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Home >> Toyota >> 2004 >> Matrix Base, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (SFI) - Diagnostics (1ZZ-FE) >> DTC P0100: Mass Or Volume Air Flow Circuit, 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

If there is a defect in the sensor or an open or short circuit, the voltage level will deviate outside the normal operating range. The ECM interprets this deviation as a defect in the MAF sensor and sets a DTC.

Example:

When the sensor voltage output is less than 0.2 V or more than 4.9 V and if either the condition continues for more than 3 seconds.