Location of inertia switch on Chevy suburban - 2008 Chevrolet Suburban

SOURCE: is there an inertia switch on a 1999 chevy

No it doesn't have one.

SOURCE: Looking for Location of ABS relay on 2000 Chevy Suburban

there are 2 fuses only for the abs on the trk. 60 amp #2 maxi fuse and fuse #3 10 amp fuse for the ebcm. there isnt any relays for the abs.

SOURCE: fuel pump inertia switch

A good way to check the fuel pump relay is to find the A/C compressor relay and swap them. They are the same exact part and its better than going out and buying a relay you may not need:http://www.diyobd2.fr/wholesale/fvdi-abrites-commander-for-renaultv52-2313.html Also, this is a good roadside emergency fix should you ever need it (I have).