Parts for your 2005 Honda Odyssey-Camshaft sensor

2005 Honda Odyssey camshaft-sensor — what it does and how to look after it

Technical verification: the 2005 Honda Odyssey (J35A6 non‑VCM and J35A7 VCM V6) is fitted with camshaft position sensor(s). Honda’s 2005 Odyssey Service Manual (Engine Controls/PGM‑FI) and Honda parts catalogues list a CMP Sensor A — and on some variants a CMP Sensor B — mounted on the cylinder heads. Common OBD‑II references for this model include DTCs P0340/P0341 (Sensor A) and P0365/P0366 (Sensor B), confirming the ECU monitors a camshaft signal on this vehicle.

On this Odyssey, the camshaft-sensor feeds the engine ECU with the exact position of the cam(s) so it can time sequential fuel injection, sync ignition, and manage Honda’s Variable Valve Timing and Lift (VTEC/VTC). Working alongside the crank sensor, it helps the engine fire up quickly, run smoothly at idle, and keep emissions and fuel use in check — whether it’s the school run or a long haul across the Tasman’s favourite highways.

Because it’s an electronic Hall‑effect sensor living under the bonnet, heat, oil mist, and the odd splash can take a toll over time. Typical clues it’s on the way out include hard starting, intermittent stalling, rough idle, sluggish performance, or the MIL lighting up with those CMP‑related codes. A good first step is a visual once‑over of the connector and loom for brittle insulation or oil contamination, then a scan‑tool check of cam/crank sync and live signal stability.

There’s no set replacement interval in Honda’s maintenance schedule, it’s a replace‑on‑condition item. If it’s faulty, opt for a quality OEM‑equivalent sensor and a fresh O‑ring. Disconnect the battery, let the engine cool, and keep the mounting face clean. Lightly oil the new O‑ring, seat the sensor squarely, and tighten the retaining bolt to factory spec — don’t overdo it. Clear the codes and road‑test, no special programming or relearn is typically required on this model, but verify cam/crank sync in live data.

As part of regular servicing, it’s worth a quick check: ensure the harness isn’t chafing on brackets, confirm the connector seal is intact, and keep an eye out for oil leaks from nearby cam covers that could wick into the plug. Catching those small issues early helps the Odyssey’s V6 keep its easy, drama‑free manners.

• Common CMP fault codes on this model: P0340, P0341 (Sensor A), P0365, P0366 (Sensor B)
• Locations: typically on the cylinder head(s) near the cam gear — one at the rear bank (firewall side) and, on some variants, another on the front bank

Popular questions

Where is the camshaft-sensor on a 2005 Honda Odyssey?
It’s mounted on the cylinder head. Most 2005 models have a sensor at the rear bank (firewall side). Some variants also carry a second sensor on the front bank. Access is from the top with the engine cover off, a small retaining bolt holds the sensor to the head.

What fault codes point to a bad camshaft-sensor on this model?
Look for P0340 or P0341 for Camshaft Position Sensor A, and P0365 or P0366 for Sensor B. Intermittent versions of these codes often hint at wiring or connector issues, so check the loom and plug before condemning the sensor.

Does a new camshaft-sensor need programming on a 2005 Odyssey?
No special programming is usually required. After installation, clear the codes, start the engine, and verify cam/crank sync and stable idle in scan data. If a code immediately returns, recheck connector fitment, bolt torque, and the O‑ring seal.