Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
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.
• 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
• 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.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
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