ELECTRICAL COMPONENTS
- 334 -
4.Radiator fan motor
• Disconnect the radiator fan motor coupler.
• Connect the battery (12 V) as shown.
Battery (+) lead
Blue terminal ①
Battery (–) lead
Black terminal ②
• Check the operation of the radiator fan motor.
5.Thermo switch 3
• Remove the thermo switch 3 from the radiator.
• Connect the pocket tester (Ω × 1) to the thermo
switch 3 ①.
• Immerse the thermo switch 3 in coolant ②.
• Check the thermo switch 3 for continuity.
While heating the coolant use a thermometer
③ to record the temperatures.
□
A
The thermo switch 3 circuit is closed.
□
B
The thermo switch 3 circuit is open.
Test
step
Coolant
temperature
Continuity
1
Less than 75±3 °C
(167 ± 5.4 °F)
No
2
More than 75 ± 3 °C
(167 ± 5.4 °F)
Yes
3
More than 68 °C
(154.4 °F)
Yes
4
Less than 68 °C
(154.4 °F)
No
Test steps 1 & 2: Heating phase
Test steps 3 & 4: Cooling phase
DOES NOT TURN
Replace the radiator fan motor.
To Next Page
Loading...
