Two problems related to horn assembly have been reported for the 1998 Chevrolet Blazer. The most recently reported issues are listed below.
Suspension - rides rough: replaced shocks electrical - interior/exterior problems with the horn, headlights, directional, windshield wipers, and caution lights. Replaced: electrical unit inside steering column and oxgen sensor. Steering - replaced: wheels, tires, rotors, ball joints, and several attempts to balance tires and front end alignments with no real difference. Idles - rough.
Horn relay failed. Yh.