Preliminary Inspection
Verify customer's complaint by operating horn system. Before performing any testing, perform a visual inspection. Check underhood fuse block HORN fuse (15-amp). Check harness connectors for loose, damaged or corroded terminals. Check for damaged wiring harness. If problem is found, repair as necessary. If no problem is found, perform horns diagnostic system check. See HORNS DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.