Monitor Description
WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
If there is a defect in the MAF meter or an open or short circuit, the voltage level deviates from the normal operating range. The ECM interprets this deviation as a malfunction in the MAF meter and stores a DTC.
Example:
When the sensor output voltage remains at less than 0.2 V, or more than 4.9 V for more than 3 seconds, the ECM stores a DTC.
If the malfunction is not repaired successfully, a DTC is set 3 seconds after the engine is next started.