Heater Mode

The purpose of the heater is to supply heat to the interior of the vehicle. The vehicle operator can determine the level of heat by turning the left temperature switch, located on the HVAC control module, to any setting. The temperature control can change the vehicle's air temperature regardless of the HVAC mode setting, heater or A/C. The vehicle passenger can adjust their temperature by toggling the right air temperature switch. Passenger temperatures can be offset 2°C (4°F) cooler or warmer than the drivers setting.

The HVAC control processor provides power to the left air temperature actuator through the off/run voltage circuit. Ground is provided by the low reference circuit and the HVAC control processor.