CO/Cooling System — Electric Cooling Fan (2JZ–GTE) On–Vehicle Inspection, page 25

EG–353
ENGINE – COOLING SYSTEM

Below 88°C
Stop
P19046

Below 88°C
Rotate
ECT Switch
Connector
Disconnect
P11775

Above 97°C
Thermometer
Rotate
P19047

ELECTRIC COOLING FAN (2JZ–GTE)
On–Vehicle Inspection

1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 88°C (190°F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and ECT switch, and check for a separated connector or severed wire between the No.1 radiator fan relay and ECT switch.
(c) Disconnect the ECT switch connector.
(d) Check that the cooling fan rotates.
If not, check the No.1 radiator relay, No.2 radiator fan relay, cooling fan, fuses, and check for short circuit between the No.1 radiator fan relay and ECT switch.
(e) Reconnect the ECT switch connector.

2. CHECK COOLING FAN OPERATION WITH HIGH TEMPERATURE (Above 97°C (207°F))
(a) Start the engine, and raise coolant temperature to above 97°C (207°F).
(b) Check that the cooling fan rotates.
If not, replace the ECT switch.