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 that helps with braking isn't working right.
The ABS (Anti-lock Braking System) control module is not performing as expected, which can affect the vehicle's braking system.
The C0563 code indicates a problem with the ABS control module's performance. This module is responsible for managing the anti-lock braking system, which prevents the wheels from locking up during braking. A performance issue could mean the module is not processing information correctly or responding as it should.
• ABS warning light illuminated
• Unresponsive brakes under hard braking
• Inconsistent braking performance
• Faulty ABS control module
• Poor electrical connection to the ABS module
• Software issues within the ABS module
ABS: Anti-lock Braking System
OBD-II: On-Board Diagnostics, Second Generation
• Check for other related codes
• Inspect the electrical connections to the ABS module
• Test the ABS module for proper operation
• Replace the ABS control module
• Repair or replace faulty wiring or connectors
• Update the ABS module software
• OBD-II scanner
• Multimeter
• Basic hand tools
$300 - $1200
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect braking system components
• Ensure software updates are applied
• Maintain clean and secure electrical connections
Control Module Performance
• Do not ignore the ABS warning light
• Have the braking system inspected by a professional
• Avoid hard braking until the issue is resolved
Check with your vehicle manufacturer for warranty coverage on ABS components.
This code has been commonly reported in vehicles with aging ABS modules or those exposed to harsh conditions.
High – A malfunctioning ABS can significantly affect braking performance and safety.
Driving with a faulty ABS system can be dangerous and may not comply with vehicle safety regulations.
• Vehicle parked on a level surface
• Ignition in the ON position
The ABS control module is typically located near the engine bay, close to the brake master cylinder.
Q: Can I drive with the ABS light on?
A: It's not recommended, as it indicates a problem with the braking system that could affect safety.
Q: How do I reset the ABS light?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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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