P0112Powertrain
Intake air temperature circuit low input
Where to start
The intake air temperature sensor reports implausibly hot air. More often it is a short in the wiring or a corroded connector than the sensor itself. On many cars it is built into the airflow meter — then both are inspected together.
What to watch in live data
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 thisIntake air temp sensor: P0111, P0112, P0113 and fuel use
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
Number of the faultThe serial number inside that group — it does not say how serious the fault is
All codes in «Intake measuring sensors»
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.