2005 gmc yukon what is autoride

The compressor draws filtered air through an intake line attached to an under body rail. The compressed air is then run through a dryer containing a moisture- absorbing chemical that dries the compressed air before it is sent to the shock absorber chambers.

The dryer should be cleaned and serviced during shock or compressor replacement. To service the dryer, remove the compressor assembly from the frame rail. The dryer twists apart and the desiccate beads and filter should be replaced. Service kits are available. Trimset Recalibration If the system is functioning abnormally, performing the Bumpstop and ALC Trimset recalibration procedures may correct the condition.

When a system component has been replaced, the Bumpstop setup and ALC Trimset procedures must be performed. Ensure that the vehicle has a full tank of fuel or add sufficient weight to the rear of the vehicle to simulate a full tank of fuel. Advertisement 2. Place the vehicle on a flat level surface. Ensure that the suspension is in the normal resting position. With a scan tool, perform the ALC Trimset procedure by following the screen prompts. With a scan tool, perform the suspension Bumpstop setup procedure by following the screen prompts.

Once the process has been completed, the system should be fully functional. Pressure Test Checking the integrity of this intelligent air ride system requires more than just soapy water. In order isolate a leak, the system must be at pressure. Since the system has solenoids, leaks may not be spotted until that circuit has been pressurized. Advertisement 1.

Disconnect the air tube from the air dryer. Attach the air tube to the pressure gauge on the side opposite the toggle valve. In instances of a leak in your air suspension, the compressor may turn on more often than you are used to, and may continuously run for up to five minutes. There are three fuses used specifically for the suspension, and if one fails it could be the cause of your issues. The Real-Time Dampening fuse is located in the under hood fuse block, labeled RTD and is usually a 30 amp fuse, and also located in the under hood fuse block is the STUD 1 fuse, which is often a 40 amp fuse.

One more fuse is located in the instrument panel fuse block, labeled IGN 3 and is often a 10 amp fuse. Checking these with a multimeter on continuity will let you know if any are blown, and your suspension problems could be solved by simply replacing one of these components.

The following DTC codes are specifically related to the suspension, and you should thoroughly inspect your vehicle if you receive any of these:. These four DTC Codes indicate an issue with the damper solenoid valves on the front and rear shock absorbers, and any one of these indicate an electrical issue. It is highly recommended that the shock absorber in the location the error code indicates is replaced.

These four DTC Codes indicate a height sensor issue, which are located near each wheel, behind the fender and attached to the control arms in the suspension. Each sensor is a rod connected to a small ball joint, and each sensor can be freed from the joint and tested separately. The rear sensors should activate the air suspension compressor when tested, either alerting you to an issue with the compressor or the sensor.

These sensors do not commonly fail, and are often an indicator of a bigger electrical issue. This code indicates an open circuit or a short often in the compressor motor relay, which could be caused by a blown IGN 3 fuse or an issue with the air suspension compressor. The Electronic Control System disables the compressor motor relay when this code is thrown, and may cause you to think the Ride Control Relay has gone bad.

Check the IGN 3 fuse or replace you air suspension compressor. This error is to indicate the exhaust solenoid on the air suspension compressor has gone bad, which is not always the exact case, but can be.

If no corrosion or breaks are found in the wire the exhaust solenoid is the issue. This DTC Code indicates either the Automatic Level Control pressure sensor has failed, or more commonly, the wiring for the sensor has been shorted to ground, often due to a pinched or broken wire from replacing the air suspension compressor.

Removing the air suspension compressor and inspecting all wiring can often find the cause of this error code, but in some rare cases the sensor has actually failed, often due to moisture getting in the sensor. We notice you're using an ad blocker. Please consider allowing Autoblog. Allow Us! Here's how to disable adblocking on our site. Click on the icon for your Adblocker in your browser. A drop down menu will appear. Select the option to run ads for autoblog.

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