Possible Causes
- The powertrain control module has determined failures where some circuit quantity, reported via serial data, is below a specified range
- Mass air flow sensor circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Control Module Signal Name
- Circuit reference Signal (Flow) I_F_AMS
- Circuit reference Ground G_R_AMS
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Manifold absolute pressure and temperature sensor failure