Hisun HS200UTV, Service Manual

Page: 273 / 312

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ELECTRICAL COMPONENTS
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5. If the coolant temperature warning light does not come on when the main switch to “ON”, or
if the coolant temperature warning light does not come on when the temperature is high
(more than 117 ~ 123 °C (242.6 ~ 253.4 °F):
(1) . Connection reliability
Check whether the wire connected to the
sensor is strong
CONTINUITY
(2). Thermo switch 1
• Remove the thermo switch 1 from the
cylinder head.
• Connect the pocket tester ( Ω × 1) to the
thermo switch 1
①
.
• Immerse the thermo switch 1 in coolant
②
.
• Check the thermo switch 1 for continuity.
While heating the coolant use a thermometer
③
to record the temperatures.
□
A
The thermo switch 1 circuit is open and the
coolant temperature warning light is off.
□
B
The thermo switch 1 circuit is closed and
the coolant temperature warning light is on.
Test
step Coolant
temperature
Continuity
1
Less than 120 ± 3 °C
(248 ± 5.4 °F)
No
2
More than 120 ± 3 °C
(248 ± 5.4 °F)
Yes
3
More than 113 °C
(235.4 °F)
Yes
4
Less than 113 °C
(235.4 °F)
No
NO CONTINUITY
Repair joint connector
ELECTRICAL COMPONENTS
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Test steps 1 & 2: Heating phase
Test steps 3 & 4: Cooling phase
WARNING
：
Handle the thermo switch 1 with special
care.
Never subject it to a strong shock or allow
it to be dropped. Should it be dropped, it
must be replaced.
COOLING SYSTEM
CIRCUIT DIAGRAM
（
See 296 page
）
BAD CONDITION
Replace the thermo switch 1