Service Suspension System

[TowGMC]

Got the Service Suspension System failure today while towing my trailer. Pump still works just fine, and no codes. About to haul the race car trailer to Alabama from Chicago and definitely don't want to have a problem on the way. But with my Reese DualCam weight distributing system it tows just fine.

What else might trigger the message if the pump is working fine?

 

[OHSIXX]

Best way to eliminate guesswork is to have the code read...but I think you need at least a Tech II for that......there are alot of components that make up the system. You could start by checking the electrical connectors at each shock location and maybe get lucky.....