
1. Start the engine.
2. Set the mode to the desired position. For improving the effectiveness of heating and cooling;
- Heating:

- Cooling:

3. Set the temperature control to the desired position.
4. Set the air intake control to the outside (fresh) air position (if equipped).
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system (if equipped) on.
1. Fan speed control knob 2. Front windshield defroster button 3. Rear window defroster button 4. Air conditioning button 5. Air intake control button 6.
The mode selection button controls the direction of the air flow through the ventilation system. Air can be directed to the floor, dashboard outlets, or windshield.
Repair procedures Inspection • Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line. Apply pressure on the tin foil with hand and move the tin foil along the grid line to check for open circ
Schematic diagrams Connector and Terminal Function Pin Function Connector A Connector B 1 Driver heater ground (-) Driver blower speed (+) 2 Passenger heater ground (-) - 3