Parts for your 2006 Toyota Kluger-Camshaft sensor

2006 Toyota Kluger Camshaft Sensor — What It Does and When to Replace It

Technical references (Toyota Repair Manual for the 2006 Kluger/Highlander, Engine Control System for 2AZ‑FE and 3MZ‑FE, Toyota Electronic Parts Catalogue, and Toyota EWD wiring diagrams) all confirm the 2006 Toyota Kluger is fitted with camshaft position sensor(s). Those manuals list diagnostic trouble codes P0340 and P0345 for the Camshaft Position Sensor Circuit, which verifies the part is present on both the 2.4‑litre 2AZ‑FE and the 3.3‑litre 3MZ‑FE engines. The 2AZ‑FE has one sensor, the 3MZ‑FE V6 uses two (one per bank).

The camshaft sensor tells the engine control module exactly where the camshaft is, so it can sync fuel injection and spark timing and manage VVT‑i cam phasing. When it’s happy, the Kluger starts quickly, idles smoothly and uses fuel efficiently. If the signal goes missing, the ECM may fall back to a limp strategy, causing long cranks, rough running or stalling, and it’ll light the check engine lamp.

This isn’t a regular service item, so it’s not replaced on a schedule. Good oil quality is the quiet hero here: clean oil helps keep the VVT‑i system and cam timing stable, which in turn keeps the sensor reading clean. During routine servicing, a quick look for oil weeps at the sensor O‑ring and a tug test on the connector and harness is worthwhile.

Typical signs it’s on the way out include:

• Hard starting, intermittent stalling or misfire under load
• Poor fuel economy and sluggish performance
• Check engine light with codes like P0340/P0345

Replacement is straightforward for a competent DIYer or any workshop. On the 2AZ‑FE there’s a single sensor at the cylinder head near the timing chain end. On the 3MZ‑FE V6 there are two—Bank 1 (firewall side) and Bank 2 (radiator side). Usual steps: disconnect the battery, pull the engine cover, unplug the connector, remove the retaining bolt, twist the sensor free, lightly oil the new O‑ring, fit the new unit, and tighten the bolt to the workshop manual spec. Route the loom correctly, clear codes, and confirm no leaks. The ECM may take a short drive cycle to relearn cam/crank correlation.

If fresh sensors don’t sort it, check the VVT‑i oil control valves, timing components (belt on V6), wiring integrity and engine grounds. Sticking with quality OEM‑equivalent parts avoids intermittent dramas that cheap sensors can introduce.

Popular questions

Where is the camshaft sensor on a 2006 Toyota Kluger?
On the 2.4‑litre 2AZ‑FE, it’s on the cylinder head near the timing chain end. On the 3.3‑litre 3MZ‑FE V6, there are two sensors—one on each cylinder head: Bank 1 at the rear (firewall side) and Bank 2 at the front (radiator side).

Can a 2006 Kluger be driven with a bad camshaft sensor?
It might run, but it can be hard to start, feel gutless and may stall. It’s not recommended, as it can leave the driver stranded and may mask other issues. Best to diagnose and replace promptly.

Is the camshaft sensor a routine service replacement?
No. It’s replaced only when faulty. Keeping oil changes on time, checking the connector, and replacing a weeping O‑ring are the sensible maintenance steps.