| Circuit Diagram |



Singal Waveform
Inspection 1. Turn ignition switch OFF. 2. Disconnect IATS connector. 3. Measure resistance between IATS terminals 3 and 4.
Inspection Operating Logic Test (Manual only) Inspect the PTC operation by confirmation logic as follows; 1. Entering (1) Set the Floor mode and maximum heating position. (2) Turn off the blower switch.
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the mode control actuator connector. 3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.