Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Lexus >> 2003 >> GS 430 >> Repair and Diagnosis >> Body & Frame >> Windows >> Troubleshooting (Body Electrical) >> Problem Symptoms Table >> Horn System

Horn System

HORN SYSTEM PROBLEM SYMPTOM

Symptom Suspect Area Action
Horn system does not operate. 1. HORN Fuse POWER SOURCE
2. Horn Relay HORN SYSTEM
3. Horn Switch HORN SYSTEM
4. Horn HORN SYSTEM
5. Wire Harness -
Horns blow all the time. 1. Horn Relay HORN SYSTEM
2. Horn Switch HORN SYSTEM
3. Wire Harness -
One horn operates but the other horn does not operate. 1. Horn HORN SYSTEM
2. Wire Harness -
Horns operate abnormally. 1. Horn Relay HORN SYSTEM
2. Horn HORN SYSTEM
3. Wire Harness -