Normal Operation
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The primary channel consists of the RF and LR hydraulic circuits, and the secondary brake channel consists of the LF and RR hydraulic circuits. Pressure imbalances between the primary or secondary hydraulic pressure could be caused by air in the lines or fluid leaks in the brake fluid system.
- C1029:00 (ABS Primary Circuit Pressure Lower Than Secondary: No Sub type Information) - this DTC sets if the ABS module detects that the pressure in the primary circuit is less than in the secondary circuit.
- C102B:00 (ABS Secondary Circuit Pressure Lower Than Primary: No Sub Type Information) - this DTC sets if the ABS module detects that the pressure in the secondary circuit is less than in the primary circuit.
This pinpoint test is intended to diagnose the following:
- Air in brake fluid system
- Master Cylinder
- Hydraulic Control Unit.