Normal Operation And Fault Conditions
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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. |
| 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. |
| C1A95:01 | Wheel Speed Sensor: General Circuit/Electrical Failure | Sets when the ABS module detects an opencircuit, short to voltage, short to ground, on one or morewheel speed sensor circuits, or faults with multiple wheelspeed sensors. |