Toyota Land Cruiser

 Service Manual

Air conditioning
Power transistor (for Rear Cooler)

INSPECTION

1. REMOVE REAR DOOR SCUFF PLATE RH

2. REMOVE REAR FLOOR MAT SUPPORT PLATE

3. REMOVE QUARTER TRIM PANEL RH

4. REMOVE POWER TRANSISTOR

(a) Disconnect the connector.

(b) Remove the 2 screws and the power transistor.

5. INSPECT POWER TRANSISTOR OPERATION

(a) Connect the positive (+) lead to terminal 1 through a 12 V - 3.4 W test bulb and negative (-) lead to terminal 2.

(b) Check the test bulb comes on when another positive (+) lead is connected to terminal 4 through a 12 V - 3.4 W test bulb.

If operation is not as specified, replace the power transistor

6. INSPECT POWER TRANSISTOR RESISTANCE

Measure resistance between terminals 3 and 4.

Standard resistance: 2.0 - 2.4 kW

If resistance is not as specified, replace the power transistor.

7. INSTALL POWER TRANSISTOR

(a) Install the power transistor with 2 screws.

(b) Connect the connector.

8. INSTALL QUARTER TRIM PANEL RH

9. INSTALL REAR FLOOR MAT SUPPORT PLATE

10. INSTALL REAR DOOR SCUFF PLATE RH

Air conditioning control assembly

Air conditioning amplifier (for Rear A/C)

Air conditioning system

Air inlet temperature sensor

Air mix servomotor (for Front A/C)

Air outlet servomotor

Ambient temperature sensor

Blower unit

Blower motor control relay

Compressor and magnetic clutch

Condenser

Drive belt

Front A/C blower motor

Front A/C evaporator

Front cooling unit

Front heater unit

Heater main relay

Magnetic clutch relay

Manifold gauge set

Power transistor (for Rear Heater)

Power transistor (for Rear Cooler)

Pressure switch

Rear A/C control assembly

Rear cooling unit

Refrigerant line

Rear heater relay

Rear heater unit

Room temperature sensor (for Front A/C)

Solar sensor