Normal Operation
The operating voltage required to supply the anti-lock brake system (ABS) module, hydraulic pump and isolation valves is in a range between 10 and 16 volts.
Fused battery voltage is supplied to the ABS module from battery junction box (BJB) fuses 10 (20A) and 36 (40A), for early build Fusion/Milan, or 8 (40A), for all MKZ and late build Fusion/Milan, along circuits SBB10 (YE/RD) and SBB36 (GN/RD), for early build Fusion/Milan, or SBB08 (VT/RD), for all MKZ and late build Fusion/Milan, respectively. Fused ignition voltage is supplied to the ABS module from smart junction box (SJB) fuse 28 (10A) along CBP19 (BN/WH) and ground is provided along circuit GD123 (BK/GY).
Possible Causes
- Base brake system
- Hydraulic control unit (HCU)