E 350 V8-6.0L DSL Turbo (2007)
Brake Switch (Cruise Control): Description and Operation
Brake Pressure Applied (BPA) Switch
BRAKE PRESSURE APPLIED (BPA) SWITCH
Brake Pressure Applied (BPA) Switch
NOTE: The BPA switch is present on vehicles equipped with speed control.
All vehicles have a single BPA switch. A BPA switch provides a backup for the BPP switch. Normally, a brakes-applied signal from the BPP switch
disengages the speed control. If the BPP switch signal is lost, the BPA switch then supplies the brakes-applied signal to the speed control system. The
BPA switch signal is also used in the transmission strategy and the key on engine running (KOER) self-test.