Parts for your 2017 Honda Odyssey-Camshaft sensor

2017 Honda Odyssey camshaft sensor — purpose, servicing and replacement

Technical sources confirm the 2017 Honda Odyssey does use camshaft position sensors. Honda’s Service Information for the 2017 Odyssey (J35Y6 PGM‑FI, CMP Sensor A/B procedures), the Honda genuine parts catalogue (listing “Sensor, Camshaft Position” typically p/n 37510‑R70‑A01/A02, two required), and professional repair databases that document DTCs P0340/P0341 (CMP “A”) and P0365/P0366 (CMP “B”) all show the vehicle is fitted with two camshaft position sensors, one per bank.

On this Odyssey, the camshaft sensor is the ECU’s eyes on cam timing. Paired with the crank sensor, it tells the engine computer exactly which cylinder is on the firing stroke so it can run true sequential fuel injection, control i‑VTEC/VTC cam phasing, coordinate cylinder deactivation (VCM), sharpen cold starts, and keep emissions tidy. When a sensor plays up, expect longer cranking, a rough idle, flat spots under load, poorer fuel economy, and a glowing check‑engine light.

They’re not a routine service item, but a couple of smart checks during servicing go a long way. Keep an eye on the connectors for oil contamination, brittle loom tape, or rubbed wiring—especially near the rear bank by the firewall where heat is highest. If scan data shows cam/crank correlation errors or codes like P0340/P0341/P0365/P0366, confirm good battery voltage and clean grounds before blaming the sensor. Using the correct grade of engine oil and timely changes also helps the VTC system behave, which reduces false cam timing faults.

Replacement is straightforward if needed. There are two sensors: Bank 2 (front/radiator side) is easy to reach, Bank 1 (rear/firewall side) is tighter under the cowl. Under the bonnet, disconnect the negative battery terminal, unplug the sensor, remove the single 10 mm hold‑down bolt, and twist the sensor out. Lightly oil the new O‑ring, seat it squarely, and tighten the bolt to about 10 N·m (7–8 lb‑ft). Reconnect, clear the codes, and perform an idle relearn with a scan tool or by warming the engine and letting it idle quietly. Stick with quality OEM‑spec parts—cheap copies can cause intermittent dramas that are hard to chase.

Typical signs it’s time to act include:

• Hard starting, misfire, or stalling at idle
• Check‑engine light with P0340/P0341/P0365/P0366
• Sluggish performance and higher fuel use

If the rear bank access looks a bit cramped for a driveway job, no worries—any competent workshop can swap it quickly with the right tools and scan gear.

FAQ: 2017 Honda Odyssey camshaft sensor

How many camshaft sensors does a 2017 Odyssey have and where are they?
It has two—one on each cylinder bank. Bank 2 (front, radiator side) sits at the end of the front cylinder head and is easy to spot. Bank 1 (rear, firewall side) is mounted similarly on the rear head but is more tucked away under the cowl area.

What fault codes point to a camshaft sensor issue on this model?
Common codes are P0340/P0341 for Camshaft Position Sensor “A” (Bank 1) and P0365/P0366 for Sensor “B” (Bank 2). These can be triggered by a failing sensor, damaged wiring, connector corrosion, low battery voltage, or timing/VCT issues, so it’s smart to test before replacing parts.

Do camshaft sensors need routine replacement?
No, they’re not a scheduled service item. They’re replaced if faulty. With clean oil, healthy wiring, and proper heat shielding intact, the originals often last well past 200,000 km. If replacement is needed, use an OEM‑spec sensor and renew the O‑ring.