Ignition & misfire · Powertrain · generic (SAE-defined)
P0365: Camshaft Position Sensor "B" Circuit (Bank 1)
P0365 means the engine computer detected a circuit problem with camshaft position sensor "B" on bank 1, often the exhaust camshaft sensor on dual-overhead-cam engines.
Standard title per SAE J2012 / ISO 15031-6 · Updated 2026-11-07 · By CarWhere Research
How P0365 sets
On engines with separate intake and exhaust camshaft sensors, the powertrain control module (PCM) monitors sensor "B" on bank 1 for a valid signal. P0365 sets when the signal is missing or electrically out of range. Whether "B" is the intake or exhaust camshaft depends on the manufacturer.
Common causes of P0365
Roughly most likely first; the actual cause depends on the vehicle and needs testing to confirm.
- Failed camshaft position sensor "B"
- Damaged or corroded wiring or connector
- Oil intrusion into the connector
- Damaged camshaft tone wheel
- Timing component problems on bank 1
P0365 symptoms
- Check engine light on
- Hard starting
- Rough idle or stalling
- Reduced power
How P0365 is diagnosed
- Check freeze frame data and related cam/crank correlation codes such as P0017.
- Confirm which sensor is "B" in service information.
- Inspect the connector and wiring for oil, corrosion, or damage.
- Test reference, ground, and signal circuits.
- Capture camshaft and crankshaft signals on an oscilloscope if wiring tests good.
Typical fixes for P0365
- Replace camshaft position sensor "B"
- Repair wiring or connector damage
- Repair oil leaks affecting the connector
- Repair timing components if needed
Replace parts only after testing confirms the cause — a code names the circuit or condition that failed a check, not necessarily the faulty part. We don’t publish per-repair prices; for what households actually spend on upkeep, see car repair costs.
Manufacturer notes
Definitions of camshaft sensor "B" can vary by manufacturer; check factory service information.
Related codes & warning lights
P0365 FAQ
What does code P0365 mean?
P0365 means the engine computer detected a circuit problem with camshaft position sensor "B" on bank 1, often the exhaust camshaft sensor on dual-overhead-cam engines. The standard definition is "Camshaft Position Sensor "B" Circuit (Bank 1)."
Can I drive with a P0365 code?
Usually yes for short distances, though starting, idle quality, and power can suffer. Have it repaired soon, especially if variable valve timing codes appear.
Is sensor B the exhaust camshaft sensor?
On many engines it is, but not all. Check service information to confirm which camshaft sensor "B" refers to on the vehicle.
Can P0365 affect variable valve timing?
Yes. Without a reliable camshaft signal, the computer may disable variable valve timing control, reducing power and efficiency.
Keep researching
Engine guides by brand (known issues, specs)
More ignition & misfire codes
Sources
- SAE J2012 — Diagnostic Trouble Code Definitions (standard code titles)
- ISO 15031-6 — Road vehicles: communication between vehicle and external equipment for emissions-related diagnostics, Part 6: Diagnostic trouble code definitions
- U.S. EPA — Vehicle Emissions Inspection and Maintenance (I/M) programs
- U.S. EPA, 40 CFR 86.1806-17 — Federal onboard diagnostics requirements for light-duty vehicles
General information written by CarWhere Research, not a diagnosis of your vehicle. Manufacturers can add their own sub-definitions and test conditions; confirm with the factory service information for your year, make and model. Before paying for a repair, check NHTSA for open recalls and your warranty booklet: federal law requires an emissions warranty on major emission-control parts such as the catalytic converter and engine computer.