Possible Causes
NOTE:
Monitor description.
Engine control module monitors the input frequency signal from the sensor and sets the DTC if there is electrical failure
- The engine control module has determined failures where some circuit quantity, reported via serial data, is above a specified range
- Mass air flow sensor connector is not correctly latched
- Power feed to mass air flow sensor, open circuit
- Mass air flow sensor circuit, short circuit to power
- Mass air flow sensor failure