P0112 - Intake Air Temperature Sensor 1 Circuit Low
Intake Air Temperature is monitored to allow the ECM to accurately adjust fueling and emission control systems as the temperature directly affects the air density
Fault Code Explained
The ECM has detected that the sensor output is below it’s minimum operating parameter or is lower than expected for the current operating conditions.
If possible use a diagnostic computer to view live data readings for the sensor and compare to actual air temperature. Test sensor supply Voltage and output signal