What does error code P1110 mean on 2001 Nissan Sentra?

Error code P1110 on a 2001 Nissan Sentra indicates an issue with the intake air temperature (IAT) sensor circuit. This code typically points to a malfunction in the sensor itself, its wiring, or the engine control unit (ECU) that is interpreting the sensor's data. It's advisable to inspect the IAT sensor and its connections for any damage or corrosion, and to check for any related trouble codes that may provide further insight into the issue.