Aerostar AWD V6-183 3.0L (1991)
Brake Light Switch: Description and Operation
The Brake On Off (BOO) signal is sent by the brake switch when the brakes are APPLIED. The Engine Control Assembly (ECA) uses this signal to
modify the operation of the torque converter clutch (if equipped), A/C compressor (if equipped), and idle speed during periods of decel and idle with the
brakes APPLIED.