Normal Operation
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The brake pressure switch provides an additional speed control deactivation if the BPP switch fails. When the brake pedal is pressed, 1700 kPa (246 psi) of brake fluid pressure in the brake master cylinder opens the brake pressure switch, removing B+ voltage to the speed control servo electric clutch.
Possible Causes
- circuit 10 (LG) open
- circuit 307 (BK/YE) open, short to power
- ABS module
- brake pressure switch
- speed control deactivator switch