For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Horn Schematics DEFINITION: Horns always on
1 | Did you review the Horn system description and operation and perform the necessary inspections? | Go to Step 2 | Go to Horns System Description and Operation
2 | Verify the fault is present. Does the system operate normally? | Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3
3 | Remove the horn relay. Did the horn stop sounding? | Go to Step 4 | Go to Step 5
4 | With the horn relay still removed, test the switch signal circuit for ground. Is ground present? | Go to Step 6 | Go to Step 7
5 | Repair the short to voltage in the horn supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you find and complete the repair? | Go to Step 8 | --
6 | Repair the short to ground in the horn relay switch signal circuit. Refer to Wiring Repairs in Wiring Systems. Did you find and complete the repair? | Go to Step 8 |
7 | Replace the horn relay.. Did you complete the replacement? | Go to Step 8 |
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3