The big foot levelers have their own relay and circuit breaker. Photo is wiring for my 2000 GBM Dp (Freightliner) but yours should be similar. The bigfoot control is on the left side of photo. (with orange tag) It has a built in circuit breaker, a red button reset.
Even tho it's a Freightliner, wiring panel is the same for Ford & Chevy. My wiring panel was in outside compartment below driver. Chevy may be on firewall...
Hope this helps.