Horn System
WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
In most cases, any problem involving continually sounding horns can be quickly alleviated by removing the fuses from the Totally Integrated Power Module (TIPM).
The most reliable, efficient and accurate means to diagnose the horn system requires the use of a scan tool and the proper diagnostic procedure information. For complete circuit diagrams, refer to SYSTEM WIRING DIAGRAMS .
HORN SYSTEM DIAGNOSIS TABLE
| CONDITION | POSSIBLE CAUSES | CORRECTION |
|---|---|---|
| BOTH HORNS INOPERATIVE | 1. Faulty horn switch. | 1. Refer to SWITCH, Horn for the proper diagnosis and testing procedure. Replace the horn switch or repair the open horn switch circuit, if required. |
| 2. Faulty horns. | 2. Refer to HORN for the proper diagnosis and testing procedure. Replace the horns or repair the open horn circuit, if required. | |
| ONE HORN INOPERATIVE | Faulty horn. | Refer to HORN for the proper diagnosis and testing procedures. Replace the horn or repair the open horn circuit, if required. |
| HORN SOUNDS CONTINUOUSLY | Faulty horn switch. | Refer to SWITCH, Horn for the proper diagnosis and testing procedure. Replace the horn switch or repair the shorted horn switch circuit, if required. |
WARNING:
Disable the airbag system before attempting any steering wheel, steering column, seat belt tensioner, side airbag or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable. Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury.