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 that helps control the power steering in your car is having trouble remembering things. It's like when you forget where you put your toys.
The Power Steering Control Module is experiencing a memory error, which affects its ability to function properly.
The C1120 code indicates that the Power Steering Control Module (PSCM) has detected a fault in its Random Access Memory (RAM). This can affect the module's ability to process information and control the power steering system effectively.
• Loss of power steering assist
• Warning light on the dashboard
• Intermittent steering issues
• Faulty Power Steering Control Module
• Electrical issues such as poor connections or damaged wiring
• Software glitches or corruption in the module
Power Steering Control Module: A computer that helps manage the power steering system.
Random Access Memory (RAM): Temporary memory used by the module to store and process information.
• Scan the vehicle for additional codes.
• Inspect the wiring and connections to the Power Steering Control Module.
• Test the module with a diagnostic tool.
• Repair or replace any damaged wiring or connectors.
• Reprogram or update the Power Steering Control Module software.
• Replace the Power Steering Control Module if necessary.
• OBD-II scanner
• Multimeter
• Diagnostic software
$200 - $800
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly check and maintain electrical connections.
• Update vehicle software as recommended.
• Perform regular vehicle diagnostics.
Control Module Issue
• If you notice steering issues, have your vehicle checked immediately.
• Avoid driving the vehicle if steering becomes difficult.
Check with your vehicle manufacturer for warranty coverage on control modules.
This code has been reported in various models, often related to electrical issues or software updates.
High – Steering issues can affect vehicle safety and should be addressed promptly.
Driving with a malfunctioning power steering system can be dangerous. Ensure repairs are performed by a qualified technician.
• Vehicle stationary with ignition on
• Vehicle in motion to test steering response
The Power Steering Control Module is typically located near the steering column or in the engine compartment.
Q: Can I drive with a C1120 code?
A: It's not recommended to drive with this code as it can affect steering performance and safety.
Q: How do I reset the Power Steering Control Module?
A: Resetting usually requires a diagnostic tool to clear the code and reset the module.
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