October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Coolant Temperature Switch (Corolla FX)

Drain cooling system. Remove temperature switch from intake manifold. Cool switch to below 109°F (43°C).
Using ohmmeter, check that continuity exists between switch body and switch terminal. Heat switch to above 131°F (55°C) and note that no continuity exists. Replace switch if defective.