P0365 code meaning
Camshaft Position Sensor B Circuit Bank 1
Powertrain system Generic code P03xx codes Check engine light
What P0365 means
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.
P0365 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1 hours
- Clears after repairAfter a drive cycle
Symptoms of P0365
- 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
Common causes of P0365
- Most likelyExhaust camshaft position sensor faulty
- Most likelyConnector or wiring open or corroded, 5 V reference missing
- PossibleOil in the connector from a leaking sensor O-ring
- Less likelyTone wheel on the exhaust phaser damaged or loose
- Less likelyEngine module (5 V supply)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Camshaft position sensor exhaustCamshaft tone wheelSensor wiringEngine control module
What each part of P0365 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 3 | Area: ignition system or misfire. |
| 65 | The exact fault in that area. |
What to do next
- Note P0365 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0365
What does P0365 mean?
P0365 means "Camshaft Position Sensor B Circuit Bank 1". Camshaft position sensor B is the exhaust camshaft sensor (bank 1 = side with cylinder 1), usually a Hall sensor on the exhaust cam phaser. It is a generic code, so it means the same on every make.
Is it safe to drive with P0365?
Drive gently and only to a workshop. With P0365 the car can go into limp mode (reduced power) to protect itself.
Will P0365 fail an emissions test?
Yes, it can. P0365 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0365 to fix?
Difficulty: easy. A typical repair takes 0.3 to 1 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0365 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.