(TCM) from the engine control module (ECM) via the high speed side of the Controller area network (CAN).
mass air flow (MAF) sensor consist of a hot film comprised of four resistors. The hot film is cooled by the air flow to the engine.
flow (high mass) gives high voltage. No air flow gives a reading of approximately 1 V.
The mass air flow (MAF) sensor is positioned between the air cleaner (ACL) housing and the intake manifold.
The shape of the mass air flow (MAF) sensor is slightly different on naturally aspirated engines and also contains an air temperature sensor.
The engine control module (ECM) can diagnose the mass air flow (MAF) sensor. The signal can be read using VADIS/VIDA.