• ABS warning light on the dashboard
• Traction control system may be disabled
• Possible loss of anti-lock braking functionality
• Faulty right rear wheel speed sensor
• Damaged or corroded wiring or connectors
• Faulty ABS module
ABS: Anti-lock Braking System
OBD-II: On-Board Diagnostics, Second Generation
• C0040
• C0050
The car's computer is having trouble understanding the speed of the right back wheel. It's like when you try to read a clock, but the hands are missing.
The vehicle's control module is detecting an inconsistency or mismatch in the speed readings from the right rear wheel speed sensor.
The C0517 code indicates that the Anti-lock Braking System (ABS) module has detected a discrepancy between the expected and actual readings from the right rear wheel speed sensor. This sensor is crucial for monitoring wheel rotation speed and ensuring proper ABS function.
• Visually inspect the right rear wheel speed sensor and its wiring.
• Use a multimeter to test the sensor's electrical resistance.
• Check the ABS module for any additional fault codes.
• Replace the faulty wheel speed sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ABS module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $350
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect wheel speed sensors and wiring.
• Keep the ABS system clean and free of debris.
• Perform routine maintenance checks.
Sensor Issue
• Avoid driving in conditions where ABS is crucial until repaired.
• Have the vehicle inspected by a professional mechanic.
Check with the vehicle manufacturer for warranty coverage on ABS components.
This code has been reported in vehicles with high mileage or those frequently driven in harsh conditions.
Moderate – While the vehicle is drivable, ABS functionality may be compromised, affecting safety in certain driving conditions.
Driving with a malfunctioning ABS system can increase the risk of accidents in slippery conditions.
• Vehicle must be driven at a consistent speed.
• ABS system must be engaged during testing.
The right rear wheel speed sensor is located near the wheel hub assembly on the rear passenger side.
Q: Can I drive with a C0517 code?
A: Yes, but it's not recommended as the ABS may not function properly, which could be unsafe in slippery conditions.
Q: How do I reset the ABS light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are made.