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Home >> Toyota >> 2014 >> Prius Four >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 53 (Engine Control System (Diagnostic Code (P0010 - P0300)) - PRIUS (Plug-In)) >> SFI System >> DTC P0102: Mass or Volume Air Flow Circuit Low Input; DTC P0103: Mass or Volume Air Flow Circuit High Input [10/2013 - ] >> Monitor Description
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Monitor Description

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If there is a defect or an open or short circuit in the mass air flow meter sub-assembly, the voltage level deviates from the normal operating range. The ECM interprets this deviation as a malfunction in the mass air flow meter sub-assembly circuit and stores a DTC.

Example:

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