Parts for your 2006 Toyota Camry-Camshaft sensor

2006 Toyota Camry camshaft-sensor — what it does and when to replace it

Based on Toyota’s factory Repair Manual and Electrical Wiring Diagram for the 2006 Camry, as well as the Toyota Electronic Parts Catalog and OBD‑II diagnostic charts, the 2006 Toyota Camry is fitted with a camshaft-sensor (camshaft position sensor). Both engines offered that year—the 2.4L 2AZ‑FE four-cylinder and the 3.3L 3MZ‑FE V6—use a camshaft-sensor to support sequential fuel injection and VVT‑i timing control. Relevant Toyota DTC references include P0340/P0341 (camshaft position circuit range/performance) and, on V6 models, P0345/P0349 for the opposite bank. So yes, it’s relevant and very much used on this model.

For a 2006 Camry, the camshaft-sensor helps the ECU know the exact position of the cam(s) so it can fire injectors precisely, manage spark timing, and control VVT‑i smoothly. When it’s healthy, cold starts are clean, idle is stable, and the engine pulls strongly through the revs. If it’s on the way out, owners may see a Check Engine light, hard starting, rough idle, misfires, poor fuel economy, or the engine dropping into a limp mode.

There’s no scheduled replacement interval for the camshaft-sensor—it’s a “replace on condition” part. During regular servicing, a quick visual check does the trick: look for oil intrusion at the sensor connector, brittle wiring, or loose retainers. If faults appear, scan for codes and check live data to confirm cam/crank correlation before condemning the sensor, because wiring faults or timing issues can mimic a bad sensor.

Replacement on the 2AZ‑FE is straightforward, with the sensor mounted at the cylinder head near the cam gear. On the 3MZ‑FE V6, there are two sensors—one per bank—so correct bank identification matters. Typical DIY steps:

• Disconnect the battery and unplug the sensor connector.
• Remove the retaining bolt, twist the old sensor gently, and pull it out.
• Lightly oil the new O‑ring, seat the new sensor, and tighten the bolt to factory spec.
• Reconnect, clear codes, and confirm stable cam/crank signals and smooth running.

Quality matters here—choose a genuine or reputable-brand sensor that meets Toyota specs. If a new sensor doesn’t fix a camshaft-sensor code, recheck the loom, ground and 5V supply, and consider mechanical timing or a sticky VVT‑i oil control valve. A fresh engine oil and filter service can also help VVT‑i responsiveness on these Camrys.

• Where is the camshaft-sensor on a 2006 Camry?
  On the 2.4L 2AZ‑FE, it’s mounted at the cylinder head near the timing end, accessible from the top. On the 3.3L 3MZ‑FE V6 there are two—one on each bank—mounted at the cylinder heads. Bank identification is important when diagnosing codes.
• What are common signs a camshaft-sensor is failing?
  Check Engine light with codes like P0340/P0341, hard starts, rough idle, hesitation, and poorer fuel use. Sometimes the car may crank a long time or fall into reduced power. Always verify wiring and timing before replacing.
• Should it be replaced as routine maintenance?
  No fixed interval. It’s replaced only if faulty. As part of servicing, inspect for oil leaks at the connector, damaged wiring, and ensure clean, tight connections. Use quality parts and proper torque when replacement is needed.