Air conditioning system of Toyota 4 Runner/ Hilux/ Surt 1996
1. Main relay; 2. Heater radiator; 3. Front heater main relay; 4. Air conditioning; 5. Evaporator; 6. Expansion valve; 7. Fan resistor; 8. Thermistor; 9. Amplifier; 10. Rear heater; 11. Radiator; 12. Electric motor; 13. Main relay; 14. Resistor; 15. Rear heater control panel; 16. Switch; 17. Capacitor; 18. Moisture separator; 19. Compressor; 20. Pressure relay; 21. Heater valve; 22. Air conditioning control panel (switch, mode controller, defrost mode switch)
Warning! The air conditioning system line is under high pressure. Do not disconnect any hoses or remove any air conditioning system units until the refrigerant has been completely removed.
Attention! Refrigerant removal must be performed at a car service center.
Maintenance of the air conditioning system:
[The article was copied from the portal: ToyotaMAN]
- checking the condition and tension of the compressor belt;
- checking the condition of hoses and tubes (do not disconnect the main line!);
- cleaning the interfin spaces of the condenser;
- checking the refrigerant charge in the system.
The air conditioner should be turned on monthly for about 10 minutes.
The most common reason for poor air conditioning performance is insufficient refrigerant charge. If you notice a noticeable increase in air temperature from the air conditioner, check the completeness of the refrigerant charge.