, confirm the sensor is seated squarely and the air gap to the reluctor ring is within spec (refer to the Toyota Repair Manual for the exact clearance).

When replacement’s needed, go for a quality OE or OEM-equivalent sensor. Disconnect the battery, remove the retaining bolt, ease out the old sensor, lightly oil the O-ring on the new one, and install it straight and true. Tighten the retaining bolt to the factory torque spec from the manual. After refitting, clear any codes, then start and warm the engine — a quick scan for live data (engine speed signal stable, no dropouts) is a tidy final check. If a no-start or intermittent stall persists, test the wiring back to the ECM and verify the crank trigger wheel isn’t damaged. Many workshops will confirm the CKP signal with an oscilloscope, especially if there’s also a cam sensor correlation fault. Treat it right and the sensor will generally last the life of the vehicle.

• Where is it located? Typically bolted to the lower engine block reading a toothed wheel on the crank. Depending on the engine variant, it’s usually near the crank pulley at the front of the engine or by the transmission end. Access is from underneath or through the wheel well.
• Common symptoms of failure Hard starting or no start, random stalling, rough idle, misfires, poor performance, and a check engine light with codes such as P0335 or P0339.
• Replacement interval Not scheduled. Replace only if faulty or damaged, focus on good wiring condition and leak-free surroundings during regular services.

Popular questions about the 2019 Toyota Vitz/Yaris crank-angle sensor

Where is the crank-angle sensor on a 2019 Toyota Vitz/Yaris?
It’s mounted to the engine block so it can “read” a toothed wheel on the crankshaft. On the common petrol engines used in this model year, you’ll usually find it low on the engine, either near the front crank pulley or at the gearbox end. Access varies by engine code, splash shields and whether the car is on stands.

What are the signs the crank-angle sensor is failing?
Expect hard starting or a no-start, stalling at lights, erratic tachometer behaviour, misfires and a check engine light. Scan tools often show codes like P0335/P0339. If the engine died suddenly and now just cranks, the CKP is a prime suspect — though wiring damage and a faulty cam sensor can produce similar symptoms.

Does it need routine replacement?
No. It’s not a consumable. Replace it only if diagnostics point to a fault. During regular servicing, keep an eye on the connector and wiring, fix any nearby oil leaks, and avoid water intrusion. Using a genuine or quality brand sensor pays off in reliability.