Step  | Action  | Value(s)  | Yes  | No  | ||||
|---|---|---|---|---|---|---|---|---|
1  | Did you perform the Horns System Check?  | --  | Go to Step 2  | Go to Horns System Check  | ||||
2  | 
 Does the test lamp light at both terminals?  | --  | Go to Step 4  | Go to Step 3  | ||||
3  | Repair an open in CKT 1142 (RED). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | ||||
4  | Connect a fused jumper between the relay terminal 87 and terminal 30. Do the horns sound?  | --  | Go to Step 6  | Go to Step 5  | ||||
5  | 
 Does the test lamp light?  | --  | Go to Step 8  | Go to Step 7  | ||||
6  | 
 Does the test lamp light?  | --  | Go to Step 10  | Go to Step 9  | ||||
7  | Repair an open in CKT 29 (DRK GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | ||||
8  | 
 
 Does the test lamp light?  | --  | Go to Step 12  | Go to Step 11  | ||||
9  | Test for an open in CKT 28 (BLK). Was an open found?  | --  | Go to Step 13  | Go to Step 14  | ||||
10  | Replace the horn relay. Refer to Horn Relay Replacement . Is the repair complete?  | --  | Go to Horns System Check  | --  | ||||
11  | Repair the open in CKT 1350 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | ||||
12  | Replace the horns. Refer to Wiring Repairs . in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | ||||
13  | Repair an open in CKT 28 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  | ||||
14  | Replace the horn switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Horns System Check  | --  |