Cadillac Fuse Box Diagram
Air pump not working.
Normally when Air pump stops working it blows its controlling fuse or on some cases the IGN fuse blows,which also causes the same problem,that it will stop air pump from turning ON.
See below Cadillac Deville Underhood Fuse box details and Fuse box Diagram
For Air pump issue check fuse #11 in the under hood fuse box and also #45 that feeds it.
Cadillac Deville Fuse panel details
These details an fuse box diagrams will help.
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