P0015Powertrain
Exhaust camshaft timing (bank 1) — over-retarded
Where to start
The exhaust camshaft sits later than commanded. Check the oil level and condition, and the actuator's filter screen — it clogs first. If the oil is long overdue, that is the sensible place to start.
A code is not a diagnosis. It says which check failed, not which part to replace. Clearing it without repair only means the car will report it again in a few trips.
How to put together a report a mechanic will actually read
We have a detailed piece on thisFault code P0016: camshaft and crankshaft out of sync
How the code is built
Letter — the systemPowertrain: engine and transmission
Common or the maker's ownGeneric code: the same on every car
Which part of the engineFuel and air metering, general
Number of the faultThe serial number inside that group — it does not say how serious the fault is
All codes in «Fuel and air metering, general»
How the app helps
CarScan reads this code from your car through an OBD-II adapter, shows whether it is active now or only stored, names the module that reported it, and puts it into a plain-text report for your mechanic.