6. Cooling System > Thermostat
Inspection
Thermosensor
Set a digital multimeter to read ohms of resistance ( )
Suspend the thermosensor in a pan of water over a burner and measure
the resistance through the sensor as the water heats up. Do not allow the
thermosensor or the thermometer to contact the sides of the pan.
Thermosensor resistance
Water Temperature Sensor
Inspect the WTS in a simlar manner as the thermosensor. Measure the
resistance between the WTS terminals and compare this to the
specifications.
WTS resistance
At 50 °C/122 °F
At 80 °C/176 °F
At 100 °C/212 °F
At 120 °C/248 °F
At -20 °C/-4 °F
At 40 °C/104 °F
At 100 °C/212 °F
6-35
K- XCT 300i
154 Ω
52 Ω
27 Ω
16 Ω
18.8 kΩ
1.136 kΩ
0.1553 kΩ