P0365Camshaft Position Sensor B Circuit Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- 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.
- What you may notice
- 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
- Likely causes
- LikelyExhaust camshaft position sensor faulty
- LikelyConnector or wiring open or corroded, 5 V reference missing
- PossibleOil in the connector from a leaking sensor O-ring
- RareTone wheel on the exhaust phaser damaged or loose
- RareEngine module (5 V supply)
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €60 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.