Diagnosis And Testing: Horn: Notes
Horn
Base Part Number:13801
DTC Chart(s)
DTC Chart: Horn
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods
Body Control Module (BCM) DTC Chart
| DTC | Description | Actions |
|---|---|---|
| B1323:11 | Horn Switch: Circuit Short To Ground | GO to Pinpoint Test B |
| B1323:23 | Horn Switch: Signal Stuck Low | GO to Pinpoint Test B |
| B1C55:11 | Horn Relay: Circuit Short to Ground | GO to Pinpoint Test B |
| B1C55:12 | Horn Relay: Circuit Short to Battery | GO to Pinpoint Test A |
| B1C55:13 | Horn Relay: Circuit Open | GO to Pinpoint Test A |
| B1C55:14 | Horn Relay: Circuit Short to Ground or Open | If the horn is inoperative, GO to Pinpoint Test A If the horn is always on, GO to Pinpoint Test B |
| B1C55:19 | Horn Relay: Circuit Current Above Threshold | GO to Pinpoint Test A |
Symptom Chart(s)
Symptom Chart: Horn
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods
Symptom Chart
| Condition | Possible Sources | Actions |
|---|---|---|
| The horn is inoperative | Refer to the pinpoint test | GO to Pinpoint Test A |
| The horn is always on | Refer to the pinpoint test | GO to Pinpoint Test B |