Normal Operation
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The ABS module uses internal pressure sensors to determine proper operation by monitoring internal Hydraulic Control Unit (HCU) hydraulic pressures. These DTCs set if the brake pressure sensor signals do not match. This fault could set by either an internal ABS module failure or a pressure sensor failure. The pressure sensors are internal to the HCU and cannot be serviced separately. Unintentional brake fluid pressure applied when the ABS module is expecting no brake fluid pressure can set this fault.
- DTC C0044:28 (Brake Pressure Sensor "A": Signal Bias Level Out of Range/Zero Adjustment Failure) - this DTC sets if the brake pressure sensor signals do not match. This fault could set by either an internal ABS module failure or a pressure sensor failure.
- DTC C0044:49 (Brake Pressure Sensor "A": Internal Electronic Failure) - this DTC sets if the brake pressure sensor signals do not match. This fault could set by either an internal ABS module failure or a pressure sensor failure.
- DTC C0044:64 (Brake Pressure Sensor "A": Signal Plausibility Failure) - this DTC sets if the brake pressure sensor signals do not match. This fault could set by either an internal ABS module failure or a pressure sensor failure.
This pinpoint test is intended to diagnose the following:
- Brake pedal position switch/bracket
- ABS module
- HCU