Normal Operation
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The 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 is turned to the RUN position, the ABS module carries out a self-test by sending a reference voltage to all of the wheel speed sensors and their circuitry to determine if they are functional.
| DTC Description | Fault Trigger Conditions |
|---|---|
|
A DTC that sets in continuous memory and on demand when the ABS module detects that the wheel speed sensor circuit is open or has high resistance. |
|
A DTC that sets in continuous memory and on demand when the ABS module detects that the wheel speed sensor circuit indicates higher voltage than expected. |
|
A DTC that sets in continuous memory and on demand when the ABS module detects that the wheel speed sensor circuit is shorted to ground. |
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Wheel speed sensor
- ABS module