Question about 2004 Mercury Sable
1) Check for power to horn unit with steering wheel horn switch depressed. If power present, replace horn unit.
2) Check horn switch operation. Repair or replace.
3) Check continuity from driver's horn switch mechanism and horn wiring. If faulty, then trace wiring back to fuse box and relay assembly.
Make sure you haven't skipped any steps before attacking the fuse box issue.
Posted on Nov 04, 2012
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Posted on Jan 02, 2017
To get your diagram go to the link below. On page 156 will show you the fuse box. The link will also give you the manual of the car.
Good Luck and please rate 4 thumbs up for the free answer
Posted on Jun 26, 2010
SOURCE: 1996 Mercury Sable
go to the link below and follow it to a PDF of your owners manual, the fuse box info is in the owners manual.
Posted on May 15, 2009
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