Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the computer in your car is having trouble with the power steering system, which helps you turn the steering wheel more easily. It's like when a video game controller doesn't respond well.
The C0559 code indicates a problem with the power steering control module's performance. It may not be operating within its expected range.
The power steering control module monitors and controls the power steering system's performance. If it detects that the system is not operating within the expected parameters, it triggers the C0559 code. This can be due to electrical issues, software problems, or mechanical faults within the steering system.
• Difficulty steering
• Warning light on dashboard
• Intermittent power steering assistance
• Faulty power steering control module
• Electrical wiring issues
• Software malfunction in the control module
OBD-II: On-Board Diagnostics, a system for self-diagnosing and reporting vehicle issues.
Control Module: An electronic component that controls various functions in the vehicle.
• Connect a diagnostic scanner to check for the C0559 code.
• Inspect the wiring and connectors related to the power steering control module.
• Test the power steering control module for proper operation.
• Repair or replace damaged wiring or connectors.
• Reprogram or update the software of the power steering control module.
• Replace the faulty power steering control module.
• OBD-II scanner
• Multimeter
• Software update tool
$200 - $800
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regular maintenance of the power steering system
• Routine checks of electrical connections
• Software updates as recommended by manufacturer
Control Module Performance Issue
• Do not ignore the warning light; get it checked.
• Avoid driving at high speeds until repaired.
• Consult a professional mechanic for diagnosis.
Check with the vehicle manufacturer for any warranty coverage on the power steering system.
This code has been reported in vehicles with electronic power steering systems, particularly in models with known control module issues.
Moderate – It should be addressed soon to ensure safe driving conditions.
Ignoring power steering issues can lead to difficult steering and potential loss of vehicle control.
• Vehicle running
• Steering wheel turned to various positions
The power steering control module is typically located near the steering column or integrated into the steering gear.
Q: Can I drive with a C0559 code?
A: It's not recommended to drive with this code active, as it may affect your ability to steer safely.
Q: How do I reset the C0559 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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