Lexus RX300 (MCU15). Service manual - part 189

B04155

CO0IK–02

B04225

B04224

Ammeter

Battery

Ammeter

Battery

No.1

No.2

–

COOLING

ELECTRIC COOLING FAN

CO–25

LEXUS RX300   (RM785E)

ELECTRIC COOLING FAN

ON–VEHICLE INSPECTION

1.

CHECK COOLING FAN OPERATION WITH HIGH
TEMPERATURE (Above 98

°C (208°F))

(a)

Start the engine, and raise coolant temperature to above
98

°C (208°F).

(b)

Check that the cooling fan rotates.

If not, replace the No.1 water temperature switch.

2.

INSPECT COOLING FANS

(a)

Disconnect the cooling fan connector.

(b)

Connect battery and ammeter to the cooling fan connec-
tor.

(c)

Check that the cooling fan rotates smoothly, and check
the reading on the ammeter.
Standard amperage:  8.5 – 11.5 A at 20

°C (68°F)

(d)

Reconnect the cooling fan connector.

CO0IL–03

B04396

A/C Condenser

Radiator Side Air Seal

Radiator Lower Grille

Discharge Hose

Front Bumper
Energy Absorber

Front Bumper Cover

Engine Under Cover

Side Marker Light
Connector

Liquid Tube

x 5

CO–26

–

COOLING

ELECTRIC COOLING FAN

LEXUS RX300   (RM785E)

COMPONENTS

B04395

Radiator Assembly

Radiator Reservoir Hose

Upper Radiator Hose

A/T Oil Cooler Hose

No.2 Electric Cooling
Fan Connector

Upper Radiator Support

Lower Radiator Hose

No.1 Electric Cooling
Fan Connector

Lower Radiator Support

No.1 Water Temperature
Switch Connector

Drain Plug

Radiator Cap

z O–Ring

–

COOLING

ELECTRIC COOLING FAN

CO–27

LEXUS RX300   (RM785E)

B04247

Radiator

Electric 
Cooling Fan

x 6

B04246

Fan Shroud

No.2 Fan Motor

No.1 Fan

No.2 Fan

No.1 Fan Motor

CO–28

–

COOLING

ELECTRIC COOLING FAN

LEXUS RX300   (RM785E)