Normal Operation and Fault Conditions
WARNING: This page is about a different car, the 2020 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Active wheel speed sensors generate a square wave signal proportional to wheel speed which is sent to the ABS module. Each wheel speed sensor is connected to the ABS module through 2 wires and a connector at each wheel speed sensor. The 2 circuits provide both sensor power and sensor signal return. When the ignition mode is set to ON, the ABS module carries out a self-test by sending a reference voltage through the wheel speed sensors and their circuitry.
PPT N ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C0037:01 | Left Rear Wheel Speed Sensor: General Electrical Failure | Sets when the wheel speed signal continuously exceeds a specified threshold or is operating outside of the allowable range. |
| C0037:11 | Left Rear Wheel Speed Sensor: Circuit Short To Ground | Sets when the ABS module detects a short to ground from the sensor signal return circuit or if the sensor has an internal short to ground. |
| C003A:01 | Right Rear Wheel Speed Sensor: General Electrical Failure | Sets when the wheel speed signal continuously exceeds a specified threshold or is operating outside of the allowable range. |
| C003A:11 | Right Rear Wheel Speed Sensor: Circuit Short To Ground | Sets when the ABS module detects a short to ground from the sensor signal return circuit or if the sensor has an internal short to ground. |