Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
|
Important: Use J 35616 | ||||
1 |
Is the horn fuse OK? | -- | Go to Step 2 | Go to Step 3 |
2 | Use a test light to probe the horn relay terminal C3 and the ground. Does the test light illuminate? | -- | Go to Step 4 | Go to Step 5 |
3 |
Is the fuse OK? | -- | Go to Step 7 | Go to Step 5 |
4 | Use a test light to probe the horn relay terminal B3 and the ground. Does the test light illuminate? | -- | Go to Step 6 | Go to Step 5 |
5 | Replace the Engine Wiring Harness Junction Block 2. Has the repair been made? | -- | Go to Step 24 | -- |
6 |
Does the test light illuminate? | -- | Go to Step 8 | Go to Step 9 |
7 | Repair a short to ground in circuit 29 between the horn terminal B and the horn relay terminal C1. Has the repair been made? | -- | Go to Step 24 | -- |
8 |
Does the test light illuminate? | -- | Go to Step 10 | Go to Step 11 |
9 |
Does the test light illuminate? | -- | Go to Step 18 | Go to Step 19 |
10 |
Does the test light illuminate? | -- | Go to Step 12 | Go to Step 13 |
11 | Replace the horn relay. Refer to Horn Relay Replacement for service procedure. Has the repair been made? | -- | Go to Step 24 | -- |
12 | Use a test light to probe B+ and the horn terminal A. Does the test light illuminate? | -- | Go to Step 14 | Go to Step 15 |
13 | Repair a poor connection or an open in circuit 29 between the horn relay terminal C1 and the horn terminal B. Has the repair been made? | -- | Go to Step 24 | -- |
14 | Replace the horn assembly. Refer to Horn Replacement for service procedure. Has the repair been made? | -- | Go to Step 24 | -- |
15 | Test the low beam headlamps. Do they work? | -- | Go to Step 16 | Go to Step 17 |
16 | Repair a poor connection or an open in circuit 1250 between S123 and the horn terminal A. Has the repair been made? | -- | Go to Step 24 | -- |
17 | Repair a poor connection or an open in circuit 1250 between S123 and G102. Has the repair been made? | -- | Go to Step 24 | -- |
18 |
Does the test light illuminate? | -- | Go to Step 20 | Go to Step 21 |
19 | Check the horn switch ground. Is the ground good? | -- | Go to Step 22 | Go to Step 23 |
20 | Repair a poor connection or an open in circuit 28 between C219 terminal A and the engine wiring harness junction block 2 terminal B1. Has the repair been made? | -- | Go to Step 24 | -- |
21 | Repair a poor connection or an open in circuit 28 between C219 terminal A and C201 terminal A7. Has the repair been made? | -- | Go to Step 24 | -- |
22 | Repair a poor connection in circuit 28 between C201 terminal A7 and the horn switch. Has the repair been made? | -- | Go to Step 24 | -- |
23 |
Has the repair been made? | -- | Go to Step 24 | -- |
24 |
Have all repairs been made? | -- | Go to Horns System Check | -- |
