Heating and air conditioning car Toyota Land Cruiser 70

Security measures
1. When working with refrigerant, safety regulations must be observed. A) Do not work with refrigerant indoors or near open flames. b) Always wear safety goggles. V) Be careful not to get refrigerant in your eyes or on...

Cooling system
Installation of the block of manometers 1. Close both taps on the gauge block. 2. Connect the charging hoses of the gauge block to the service ports on the compressor. Make sure the high and low pressure hoses are...

Compressor — check on the car, removal, check of work
Vehicle check 1. Checking the electromagnetic clutch. A) Check that there are no traces of oil on the pressure plate and rotor. b) Check for noise and grease leakage from the clutch bearings. V) Connect the positive...

Capacitor — check on the car, removal, installation
Vehicle check 1. Check for clogging and damage to the condenser plates. A) If the condenser is clogged, it should be flushed with water and dried with compressed air. Attention: do not damage the capacitor plates. b) If...

Receiver — check on the car, removal, installation
Vehicle check 1. Check the tightness of the service window, fusible plug and receiver connections. 2. If any problems are found, make the necessary repairs. Removing 1. Remove the refrigerant from the system. 2....

Front cooling block
Checking the expansion valve on a car 1. Install the gauge block. 2. Check the operation of the expansion valve. A) Start the engine and set the idle speed to high. Turn on the air conditioner. b) Check that the low...

Rear cooling unit
Removing 1. Disconnect the suction and liquid tubes. 2. Remove the cover. 3. Remove the rear cooling block. Installation in reverse order.

Temperature controller resistor
Vehicle check 1. Disconnect the negative cable from the battery. 2. Remove the center fascia 3. Disconnect the temperature controller resistor connector. 4. Check the resistance of the resistor. Measure the resistance...

Expansion valves
Vehicle check Front A/C Expansion Valve 1. Check the amount of refrigerant. 2. Install the gauge block. 3. Set the front air conditioner switch to "ON" (Included), and the fan switch to the position "HI" (High speed)....

Air conditioning control panel
Air conditioning control panel. 1 - blower speed control, 2 - temperature control lever, 3 - recirculation control lever, 4 - air flow control lever. Checking the fan switch Check for continuity between the switch...

Pressure switch
Vehicle check Engine 2L-T, 3L, 2L: 1. Check the refrigerant pressure. A) Connect a gauge block to the compressor service valves. b) The reading must be greater than 206 kPa at an ambient temperature above 0°C. When the...

Blower switches
Front heater blower switch Check for continuity between the fan switch connector terminals. Replace the switch if the conductivity differs from the table. Rear heater blower switch Check for continuity between the fan...

Supercharger electric motors
Checking the blower motors Connect the positive wire from the battery to terminal 1 and the negative wire to terminal 2 of the front heater blower motor. Check the smoothness of the motor. Repeat the procedure for the...

Supercharger resistors
Front supercharger resistor check Check for continuous continuity between all resistor connector terminals. If there is no continuity, then replace the resistor. Checking the rear heater blower resistor 1. Check for...

Heater relay
Checking the front heater relay 1. Check for continuous continuity between terminals 1 and 3. 2. Check for continuous continuity between terminals 2 and 4 of the relay. 3. Check for continuity between relay terminals 4...

Sensor switch for coolant temperature
Removing Remove the sensor as shown in the figure. Examination Check that the conductivity between the sensor terminals changes according to the graph given (Conductivity should be above 108°C and absent below 103°C).

Vacuum valve
Examination 1. Disconnect hoses and connector from valve. 2. Checking the connections of the channels inside the vacuum valve. A) Connect the battery to the connector terminals as shown in the figure. b) Supply air to...

A/C Amplifier
1. Test conditions: A) "Ignition" included. b) Temperature control knob: in position "MAX COOL" (maximum cooling). V) Fan switch in position "HI" (high speed). 2. Disconnect the amplifier and check the connector on the...