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volkswagen Workshop Repair Guides


Jetta L4-1781cc 1.8L SOHC (ACC) Can (1995)

Sensors and Switches > Sensors and Switches - Cooling System > Engine - Coolant Temperature Sensor/Switch > Coolant Temperature Sensor / Switch HVAC > Component Information > Diagrams > Page 539

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Coolant Temperature Sensor / Switch HVAC: Description and Operation

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A/C thermal (F163) switches A/C clutch (N25) off at high engine coolant temperature; OFF (switch open) above 119°C (246°F); ON (switch
closed) below 112°C (234°F) Third speed coolant fan control thermal switch (F165) only on vehicles with 3-speed coolant fan motor

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Fan Control thermal switch (F165) switches radiator coolant fan to 3rd speed as engine coolant temperature increases; 3rd speed ON (switch
closed) above 112°C (234°F); OFF (switch open) below 108°C (226°F)

Sensors and Switches > Sensors and Switches - Cooling System > Engine - Coolant Temperature Sensor/Switch > Coolant Temperature Sensor / Switch HVAC > Component Information > Diagrams > Page 539

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