Del Sol Si VTEC L4-1590cc 1.6L DOHC (VTEC) MFI (1997)
Control Assembly: Description and Operation
The air delivery system directs the flow of air from the heater and air conditioning systems.
Mode Selection
Mode selection is controlled by the mode switches in the heater control panel and the mode control motor. When you select a specific mode,
voltage is applied through the dimming circuit to the LED, which comes ON, indicating the mode selected. Ground is provided to the mode
control motor through that mode switch. The motor then runs until the air control door reaches the proper position.
Fresh/Recirculation Selection
When you press the fresh/recirc button, a ground signal is sent from the heater control panel to the recirculation control motor. The motor then
runs until the recirculation door reaches the proper position. When the button is in the recirc position, battery voltage is also applied through the
dimming circuit to the recirculation LED, and the LED comes ON.