• Bumpy or uncomfortable ride
• Suspension warning light on dashboard
• Uneven vehicle height
• Faulty rear suspension position sensor
• Damaged wiring or connectors
• Faulty control module
Suspension: The system of springs, shock absorbers, and linkages that connects a vehicle to its wheels.
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
• C0650
• C0651
This code means there's a problem with the car's suspension system. It's like when a bicycle's shock absorber isn't working right, making the ride bumpy.
C0649 indicates a malfunction in the rear suspension position sensor circuit.
The C0649 code is triggered when the vehicle's control module detects an issue with the rear suspension position sensor circuit. This sensor helps the car adjust its suspension for a smooth ride. If the sensor or its circuit fails, the suspension might not work correctly.
• Inspect the rear suspension position sensor for damage.
• Check wiring and connectors for corrosion or damage.
• Test the control module for proper operation.
• Replace the rear suspension position sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• Chevrolet Tahoe
• GMC Yukon
• Cadillac Escalade
• Regularly inspect suspension components.
• Keep sensor areas clean and free of debris.
• Address suspension warning lights promptly.
Suspension System Issue
• Drive cautiously if the suspension feels off.
• Have the vehicle inspected by a professional.
• Avoid rough roads until the issue is fixed.
Check with your vehicle manufacturer for warranty coverage on suspension components.
This code has been associated with vehicles equipped with electronic suspension systems, especially in models from the early 2000s.
Moderate – Addressing this issue soon is recommended to ensure a comfortable and safe ride.
Driving with a malfunctioning suspension system can affect vehicle handling and safety. Address the issue promptly.
• Vehicle parked on a level surface
• Ignition in the 'On' position without starting the engine
The rear suspension position sensor is typically located near the rear wheel well, attached to the suspension components.
Q: Can I drive with a C0649 code?
A: It's possible to drive, but the ride may be uncomfortable, and handling could be affected. It's best to fix the issue soon.
Q: How can I reset the suspension warning light?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, the light should stay off.
