Where is the Intake Air Temperature Sensor on a 2005 Toyota Matrix?
The Air Intake Temperature Sensor for this year and model Toyota Matrix is actually integrated (combined) with the Mass Air Flow Sensor. Both make up a single unit that is located just past the air intake receiver (the box where the air filter element is kept) if you follow the path of air flow. It appears as a shallow, flat, black box and has a terminal connector with five terminals. Attached to it, through a five prong flat plug, are five wires. Looking into the sensor, they are numbered from right to left 1-5. Terminal four and five are the important ones because they control all functions of the Air Intake Temperature Sensor. Each wire used in this multifunction plug has a different function and therefore a different color also. The Air Intake Temperature Sensor wires in terminal four and five should be yellow/black stripe and brown, respectively.