Circuit Description

Intake Air Temperature (IAT) sensor is a thermistor built into MAF meter and is used to monitor temperature of air flowing through MAF meter. DTC is set when ECM detects an open or short in IAT sensor circuit. If DTC P0110 exists, ECM will operate in fail-safe mode in which intake air temperature is assumed to be 68°F (20°C). Possible causes are:

• IAT sensor circuit is open or shorted.
• Defective IAT sensor (built into MAF meter).
• Defective ECM.