DTC P0102, DTC P0103, DTC P1100 & DTC P1101: Condition

WARNING: This page is about a different car, the 2003 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0102 indicates Mass Airflow/Intake Air Temperature (MAF/IAT) signal is less then 0.23 volt during normal engine operation or KOER self-test.
DTC P0103 indicates MAF/IAT signal went to more than 4.60 volts sometime during normal engine operation or KOER self-test.
DTC P1100 indicates MAF/IAT signal went to less then 0.23 volt during KOEO self-test or more than 4.6 volts during the last 40 warm-up cycles.
DTC P1101 indicates MAF/IAT signal was more than 0.27 volt during KOEO self-test or signal is not between 0.46-2.44 volts during KOER self-test.

MAF/IAT sensor measures amount of air entering engine. Sensor outputs an analog voltage signal to PCM. PCM uses signal to calculate required fuel injector pulse width. Input is also used to determine transaxle electronic pressure control, shift and torque converter clutch control.