Parts for your 2006 Toyota Ractis-Camshaft sensor

2006 Toyota Ractis Camshaft Sensor — What It Does and How to Look After It

Yes, the 2006 Toyota Ractis uses a camshaft position sensor. Toyota’s technical literature for the XP100-series Ractis (covering the 1.3‑litre 2SZ‑FE and 1.5‑litre 1NZ‑FE engines) lists a “Camshaft Position Sensor (G2)” in both the Engine Control diagnostics and the Electrical Wiring Diagram. These materials explain that the ECM relies on the cam sensor for sequential fuel injection, ignition timing and VVT‑i control. See: Toyota Service Manual – Engine Control (1NZ‑FE/2SZ‑FE) DTC P0340/P0343 sections, and Toyota Electrical Wiring Diagram (Ractis SCP100/NCP100) showing the G2 signal to the ECM.

On this Ractis, the camshaft sensor sits at the end of the cylinder head near the timing chain cover. It tracks the cam angle so the ECM knows exactly which stroke each cylinder is on. That lets the car start promptly, run smoothly, and adjust valve timing on the fly for better torque, efficiency and emissions.

There’s no scheduled replacement interval for the cam sensor, but it should be checked if the Check Engine lamp pops up or if there’s rough idle, long cranking, poor economy, flat spots, or the car dropping into limp mode. Common fault codes include P0340 (Camshaft Position Circuit) and P0343 (High Input). Because these engines use VVT‑i, old or wrong‑grade oil can mimic sensor issues, so fresh, correct‑spec oil is a smart first step.

• Quick maintenance tips:
  • Keep the connector clean and seated, look for oil wicking into the plug.
  • Use quality oil and change it on time, varnish and sludge can confuse timing control.
  • If removing the sensor, lightly oil the O‑ring and torque the retaining bolt to about 8–10 N·m.

Replacement is straightforward for most home tinkerers. Disconnect the battery negative, unplug the sensor, remove the single retaining bolt, and ease the sensor out. Fit the new unit (OEM Denso or a high‑quality equivalent is recommended), seat the O‑ring squarely, and nip the bolt to spec. Clear any stored codes and take a short drive so the ECM can verify cam/crank correlation. If codes persist, inspect the harness and timing chain condition as the next steps.

Bottom line: on a 2006 Toyota Ractis, the camshaft sensor is a key player in quick starts, smooth running and proper VVT‑i operation. When it’s healthy—and the engine oil is too—the little Ractis feels perky and frugal, just as it should.

Popular questions about 2006 Toyota Ractis camshaft sensors

Does a 2006 Toyota Ractis actually have a camshaft sensor?
Yes. Toyota’s XP100 Ractis service information identifies a Camshaft Position Sensor (G2) on both 1NZ‑FE and 2SZ‑FE engines. It’s used for sequential injection, ignition timing, and VVT‑i control.

Where is the camshaft sensor on a 2006 Ractis?
It’s mounted at the end of the cylinder head by the timing chain cover. Under the bonnet, look at the timing chain side of the engine, you’ll see a small sensor held in with a single bolt and a two‑pin connector.

What are the symptoms and codes of a failing cam sensor?
Expect hard starting, rough idle, misfires, poor fuel economy, and reduced power. The Check Engine light may show codes like P0340 or P0343. Always check oil condition and wiring before condemning the sensor.