Engine

P0365 — Camshaft Position Sensor B Circuit, Bank 1

Severity: medium Drive with care, to a shop

What P0365 means

The engine control module compares the camshaft sensor B signal on bank 1 with the crankshaft sensor signal to determine engine phase and time spark and fuel correctly. P0365 sets when that signal is missing, erratic or does not match what the ECM expects. The cause can be the sensor, its wiring, or a mechanical timing problem.

Symptoms

  • Check Engine light on
  • Rough idle or misfires
  • Hard starting or no-start
  • Loss of power or hesitation
  • Reduced fuel economy
  • Rattle on startup

Possible causes

  1. Failed camshaft position sensor B
  2. Damaged wiring, corroded pins or a poor connector
  3. Stretched timing chain or belt, or jumped timing
  4. VVT solenoid or cam phaser fault
  5. Damaged camshaft reluctor wheel or target
  6. Rarely, ECM or software fault

How to diagnose

  1. Scan all codes and freeze frame data, noting any crankshaft or other cam codes
  2. Inspect the sensor connector and harness for oil, chafing, corrosion or broken wires
  3. Test sensor power, ground and signal wires with a multimeter
  4. Inspect the sensor and its reluctor wheel for damage or debris
  5. Compare cam and crank signals on a scope
  6. Check oil level and condition and VVT solenoid operation
  7. Evaluate timing chain or belt condition and timing marks, and check for chain stretch
  8. If all is good, check the ECM and for software updates

Common fixes

  • Replace camshaft position sensor B
  • Repair wiring or replace the connector
  • Replace the timing chain or belt, tensioners and guides, and set timing
  • Replace the VVT solenoid or cam phaser
  • Update or replace the ECM (rare)

P0365 on different brands

Ford · manuals
On Ford 2024-2025 gasoline engines, P0365:01 is documented as the exhaust cam position circuit, bank 1; it identifies the monitor condition detected, not a confirmed failed part.

Questions and answers

Can I drive with code P0365?

Only briefly and carefully to a shop, as the engine may misfire or stall. Avoid driving if you hear rattling or it struggles to start.

What most often causes P0365?

Most often a failed cam sensor or damaged wiring or connector. If those check out, look at timing components and the VVT system.

Will replacing the sensor fix it?

Not always. Check the wiring, oil and timing condition first, or the code may return.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.