Normal Operation
WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
The operating voltage required for ABS module, hydraulic pump and isolation valve operation is in a range between 10 and 16 volts.
Fused battery voltage is supplied to the ABS module by battery junction box (BJB) fuse 9 (40A) along circuit SBB09 (RD) and by BJB fuse 12 (20A) along circuit SBB12 (GN/RD). Fused ignition voltage is supplied to the ABS module by BJB fuse 38 (10A) along circuit CBB38 (GY/BU). Ground is provided along circuit GD120 (BK/GN).
This pinpoint test is intended to diagnose the following:
- Base brake system
- Hydraulic control unit (HCU)