Parts for your 2007 Toyota Vitz|yaris-Crank angle sensor

2007 Toyota Vitz/Yaris Crank Angle Sensor (Crankshaft Position Sensor)

Based on Toyota’s technical documentation for the XP90 series Yaris/Vitz with the 1NZ-FE engine, a crank angle sensor (referred to by Toyota as the Crankshaft Position Sensor, CKP) is fitted and used by the engine control module. Toyota’s service manuals and Electrical Wiring Diagram for 2007 identify the NE signal from the CKP as essential for ignition and fuel timing, and Toyota diagnostic literature lists DTCs such as P0335–P0339 for CKP faults. Genuine parts catalogues for the 1NZ-FE also list a “Sensor, Crank Position,” confirming fitment on the 2007 Vitz/Yaris.

On a 2007 Toyota Vitz/Yaris, the crank angle sensor is the quiet achiever that lets the engine computer know exactly where the crankshaft is and how fast it’s spinning. With that info, the ECM fires the spark and meters the fuel at just the right moment. Lose that signal and the car may crank but won’t start, or it might stall or run rough. It’s a small, tough magnetic sensor mounted low on the engine near the crank pulley/timing cover, reading a toothed wheel on the crank.

As a general rule, the CKP isn’t a routine service item—there’s no scheduled replacement. That said, a bit of care goes a long way. During regular servicing, it’s worth having a quick look for oil leaks around the front of the engine that could soak the sensor, and checking the wiring loom for chafing or broken clips. Keeping the connector clean and latched properly helps avoid intermittent cut-outs that can be maddening to track down.

Typical signs the crank angle sensor may be having a moment include:

• Hard starting or a complete no-start after a hot soak
• Random stalling, especially when coming to a stop
• Misfires or a sudden drop of the tacho needle
• Check engine light with codes like P0335 (CKP circuit)

If replacement is needed, it’s a straightforward driveway job for a confident DIYer, though many will prefer a workshop:

1. Disconnect the battery (protects the electronics).
2. Raise the front and remove the lower splash shield for access.
3. Unplug the sensor connector, remove the retaining bolt, and gently twist-pull the sensor free (there’s an O-ring).
4. Lightly oil the new O-ring, seat the new sensor, and snug the bolt to about 8–10 N·m.
5. Reconnect, clear any codes, and road test. If idle’s a bit off, let it relearn with a short drive cycle.

Go for a quality OEM or reputable aftermarket sensor, cheapies can be flaky with heat. And if the fault came with oil contamination or a chafed harness, sort those root causes at the same time—no point fitting a new sensor only to cook it again.

Popular questions

Where is the crank angle sensor on a 2007 Vitz/Yaris?
It’s mounted low on the engine at the crankshaft end, reading a toothed wheel through the timing cover area near the crank pulley. Access is usually from underneath after removing the front undertray. The connector routes up the front of the engine—look for a small, single-bolt sensor with an O-ring.

Do I need to replace the crank angle sensor as part of regular servicing?
No scheduled replacement is required. It’s a fit-and-forget item unless symptoms or fault codes point to it. As part of routine servicing, a quick inspection for oil leaks, damaged wiring, or loose connectors is smart preventative maintenance.

What symptoms point to a failing crank angle sensor on this model?
Common signs include intermittent no-starts (especially hot), sudden stalls while idling or slowing down, misfires, and a check engine light with codes like P0335. If the tach drops to zero suddenly during a stall, that also hints at a CKP signal dropout.