DTC P0103: Mass Airflow Sensor Circuit, High Input: Condition
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 when PCM detect input voltage from Mass Airflow (MAF) sensor is more than 4.9 volts. This is a continuous monitor. MIL is illuminated when PCM detects malfunction during first drive cycle. Possible causes are:
- MAF sensor malfunction.
- Poor connection.
- Short to power between PCM and MAF sensor.