Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
DEFINITION: Horns will not sound when horn button is pressed. | ||||
1 | Was the Diagnostic System Check performed? | -- | Go to Step 2 | |
2 |
Do the lamp light? | -- | Go to Step 3 | Go to Step 10 |
3 | Connect fused jumper between B+ and Underhood Junction Block C1, A12, or B12. Do the horns sound? | -- | Go to Step 5 | Go to Step 4 |
4 | Connect a test lamp between the horn terminal A(CKT 250) and battery (B+). Does the test lamp light? | -- | Go to Step 9 | Go to Step 10 |
5 |
Is the repair complete? | -- | Go to Step 6 | Go to Step 11 |
6 | Connect a test lamp between the Underhood Junction Block terminal 25 to ground. Does the test lamp light? | -- | Go to Step 7 | |
7 | Replace the horn relay. Is the repair complete? | -- | Go to Step 8 | |
8 | Replace the Undershood Junction Block, refer to Underhood Junction Block replacement.. Is the repair complete? | -- | -- | |
9 | Replace horns. Is the repair complete? | -- | -- | |
10 | Inspect G104 ground, if OK replace Ground Splice Pack G104. Is the repair complete? | -- | -- | |
11 |
Does the test lamp light? | -- | Go to Step 7 | Go to Step 12 |
12 |
Does the test lamp light? | -- | Go to Step 13 | Go to Step 14 |
13 | Replace the Dash Integration Module (DIM), refer to DIM replacement. Is the repair complete? | -- | -- | |
14 |
Does the test lamp light? | -- | Go to Step 15 | Go to Step 16 |
15 | Repair short to ground in CKT 28 (BLK). Is the repair complete? | -- | -- | |
16 | Repair open in CKT 28 in the steering column. Is the repair complete? | -- | -- | |
