Contents: SP17 System ↧ Control Panel ↧ Pressure sensor ↧ Compressor cut-off at wide open… ↧ High RPM Shutdown ↧ Tightening torques for threaded… ↧
SP17 System
See in section 7B, "Manually Controlled Heating, Ventilating, and Air Conditioning System" general information on the following topics:
- System components - functioning.
- Air conditioning system SP17.
Control Panel
The air conditioning system is controlled by switches on the control panel. The console-mounted heating and ventilation control system contains the following controls and indicators:
Temperature control keys
1. To increase the temperature of the air entering the car, press the top button with the red arrow up.
2. To lower the temperature of the air entering the car, press the lower key with the blue down arrow.
3. The air mixing valve is controlled by an electric drive.
4. The temperature is controlled by mixing the air passing through the heater's heat exchanger with the air bypassing the heat exchanger.
Each press of the key changes the set temperature in 0.5°C (1°F) steps. This is shown on the temperature indicator of the function display.
Functional display
This is a liquid crystal display that shows the status of the selected control parameter. The indicator shows (from left to right) the following parameters:
1. Set temperature - shows the temperature set by the temperature controller.
2. Automatic control status - shows the mode in which the system is operating (automatic or manual).
3. Glass heating icon - shows manual activation of the full glass heating mode.
4. Mode - a mode enabled by the system in automatic mode (or by the driver in manual mode), displayed by illuminated arrows showing the direction of air distribution.
5. Air Conditioner - The snowflake icon shows whether the air conditioner is on or off.
6. Fan Speed - Shows the fan speed with illuminated bars, starting with one at the lowest speed and adding segments in sequence up to the fifth at the highest speed.
Eight additional keys
1. Full heating of the windows - electric drives of the flaps direct all the air to the windshield and outlet openings on the windows for the fastest removal of frost from the windows.
2. Air supply - switching between fresh air supply (initial state) and air recirculation. The air flow arrows show the mode that is on.
3. Automatic mode switch - the set temperature is maintained automatically. In this mode, the automatic temperature control system (FATC) controls the following elements:
- Electric drive of the air mixing damper.
- Electric drive of the mode flap.
- Electric fan speed.
- Electric drive of the intake air damper.
- Turning the air conditioner on and off.
4. Main switch - turns off the automatic air conditioning and ventilation system.
5. Mode switch - allows you to manually set the direction of the air flow.
- The selected mode is displayed on the function display.
- Each time you press the mode switch key, the following function is displayed.
6. Air conditioner switch - allows you to manually turn on and control the air conditioner.
7. Fan control switch - allows you to manually set one of five fan speeds.
8. Heated glass switch - turns on the heated rear window and outside rearview mirrors if the vehicle is equipped with heated mirrors.
Pressure sensor
The pressure sensor functions as a high and low pressure cut-off relay together with a fan intermittent relay. The pressure sensor is located in the high-pressure liquid refrigerant line near the right front shock absorber strut, between the shock absorber strut and the air filter. The signal from the pressure sensor goes to the engine control module (ECM), which controls the compressor operation depending on the pressure signal.
Compressor cut-off at wide open throttle (WOT)
When accelerating at full throttle, the throttle position sensor (TPS) sends a signal to the ECM, which controls the compressor clutch.
High RPM Shutdown
When the engine speed reaches the maximum limit, the ECM disengages the compressor clutch until the engine speed decreases.
Tightening torques for threaded connections
|
Application
|
Nm
|
lb-ft
|
lb-in
|
|
Air filter cover nut
|
4
|
-
|
35
|
|
Fastening nut on the outside air temperature sensor bracket
|
6
|
-
|
53
|
|
Electric Fan Resistor Screws
|
6
|
-
|
53
|
|
Control unit mounting screws
|
2,5
|
-
|
22
|
|
Expansion valve bolts
|
10
|
-
|
89
|
|
Heater Housing/Air Distributor Assembly Screws
|
8
|
-
|
71
|
|
Evaporator Liquid Tube Fastening Nuts
|
10
|
-
|
89
|
|
Suction hose fastening nuts
|
10
|
-
|
89
|