Introduction

System Operation







Functions:
- Blower control
- Temperature control
- Recirculated air/fresh air mode
- Air conditioner mode
- Defroster function
- Air distribution
- Rear window defogger

NOTE: If the IHKS control module is replaced, it must be recoded.

Air Distribution







The air flow is adjusted by a 360° potentiometer. The flaps are controlled by 3 stepper motors (bus) that operate the defroster, face vent and footwell flaps. Flap control is dependent on the position of the air distribution knob as well as the position of the temperature knob.

Different characteristic curves are used for the maximum warm setting and the maximum cold setting.

If the temperature control knob is anywhere between these two settings, the new flap position is set.