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Code C0516

Quick reference

C0516 at a glance

Plain-language meaning
This code means that the car's computer is having trouble getting a steady reading from the sensor that checks how fast the right rear wheel is spinning. It's like trying to listen to a radio station with a lot of static.
Urgency
Moderate – While the vehicle can still be driven, the ABS system may not function properly, affecting braking safety.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
Multimeter, OBD-II scanner, Wrench set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer is having trouble getting a steady reading from the sensor that checks how fast the right rear wheel is spinning. It's like trying to listen to a radio station with a lot of static.

Explanation

The wheel speed sensor sends information about the wheel's speed to the car's computer. If the signal is erratic, it can affect systems like ABS.

Technical description

The C0516 code indicates that the right rear wheel speed sensor is sending an intermittent or erratic signal to the vehicle's control module. This can affect the vehicle's anti-lock braking system (ABS) and traction control system, as these rely on accurate wheel speed data.

Symptoms

• ABS warning light on

• Traction control warning light on

• Inconsistent braking performance

Common Causes

• Faulty wheel speed sensor

• Damaged wiring or connectors

• Debris or dirt on the sensor or tone ring

Glossary

ABS: Anti-lock Braking System

OBD-II: On-Board Diagnostics, Second Generation

Diagnosis steps

• Inspect the right rear wheel speed sensor for damage or debris.

• Check the wiring and connectors for signs of wear or damage.

• Use a multimeter to test the sensor's output signal.

Repair procedures

• Clean the sensor and tone ring.

• Repair or replace damaged wiring or connectors.

• Replace the wheel speed sensor if faulty.

Tools required

• Multimeter

• OBD-II scanner

• Wrench set

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Malibu

• GMC Sierra

• Cadillac CTS

Preventive measures

• Regularly clean the wheel sensors and tone rings.

• Inspect wiring and connectors for damage.

• Avoid driving through deep water or mud.

Error code type

Sensor Issue

User experience recommendations

• Have the vehicle inspected by a professional if the ABS light is on.

• Avoid sudden braking if the ABS system is not functioning properly.

Warranty information

Check with the vehicle manufacturer for warranty coverage on ABS components.

Historical data

This code has been commonly reported in vehicles with high mileage or those frequently driven in harsh conditions.

Urgency level

Moderate – While the vehicle can still be driven, the ABS system may not function properly, affecting braking safety.

Testing conditions

• Vehicle must be driven at a steady speed.

• Ensure the ABS warning light is illuminated.

Component location

The right rear wheel speed sensor is located near the wheel hub assembly on the rear passenger side of the vehicle.

FAQs

Q: Can I drive with a C0516 code?
A: You can drive, but it's not recommended as the ABS may not work properly, affecting your ability to stop safely.

Q: How do I reset the ABS light after fixing the issue?
A: Use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes to reset the system.

Optional diagnostic gear

Tools that may help diagnose C0516

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

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.

View on Amazon
EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" 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.

View on Amazon
MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle Ramps

Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.

Helpful for safer access during underbody inspection work.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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