Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that helps make steering easier or harder, depending on how fast you're going. It's like when a toy's remote control stops working because of a loose wire.
The C0620 code indicates an issue with the electrical circuit that controls the variable effort steering system. This system adjusts the steering effort based on vehicle speed.
The variable effort steering system uses an actuator to adjust the steering effort required by the driver. The C0620 code is triggered when the control module detects an open circuit or fault in the actuator's control circuit, which can affect the steering performance.
• Steering feels too light or too heavy
• Steering warning light illuminated
• Difficulty steering at low or high speeds
• Faulty steering actuator
• Open or shorted wiring in the steering circuit
• Defective control module
Actuator: A device that causes a mechanical system to move or operate.
Control Module: An electronic device that manages various functions in a vehicle.
• Inspect the wiring and connectors for damage or corrosion.
• Check the steering actuator for proper operation.
• Test the control module for faults.
• Repair or replace damaged wiring or connectors.
• Replace the faulty steering actuator.
• Reprogram or replace the control module if necessary.
• Multimeter
• OBD-II scanner
• Wiring diagram
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect and maintain steering components.
• Ensure electrical connections are clean and secure.
• Avoid harsh driving conditions that may stress the steering system.
Sensor Issue
• Have your vehicle inspected by a professional if the steering feels unusual.
• Avoid driving at high speeds until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on steering components.
This code has been associated with issues in vehicles with electronic steering systems, particularly in models with advanced steering features.
Moderate – It is important to address this issue to ensure safe and reliable steering performance.
Ignoring steering issues can lead to unsafe driving conditions. Always address steering warnings promptly.
• Vehicle stationary with engine running
• Steering wheel turned to various positions
The steering actuator is typically located near the steering column or within the steering rack assembly.
Q: Can I drive with a C0620 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 C0620 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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