How to replace the ride height control module

A bumpy ride, uneven ride height, or an air suspension light coming on may indicate a malfunctioning ride control module.

Some cars have adjustable suspension. In these systems, the ride height control module commands the ride height to be adjusted to provide the desired level of front and rear suspension. Most systems are pneumatic and the control module receives input from various sensors such as height sensors, vehicle speed sensors, steering wheel angle sensor, yaw rate sensor, and brake pedal sensor. It then uses this information to determine the control of the air compressor motor and system solenoids to raise and lower the vehicle. Common symptoms include an Air Ride suspension light coming on, a bumpy ride, or uneven ride height.

Part 1 of 1: Replacing the ride height control module

Necessary materials

• Ratchet and sockets of the right size
• Repair manuals
• Protective gloves
• Safety glasses
• Screwdrivers
• Clipping toolbar

Step 1. Locate the ride height control module.. The ride height control module may be located in one of many locations depending on the vehicle.

Some of them are located inside the dashboard, some on the inner fender or under the car. Refer to factory repair information if you are having difficulty finding your module.

• AttentionA: This process depends on the vehicle. Depending on the design, there may be many elements that must first be removed in order to access the module.

Step 2: Disconnect the negative battery cable. Disconnect the negative battery cable and set it aside.

Step 3. Disconnect the electrical connector(s) of the control module.. Disconnect the control module electrical connector(s) by pushing in on the tab and pulling it out.

Some connectors may also have tabs that need to be pryed out with a small flathead screwdriver.

Step 4 Remove the control module fasteners.. Using a screwdriver or ratchet, remove the fasteners that secure the control module to the vehicle.

Step 5: Remove the control module. Remove the control module from the vehicle.

Step 6: Set the new seat switch to the desired position..

Step 7: Replace electrical connectors.. Make sure they are attached as before.

Step 8. Reinstall the control module mount..

Step 9: Connect the negative battery cable.. Be sure to tighten it.

If you feel like this is a job you'd rather leave to the professionals, or if you don't feel confident doing repairs yourself, have one of AvtoTachki's experienced mechanics come to your home or replace the ride height control module.