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 you steer has a problem with its software. It's like when a video game doesn't work right because the game code is broken.
This code indicates that there is a software error in the Power Steering Control Module, which is responsible for managing the power steering system.
The Power Steering Control Module (PSCM) is responsible for controlling the electric power steering system. A C1128 code means that the module has detected a software error, which could affect the steering performance.
• Steering feels heavy or difficult
• Power steering warning light is on
• Intermittent loss of power steering assistance
• Corrupted software in the Power Steering Control Module
• Failed software update
• Faulty Power Steering Control Module
Power Steering: A system that helps drivers steer by augmenting the steering effort of the steering wheel.
Control Module: An electronic component that manages various functions of a system, such as the power steering.
• Perform a diagnostic scan to confirm the C1128 code.
• Check for any available software updates for the Power Steering Control Module.
• Inspect the wiring and connections to the Power Steering Control Module.
• Update the software of the Power Steering Control Module.
• Reset the Power Steering Control Module.
• Replace the Power Steering Control Module if necessary.
• OBD-II scanner
• Diagnostic software tool
• Basic hand tools
$150 - $800
Moderate
• Ford F-150
• Chevrolet Silverado
• Honda Accord
• Regularly update vehicle software
• Perform routine maintenance checks
• Avoid harsh driving conditions that could affect the steering system
Software Issue
• Avoid driving at high speeds until the issue is resolved.
• Schedule a service appointment with a qualified technician.
Check with your vehicle manufacturer for warranty coverage on the Power Steering Control Module.
This code has been reported in vehicles with electric power steering systems, particularly in models with early versions of electronic steering software.
Moderate – Steering issues can affect vehicle control, so it should be addressed promptly.
Driving with impaired steering can be dangerous. Address this issue to ensure safe vehicle operation.
• Vehicle must be in a safe location
• Ensure the vehicle is on a level surface
The Power Steering Control Module is typically located near the steering column or integrated into the steering rack.
Q: Can I drive with a C1128 code?
A: It's not recommended to drive with this code as it can affect steering performance. Get it checked as soon as possible.
Q: How can I prevent a C1128 code?
A: Regular software updates and maintenance checks can help prevent this code.
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