Laser FWD L4-1997cc 2.0L DOHC Turbo (1993)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Coolant Temperature Switch
Coolant Temperature Switch Circuit (A/C Only)
The Coolant Temperature Switch, located in the thermostat housing, is a contact type switch. It is normally in the closed position allowing current
flow. When the engine coolant temperature is 233 - 244° F (112 - 118° C) the switch will open cutting power to the ECM, and helping to prevent
engine overheating.
