P0368Camshaft Position Sensor B Circuit High 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. P0368 means the signal line stays high without edges. If the signal wire is open, the roughly 5 V the engine module applies to it simply remains; if the sensor's 5 V supply or ground is missing, the sensor never switches and the signal also stays high – and a short to positive has the same effect. A code-specific manufacturer description exists only from GM: on the Saab 9-4X 2.8 turbo V6 (LAU) the signal must stay high without pulses for more than 1 s, or 10 s cumulatively, and the code follows after two trips; GM lists exactly these causes. GM's other engines of 2014–2019 and Ford report such faults under P0365. The consequence is as for P0365: exhaust cam timing in its base position, longer cranking, some loss of power.
- 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)
- Likely causes
- LikelyConnector off or corroded, signal wire open
- Possible5 V reference or ground of the sensor open
- PossibleSensor faulty (output does not switch)
- RareSignal wire shorted to positive
- 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: €30 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.