Possible Causes
- circuit (DL) short to ground
- circuit (Y/LG) short to voltage
- clockspring
- horn switch (part of the steering wheel)
- SJB
HORN ALWAYS ON PINPOINT TEST REFERENCE
| PINPOINT TEST 2 | HORN IS ALWAYS ON | ||
|---|---|---|---|
| STEP | INSPECTION | ACTION | |
| 1 | CHECK CIRCUIT (Y/LG) FOR A SHORT TO VOLTAGE
|
Yes | Repair circuit (Y/LG) for a short to voltage. Test the system for normal operation. |
| No | Go to next step. | ||
| 2 | CHECK THE SJB FOR INTERNAL FAULTS
|
Yes | Install a new SJB. See SMART JUNCTION BOX (SJB) . Test the system for normal operation. |
| No | Go to next step. | ||
| 3 | CHECK CIRCUIT (DL) FOR A SHORT TO GROUND
|
Yes | Repair circuit (DL) for a short to ground. Test the system for normal operation. |
| No | Go to next step. | ||
| 4 | CHECK THE CLOCKSPRING FOR A SHORT TO GROUND
|
Yes | Install a new steering wheel. See STEERING WHEEL . Test the system for normal operation. |
| No | Install a new clockspring. See CLOCKSPRING . Test the system for normal operation. | ||