• Uneven ride height
• Bumpy or uncomfortable ride
• Suspension warning light on the dashboard
• Faulty air suspension solenoid
• Damaged wiring or connectors in the suspension system
• Defective suspension control module
Suspension: A system in a vehicle that supports weight and absorbs shocks.
Solenoid: An electromechanical device used to control the flow of air or liquid.
• C0621
• C0623
This code means there's a problem with the car's suspension system, which helps keep the ride smooth. It's like when your bicycle's tires are too soft or too hard, making the ride bumpy.
C0622 indicates an issue with the suspension control system, specifically related to the air suspension solenoid circuit.
The C0622 code is triggered when the vehicle's suspension control module detects a malfunction in the air suspension solenoid circuit. This circuit is responsible for adjusting the air pressure in the suspension system to maintain proper ride height and comfort.
• Check for other related codes
• Inspect the air suspension solenoid and wiring for damage
• Test the suspension control module functionality
• Replace the faulty air suspension solenoid
• Repair or replace damaged wiring or connectors
• Replace the suspension control module if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Tahoe
• GMC Yukon
• Cadillac Escalade
• Regularly inspect suspension components
• Avoid overloading the vehicle
• Maintain proper tire pressure
Suspension System Issue
• Drive cautiously if the suspension feels uneven
• Address the issue promptly to avoid further damage
Check with your vehicle manufacturer for warranty coverage on suspension components.
The C0622 code has been associated with vehicles equipped with air suspension systems, particularly in models from the early 2000s.
Moderate – While the vehicle may still be drivable, the ride quality and handling could be compromised.
Driving with a malfunctioning suspension system can be dangerous, as it affects vehicle handling and stability.
• Vehicle parked on a level surface
• Ignition in the 'on' position
The air suspension solenoid is typically located near the vehicle's air springs or struts.
Q: Can I drive with a C0622 code?
A: While you can drive with this code, it's best to address it soon to avoid further suspension issues.
Q: How do I reset the C0622 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
