Toyota
Toyota Land Cruiser
 Service Manual
Air conditioning Rear cooling unit
Inspection

1. INSPECT BLOWER MOTOR OPERATION

Connect the battery positive (+) lead to terminal 1 and battery

Connect the battery positive (+) lead to terminal 1 and battery negative (-) lead to terminal 2, then check that the motor rotates smoothly.

If the motor rotates smoothly, check the wire harness.

Otherwise, replace the blower motor.

2. INSPECT THERMISTOR RESISTANCE

(a) Place the thermistor in cold water.

(a) Place the thermistor in cold water.

(b) Measure resistance of the thermistor as the water temperature increases.

(c) Compare the readings with the chart.

(c) Compare the readings with the chart.

If the values meet the specifications, check the wire harness.

Otherwise, replace the thermistor.

3. INSPECT MAGNETIC VALVE OPERATION

Check the air passage through the valve, with and without the

Check the air passage through the valve, with and without the battery positive voltage applied, between terminals as shown in the chart.

Otherwise replace the magnetic valve with the expansion valve.

Otherwise replace the magnetic valve with the expansion valve.

If operation is as specified, check the wire harness.

4. INSPECT EVAPORATOR

(a) Check the evaporator fins for blockage.

If the fins are clogged, remove them with compressed air.

NOTICE: Never use water to clean the evaporator.

(b) Check the fitting for cracks or scratches.

If necessary, repair or replace.

INSTALLATION

Installation is in the reverse of removal (AC-32 ).

    More about Rear cooling unit:

    Disassembly

    Inspection

    On-vehicle inspection

    Removal

    Toyota Land Cruiser Service Manual / Air conditioning / Rear cooling unit / Inspection

    Toyota Land Cruiser Service Manual

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