Normal Operation
WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
The wheel speed sensors are active sensors and generate a square wave signal that is sent to the ABS module. When the ignition is turned to the RUN position, the ABS module carries out a self-test to determine if the sensors are functional. Voltage and ground are supplied to the front and rear wheel speed sensors from the ABS module along a pair of wires.
Wheel speed sensor DTCs automatically clear when a successful test drive is carried out. A successful test drive includes speeds above 32 km/h (20 mph) and at least one ABS stop.
SPECIAL TOOL(S)
| DTC Description | Fault Trigger Conditions |
|---|---|
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These DTCs set in continuous memory and on-demand when the ABS module detects that the wheel speed sensor circuit is open or has high resistance. |
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These DTCs set in continuous memory and on-demand when the ABS module detects that the wheel speed sensor circuit indicates higher voltage than expected. |
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These DTCs set 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