Switch Performance Check

WARNING: This page is about a different car, the 1992 Mercury Tracer, 1992 Ford Probe, and 1992 Ford Escort. However, it is still accessible from the selected car via links, so may be relevant.

Switch must be checked in ON and OFF positions. Switch should function as follows:

BOO Switch is closed when brake pedal is applied.
FAN Switch is closed when coolant temperature switch is grounded.
DEF Switch is closed when rear defroster is on.
HLDT Switch is closed when headlights is on.
VST Switch is closed when engine is cranking.