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.
The wheel speed sensor and encoder (tone wheel) generate a square wave signal proportional to wheel speed and sends this information to the ABS module. The wheel bearing, encoder and wheel speed sensor must be undamaged and free from contamination to produce a clean signal for use by the ABS module. Also, all 4 tires and wheels must be of the same manufacturer recommended size for the wheel speed sensor to generate an accurate wheel speed.
PPT AB ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fauilt Trigger Conditions |
|---|---|---|
| C0030:07, C0033: 07, C0036:07, C0039:07 | Left Front, Right Front, Left Rear, Right Rear Tone Wheel: Mechanical Failure | Sets when damage to the wheel speed sensor encoder, damage to the wheel bearing, or contamination or deformation of the wheel bearing seal affects the sensor input to the ABS module. |
| C0031:07, C0034: 07, C0037:07, C003A:07 | Left Front, Right Front, Left Rear, Right Rear Wheel Speed Sensor: Mechanical Failure | Sets when the wheel speed sensor, encoder or wheel bearing is damaged; if the wheel bearing is not installed correctly; if an incorrectly sized tire is installed; if an excessive air gap exists between the wheel speed sensor and the encoder due to an incorrect component being installed and it affects the sensor input to the ABS module. |