Main functions
Monitors engine coolant temperature.
Helps control radiator cooling fan operation (depending on the system).
Helps prevent engine overheating.
Sends temperature information to the vehicle's control system.
Supports proper engine temperature management.
Common signs of a faulty Honda temperature switch
Radiator fan does not come on.
Radiator fan runs continuously.
Engine temperature rises above normal.
Engine overheats, especially in traffic.
Cooling fan operates irregularly.