Diagnosis And Testing - Horn System
WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
| HORN SYSTEM DIAGNOSIS | ||
|---|---|---|
| CONDITION | POSSIBLE CAUSES | CORRECTION |
| HORN SOUNDS CONTINUOUSLY | 1. Steering wheel, steering column, horn switch or Steering Control Module (SCM) damaged. | 1. Inspect and repair as necessary in accordance with service information. |
| 2. Horn switch sense circuit shorted to ground or to return circuit. | 2. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. | |
| 3. Horn switch sense circuit shorted in SCM or in Cab Compartment Node (CCN). | 3. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. | |
| 4. Horn switch shorted. | 4. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. | |
| 5. Horn control output circuit shorted to voltage. | 5. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| 6. Horn control output circuit shorted to Totally Integrated power module (TIPM). | 6. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| HORN SOUNDS INTERMITTENTLY AS THE STEERING WHEEL IS TURNED | 1. Steering wheel, steering column, horn switch or Steering Control Module (SCM) damaged. | 1. Inspect and repair as necessary in accordance with service information. |
| 2. Horn switch sense circuit intermittent short to ground or to return circuits. | 2. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| 3. Horn switch shorted. | 3. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| 4. Horn switch sense circuit intermittent short in SCM. | 4. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| HORN DOES NOT SOUND | 1. Steering wheel, steering column, horn switch or Steering Control Module (SCM) damaged. | 1. Inspect and repair as necessary in accordance with service information. |
| 2. Horn switch sense circuit or return circuits open. | 2. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| 3. Horn switch open. | 3. Inspect and test wiring and harness connectors and test horn switch function and repair as necessary. | |
| 4. Horn switch sense circuit or return circuits open to SCM or CCN. | 4. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| 5. Horn control output circuit open. | 5. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| 6. Horn control output circuit open in TIPM. | 6. Using a scan tool, check for DTC. Diagnose and repair in accordance with service information. If no DTC is present, inspect wiring and harness connectors and repair as necessary. | |
| 7. Ground circuit open. | 7. Inspect and test wiring and harness connectors and repair as necessary. | |
| 8. Horn open. | 8. Test horn switch function and repair as necessary. | |