Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Horns Diagnostic System Check? | -- | Go to Step 2 | |
2 | Verify that the horns are always on. Do the horns operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Remove the horn relay from the underhood fuse block. Does the horn continue to sound? | -- | Go to Step 4 | Go to Step 5 |
4 | Repair the short to voltage in CKT 1329 (DK GRN) between the underhood fuse block connector C4 cavity A6 and horn cavity B, LH/RH. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 10 | -- |
5 | Connect a test lamp from horn relay cavity 1 to B+. Does the test lamp light? | -- | Go to Step 6 | Go to Step 7 |
6 |
Does the test lamp light? | -- | Go to Step 8 | Go to Step 9 |
7 | Replace the horn relay. Refer to Horn Relay Replacement . Is the repair complete? | -- | Go to Step 10 | -- |
8 | Locate and repair the short to ground in CKT 28 (BLK) between the horn relay and the horn switch/BCM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 10 | -- |
9 | Replace the horn switch. Refer to Horn Switch Replacement - On Vehicle in Steering Wheel and Column Steering-Tilt. Is the repair complete? | -- | Go to Step 10 | -- |
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
