DTC P0101, DTC P0102 & DTC P0103: Notes

Code Definition

DTC P0101: Mass Airflow Sensor Circuit Malfunction
DTC P0102: Mass Or Volume Air Flow Circuit Low Voltage
DTC P0103: Mass Or Volume Air Flow Circuit High Voltage

NOTE: Before performing any diagnostic test, refer toWARNINGS, CAUTIONS and NOTES in DIAGNOSTIC TESTS .

NOTE: Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.