Parts for your 2015 Honda Accord-Camshaft sensor

2015 Honda Accord Camshaft Position Sensor — What It Does and When to Replace It

Based on technical sources including the 2015 Honda Accord workshop manual (Honda Service Information), Honda OEM parts catalogues, and the vehicle’s factory DTC coverage (codes such as P0340/P0341 for camshaft position circuit/performance), the 2015 Honda Accord does use a camshaft position sensor (CMP). The 2.4‑litre four-cylinder typically runs a single CMP sensor on the intake cam, while the 3.5‑litre V6 uses sensors per bank. That makes the camshaft sensor directly relevant to this model’s engine management and timing control.

The CMP sensor’s job is to tell the ECU exactly where the camshaft is in its rotation. That intel is used to sync fuel injection and ignition timing, and to command variable valve timing (i-VTEC/VTC) with precision. When it’s healthy, cold starts are crisp, power delivery stays smooth, and fuel economy is on point. If it goes out of whack, the ECU loses phase reference, so it may revert to a backup strategy, light the MIL, and the car can feel flat or hesitate.

There’s no routine maintenance interval for the CMP sensor on a 2015 Accord, it’s a solid-state part designed to last. During regular servicing, it’s smart to:

• Visually check the sensor connector and wiring for oil intrusion, brittle insulation, or loose pins.
• Look for oil leaks from the cam cover area that could contaminate the sensor or plug.
• Scan for history or pending codes like P0340/P0341 even if the MIL’s off.

Replace the sensor if there are confirmed DTCs, poor running after warm-up, extended cranking, misfires tied to cam timing, or if live data shows erratic cam signal. Use a quality OEM or OE-equivalent part, pattern pieces with weak signal strength can cause ghost faults. On the 2.4L, access is straightforward at the intake cam end, on the V6, bank location dictates access. Disconnect the battery, unplug the connector, remove the retaining bolt, swap the sensor, lightly oil the O-ring, and refit. Tighten to the workshop manual spec and route the harness exactly as factory to avoid chafing.

After replacement, clear codes and perform a road test with a scan tool watching cam/crank correlation and VTC command vs. actual. If codes persist, inspect the reluctor (trigger) on the cam, check crank sensor inputs, and verify timing chain alignment per the Honda manual. Done right, a fresh CMP sensor restores clean starts, smooth idle, and consistent pull across the rev range — too easy.

Popular questions

How do I know if my 2015 Accord’s camshaft sensor is failing?
Typical signs include longer cranking, rough idle, hesitation on take-off, flat spots, and the check engine light with codes like P0340 or P0341. A scan tool showing unstable cam phase data or loss of sync during hot restarts is another giveaway. Always confirm wiring integrity before condemning the sensor.

Do I need to replace the camshaft sensor as preventative maintenance?
No. Honda doesn’t specify a preventative replacement interval for the CMP sensor. It’s replace-on-failure. As part of routine servicing, keep an eye on oil leaks around the cam cover, ensure the connector is clean and tight, and run a code/health check. Fit an OEM-grade sensor if replacement is needed.

Is there more than one camshaft sensor on a 2015 Accord?
It depends on the engine. The 2.4‑litre four usually uses a single intake cam sensor, while the 3.5‑litre V6 uses sensors by bank. Check the VIN and engine code, or refer to the Honda parts diagram to confirm the exact count and location for your car.