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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 136 (Engine Control System Self Diagnostics - 4-Cylinder) >> Diagnostic Tests >> DTC P0110: Intake Air Temperature Sensor Circuit >> Circuit Description
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Circuit Description

WARNING: This page is about a different car, the 2003 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.

A 5 volt power source voltage in the ECM is applied to the intake air temperature sensor from terminal THA via a resistor R (resistor R and the intake air temperature sensor are connected in series). When the resistance value of the intake air temperature sensor changes in accordance with changes in the intake air temperature, the potential at terminal THA also changes. Based on this signal, the ECM increases the fuel injection volume to improve driveability during cold engine operation.

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