| Circuit Diagram |



Singal Waveform
Inspection 1. Turn ignition switch OFF. 2. Disconnect IATS connector. 3. Measure resistance between IATS terminals 3 and 4.
Component Location 1. Heater unit assembly Compoents 1. Mode control actuator 2. Heater core case 3. Center duct seal 4. PTC heater 5. Heater core assembly 6. Heater case [LH] 7.