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.
Active wheel speed sensors generate a square wave signal that is sent to the ABS module. The wheel speed sensor circuitry connects to the ABS module through 2 wires and a connector at each wheel speed sensor. When the ignition switch is turned to the RUN position, the ABS module carries out a self-test by sending a reference voltage through the wheel speed sensors and their circuitry.
DTC DESCRIPTION TABLE
| DTC Description | Fault Trigger Condition |
|---|---|
|
If, during the ABS module on-demand self test or during normal operation, the ABS module detects an open, short to ground or voltage or a defective wheel speed sensor input circuit, the appropriate DTC is set. These DTCs are usually set by a damaged sensor or a circuit fault. |
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Wheel speed sensor ring (part of the wheel bearing and hub assembly)
- Wheel speed sensors
- ABS module