Step  | Action  | Value(s)  | Yes  | No  | 
|---|---|---|---|---|
1  | Did you perform the Horns System Check?  | --  | Go to Step 2  | Go to Horns System Check  | 
2  | 
 Is there continuity?  | --  | Go to Step 4  | Go to Step 3  | 
3  | Locate and repair the open in CKT 250 (BLK) between the horn connector and G112. Refer to Wiring Repairs in wiring. Is the repair complete?  | --  | Go to Horns System Check  | --  | 
4  | 
 Is there battery voltage?  | --  | Go to Step 5  | Go to Step 6  | 
5  | Replace the defective horn. Refer to Horn Replacement . Is the repair complete?  | --  | Go to Horns System Check  | --  | 
6  | 
 Is there battery voltage?  | --  | Go to Step 8  | Go to Step 7  | 
7  | Locate and repair the open in CKT 740 (ORN) between the underhood fuse block and the HORN fuse. Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | 
8  | Connect a J 39200 between the underhood fuse block cavity D3 and ground. Is there battery voltage?  | --  | Go to Step 9  | Go to Step 7  | 
9  | Connect a J 39200 between cavity C3 and cavity D1 of the horn relay. Is there continuity?  | --  | Go to Step 12  | Go to Step 10  | 
10  | 
 Is there continuity?  | --  | Go to Step 11  | Go to Step 13  | 
11  | Locate and repair the open in CKT 28 (BLK) between the underhood fuse block and the horn connector(s). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | 
12  | Replace the horn relay. Is the repair complete?  | --  | Go to Horns System Check  | --  | 
13  | 
 Is there continuity?  | --  | Go to Step 15  | Go to Step 14  | 
14  | Locate and repair the open in CKT 28 (BLK) between the underhood fuse block and C266. Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | 
15  | 
 Is there continuity?  | --  | Go to Step 16  | Go to Step 17  | 
16  | Replace the horn switch. Refer to Horn Switch Replacement - On Vehicle in Steering Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | 
17  | Locate and repair the open in CKT 28 (BLK) between C266 and the horn switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  |