• Bumpy ride
• Uneven vehicle height
• Suspension warning light on
• Faulty level control solenoid
• Damaged or corroded wiring/connectors
• Faulty suspension control module
Solenoid: An electromechanical device that converts electrical energy into mechanical movement.
Suspension: A system of springs and shock absorbers that smoothens the ride and maintains vehicle stability.
• C0662
• C0664
This code means there's a problem with the car's suspension system, which helps make the ride smooth. It's like when a bike's shock absorber isn't working right, making the ride bumpy.
The C0663 code indicates an issue with the suspension control system, specifically related to the level control solenoid circuit.
C0663 is a diagnostic trouble code (DTC) for 'Level Control Solenoid Circuit Malfunction.' This code is triggered when the vehicle's control module detects a problem with the electrical circuit of the level control solenoid, which is part of the air suspension system.
• Inspect the level control solenoid and its wiring for damage.
• Check for corrosion or loose connections in the circuit.
• Test the suspension control module for proper operation.
• Replace the faulty level control solenoid.
• Repair or replace damaged wiring/connectors.
• Replace the suspension control module if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Tahoe
• GMC Yukon
• Cadillac Escalade
• Regularly inspect suspension components for wear.
• Keep electrical connections clean and dry.
• Perform routine maintenance checks.
Sensor Issue
• Have the suspension system checked by a professional.
• Avoid driving on rough terrain until the issue is fixed.
Check if your vehicle's suspension components are covered under warranty.
This code has been associated with vehicles using air suspension systems, particularly in larger SUVs.
Moderate – While the vehicle can still be driven, it may lead to further suspension damage if not addressed.
Driving with a faulty suspension system can be unsafe and may lead to further vehicle damage.
• Vehicle parked on a level surface
• Suspension system fully operational
The level control solenoid is typically located near the air suspension compressor or within the suspension system itself.
Q: Can I drive my car with a C0663 code?
A: It's possible to drive, but it's not recommended as it may cause further damage to the suspension system.
Q: How do I reset the C0663 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, the code may reappear.
