How are Active Suspension Air Spring Control Solenoid issues diagnosed?
When the air suspension is having an issue, the seasoned technician will have a good idea of the issue before inspecting the active suspension system. When noting that the suspension will not raise or lower at one or more wheels, the technician will likely test the height or pressure sensors with a diagnostic scan tool, followed by the air bag control solenoids. If the solenoids do not actuate on command, the solenoid circuit will be tested for proper operation before replacing the airbag control solenoid.
How are Active Suspension Air Spring Control Solenoids replaced?
Replacing an air bag control solenoid may require replacing them all as a whole, or replacing only the defective solenoid. In nearly all cases, the solenoid and valve are the same component. First, the active suspension system is deactivated, and air bags are deflated. Then, the solenoid or solenoids needing replacement are disconnected electrically and pneumatically. The pneumatic line ends are cleaned, and, if needed, a sealant is applied before securing the new solenoid. Once installed, the solenoid will be tested once again for function when commanded by a diagnostic scanner.
RepairPal Recommendations for Active Suspension Air Spring Control Solenoid issues
Any time the air suspension system is opened, it should be purged of air before reclosing the system. This will help rid the system of moisture caused by humidity and condensation. Also, this will allow the technician to monitor for debris, and take action if needed.
What to look out for when dealing with Active Suspension Air Spring Control Solenoid issues
When diagnosing any active suspension system, the suspension must be deactivated before raising the vehicle with a jack. When the vehicle is lifted, the active suspension will attempt to level itself if left on, and this may result in damage to the active suspension system, or unstable lifting with the jack. If deactivating the system is not possible, disable the compressor.
Can I replace the Active Suspension Air Spring Control Solenoid myself?
Nearly anyone could diagnose and repair a failed active suspension air bag control solenoid, but the proper tooling will drive many from attempting the repair. Since fast detection of faulty components requires the use of a diagnostic scan tool, most owners will take the vehicle to a professional rather than purchase expensive software and connectors. If the problem is known, the average DIYer can easily replace the solenoid with only the assistance of the vehicle specific service manual.
