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Home >> Toyota >> 2013 >> Matrix Base, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Control System (2AZ-FE) (Diagnostic Codes (P0010-P0456))) >> SFI System >> DTC P0102: Mass or Volume Air Flow Circuit Low Input; DTC P0103: Mass or Volume Air Flow Circuit High Input >> Monitor Description
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Monitor Description

WARNING: This page is about a different variant/trim than selected.

If there is a defect in the mass air flow 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 mass air flow meter circuit and stores a DTC.

Example:

When the sensor output voltage remains less than 0.2 V, or more than 4.9 V, for more than 3 seconds, the ECM stores a DTC.