Camshaft position sensor B is the exhaust camshaft sensor (bank 1 = side with cylinder 1), usually a Hall sensor on the exhaust cam phaser. P0365 means no or too few exhaust cam pulses arrive while the crankshaft turns in sync. GM sets it after 4 s of cranking or 5.5 s without a cam pulse, or fewer than 4 pulses in 3 s running, 8 of 10 samples, after two trips; on GM's 3.6-litre V6 (Saab 9-4X) also with no pulse in 800 of 1,000 engine cycles. Ford checks the ratio of crank to cam events from 200 rpm, detected within 5 s, and collects all electrical faults here. The exhaust phaser then goes to its park position; the engine keeps running but cranks longer and loses some power. FCA advises saving the cam/crank synchronisation data before replacing the sensor, as the fault is often elsewhere.
High severity. Can I keep driving?Avoid driving: the engine can stall while moving. If the timing is off, continuing can cause serious damage.
Bank 1 is the side of the engine with cylinder 1. Inline engines only have this bank.
Symptoms
- Check engine light on
- Longer cranking before the engine starts
- Loss of power or rough idle (exhaust cam timing in its base position)
- Higher fuel consumption
Most likely causes
- Exhaust camshaft position sensor faulty
- Connector or wiring open or corroded, 5 V reference missing
- Oil in the connector from a leaking sensor O-ring
- Tone wheel on the exhaust phaser damaged or loose
- Engine module (5 V supply)
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: easy
- It can trigger limp mode.
- It affects emissions.
What each character of P0365 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- 3: Ignition and misfires
- 65: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0365?
Avoid driving: the engine can stall while moving. If the timing is off, continuing can cause serious damage.
What causes code P0365?
The most common causes are: exhaust camshaft position sensor faulty; connector or wiring open or corroded, 5 V reference missing; oil in the connector from a leaking sensor O-ring.
Related codes
- P0366Camshaft Position Sensor B Circuit Range/Performance Bank 1
- P0367Camshaft Position Sensor B Circuit Low Bank 1
- P0368Camshaft Position Sensor B Circuit High Bank 1
- P0369Camshaft Position Sensor B Circuit Intermittent Bank 1
- P0390Camshaft Position Sensor B Circuit Bank 2
- P0340Camshaft Position Sensor A Circuit Bank 1 or Single Sensor
Sources
- gsi.ext.gm.com: 18OBDG03A Engine Diagnostics
- saabwisonline.com: dtc p0340 p0345 p0365 or p0390 lf1 lfw
- fordservicecontent.com: OBD Operations Summary Gasoline 2020 2023
- newtonnet.co.uk: fordobd2012
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.