[t6chan]

I was able to get rid of this message by finding a disconnected ecu ground on the compressor frame. This ground is located right in front of the compressor and is bolted on the frame... Could it be a rely that would be sluggish? Just speculating.

On the weekend, i removed the entire compressor apparatus and connected the air bags to a Tee. Now the car is elevated correctly at around 65psi. There doesnt seem to be a leak. i sprayed soapy water and no bubbles.

I determined that there is power going to the unit so the relay up front is good. The inflator in the trunk works okay although seems weak.

Does anyone have any suggesstions on how i can test the valves and pressure sensor with the unit off the truck?

When all together, no messages come up, the compressor will not turn on to fill the bags. The inflator works. The front elevation button light does not turn on nor does anything happen.

Another issue i have is 4x4 switching does not seem to work. The button will blink but it will never switch.

All fuses seem to be okay.

Sorry for the long post but hopefully that gives you enough clues and we can figure something out.

Thanks,