Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that tells the car how fast the right back wheel is turning. It's like the car can't 'see' that wheel properly.
The vehicle's computer has detected an issue with the electrical circuit of the right rear wheel speed sensor, which may be open or not sending a signal.
The C0512 code is triggered when the ABS module detects an open circuit or a malfunction in the right rear wheel speed sensor circuit. This sensor is crucial for monitoring wheel speed and is used by the ABS system to prevent wheel lock-up during braking.
• ABS warning light on
• Traction control light on
• Inoperative ABS system
• Faulty right rear wheel speed sensor
• Damaged or corroded wiring/connectors
• Faulty ABS control module
ABS: Anti-lock Braking System
Sensor: A device that detects or measures a physical property
• Inspect the right rear wheel speed sensor and its wiring for damage.
• Check the sensor's electrical connections for corrosion or looseness.
• Use a multimeter to test the sensor's resistance and continuity.
• Replace the right rear wheel speed sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the ABS control module if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $300
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect wheel speed sensors and wiring.
• Keep the vehicle's undercarriage clean to prevent corrosion.
• Perform routine maintenance checks on the ABS system.
Sensor Issue
• Do not ignore the ABS warning light.
• Drive cautiously if the ABS system is inoperative.
• Seek professional diagnosis and repair.
Check with your vehicle manufacturer for warranty coverage on ABS components.
Wheel speed sensor issues are common in vehicles with high mileage or those frequently driven in harsh conditions.
Moderate – While the vehicle is still drivable, the ABS system may not function properly, affecting braking performance.
Driving with a malfunctioning ABS system can increase stopping distances and the risk of skidding, especially on slippery surfaces.
• Vehicle parked on a flat surface
• Ignition off
The right rear wheel speed sensor is located near the brake rotor on the right rear wheel.
Q: Can I drive with a C0512 code?
A: Yes, but be cautious. The ABS system may not work correctly, affecting braking performance.
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 completed.
Pro · Four-system diagnostics
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Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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