C003E
Rear Wheel Speed Sensor Supply
What it means
C003E means Rear Wheel Speed Sensor Supply.
Where it lives
For C003E, start at the sensor the description names.
Check these first
- An open or short in the rear wheel speed sensor supply circuit
- Corrosion at the rear wheel speed sensor connector
- A failed rear wheel speed sensor
- Loose or corroded connections in the ABS system
- A fault in the ABS control module
What to do next
- Inspect the rear wheel speed sensor supply wiring and connector
- Test the rear wheel speed sensor for proper operation
- Monitor the rear wheel speed sensor circuit with a scan tool
- Check the ECU and ABS module for faults
- Test the wheel speed sensor circuit supply voltage
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.