Parts for your 2006 Toyota Vitz|yaris-Crank angle sensor

2006 Toyota Vitz/Yaris Crank Angle Sensor — What It Does and How to Look After It

Based on Toyota’s technical literature for the XP90 series (2005–2010) — including the Engine Control sections of the Toyota Repair Manual for 1KR‑FE, 2SZ‑FE and 1NZ‑FE engines — a crankshaft position sensor (often called a crank angle sensor) is fitted and used for engine management. The same is reflected in Toyota’s Electronic Parts Catalogue, which lists a serviceable crankshaft position sensor for these engines. So yes, the 2006 Toyota Vitz/Yaris relies on this sensor.

On this model, the crank angle sensor feeds the ECU with precise crankshaft speed and position data. That info is critical for timing fuel injection and spark, stabilising idle, and enabling quick starts on chilly mornings. Without a clean signal, the ECU can’t correctly sync ignition and fuelling, which is why a crook sensor can cause a no‑start or rough running.

As a general rule, the sensor isn’t a scheduled service item. It’s maintained by keeping the engine bay tidy, ensuring good battery health, and fixing oil leaks promptly so the connector and O‑ring aren’t soaked. When faults do appear, the ECU often logs codes such as P0335 or P0339, and the Check Engine Light may come on.

• Common clues it needs attention: hard or no start, stalling at idle, misfiring, uneven acceleration, poor fuel economy, or intermittent cut‑out once hot.
• Quick checks: inspect the wiring and connector for damage or oil contamination, confirm strong battery voltage, scan for related DTCs.

Replacement is straightforward for a competent technician. Typical steps include disconnecting the battery, unplugging the sensor, removing a single retaining bolt, and easing the sensor out of the block. The new unit should have a fresh O‑ring lightly oiled before installation. The retaining bolt must be tightened to the manufacturer’s spec — over‑tightening can crack the housing, while under‑tightening risks vibration‑related faults.

Owners are best to fit an OEM‑quality sensor so the signal pattern matches Toyota’s calibration. There’s no adjustment of air gap on these engines, the design is fixed, so correct seating and the right part number matter. After replacement, a quick road test and a scan to confirm no returning fault codes helps ensure the Vitz/Yaris is back to smooth, reliable running across Aussie and Kiwi conditions.

Popular questions about the 2006 Toyota Vitz/Yaris crank angle sensor

Where is the crank angle sensor located on a 2006 Vitz/Yaris?
It’s mounted on the engine block near the crankshaft, typically low on the timing or transmission side depending on the engine variant (1KR‑FE, 2SZ‑FE or 1NZ‑FE). Access is from the engine bay, some models may need an intake duct or splash shield moved for room.

Owners will see a small sensor with a single bolt and a two‑ or three‑pin connector. If it’s oily or the wiring is brittle, that’s a red flag.

What fault codes point to a bad crank angle sensor?
Common ECU codes are P0335 (Crankshaft Position Sensor “A” Circuit) and P0339 (intermittent signal). These can be triggered by a failed sensor, damaged wiring, a weak battery, or connector corrosion.

Clearing codes without fixing the root cause usually sees them return. Proper diagnosis includes visual checks and live‑data monitoring.

Can the car be driven with a failing crank angle sensor?
Sometimes it will run but may stall or refuse to restart when hot, which isn’t ideal on NZ or Aussie roads. If the signal drops out entirely, it often won’t start at all.

For safety and to avoid being stranded, it’s wise to repair or replace the sensor promptly once symptoms or codes appear.