P0103
DTC P0103 Mass Air Flow Circuit High VoltageDESCRIPTION
The Mass Air Flow (MAF) sensor is located near the air cleaner.
The sensor measures the mass of air passing through the air intake and generates a voltage signal. The Powertrain Control Module(PCM) receives the voltage generated by the sensor and uses the signal to set fuel injector base pulse width and ignition timing.
The resistance of the sensor decreases as mass air flow increases. Voltage and current flow is increased to maintain the film's temperature and resistivity.
Troubleshooting Guide:
Circuit Diagram:
Test Procedure Part 1:
Test Procedure Part 2:
