DTC P0113: Intake Air Temperature Sensor Circuit, High Input: Conditions

WARNING: This page is about a different car, the 2002 Mazda Protege5 and 2002 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set if input voltage from Intake Air Temperature (IAT) is more than 4.8 volts. This is a continuous monitor. MIL is illuminated when PCM detects malfunction during first drive cycle. Possible causes are:

IAT sensor malfunction.
Open or short circuit between IAT sensor and PCM.
PCM malfunction.