Inspection Of Cooling Fan Circuit - Toyota MR2 1988 Repair Manual

C0-18
COOLING SYSTEM - Electric Cooling Fan (Engine Compartment)
INSPECTION OF COOLING FAN CIRCUIT
Ignition Switch
Cooling Fan Warning Light
AMI
q_-----------------o2
L4;_ ________________________
-o
7
)-----------o
6
Vent Fan Relay
Cooling Fan Motor
Temperature Sensor
VENT FAN
20A
Engine Main
1
Relay
Fuse
L-------------------------o5
1 Battery
~
l
Terminals
1 - Body ground
1 - 3
4-5
1 - 2
1 -6
1 -6
ENG 10A
~~~--~~~~-----------------------~3
,.----------0
1
Cooling Fan Computer
G-9-2 C0021 0
Condition Result
--
Coninuty
Ignition S/W ON There is battery voltage_
less than 54°C (129°F)
(Temp_ sensor)
More than 600
!l
(Sensor resistance)
More than 70°C (158°F) less than 415
!l
The cooling fan warning light lights
Ignition S/W ON
Fan motor runs and warning light lights
Ignition S/W ON and
Fan motor stops
Continuity 7-1