Brake Switch
WARNING: This page is about a different car, the 1996 Isuzu Trooper. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect brake switch connector. With brake pedal depressed, continuity should exist between switch terminals No. 2 and 3. SeeFig 1 . With brake pedal released, continuity should exist between switch terminals No. 1 and 4. Replace brake switch if it does not test as specified.