Is there an external sensor for the rear load leveling air compressor on 2007 Chevrolet Suburban 1500

My rear shock compressor comes on but only pumps for a few seconds.

Asked by for the 2007 Chevrolet Suburban 1500
according to all data there is a load leveling switch on rt rear frame rail. hope this helps
Agreed, but if the truck does not reach that designated point it should keep pumping. Correct?
ck in level ride module for codes, that will help
Great Thanks