Section 58 (Horn System (Service Information) 500 - Except Electric): Operation: Operation

WARNING: This page is about a different car, the 2015 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.

The horns operates on battery current received from a horn relay located in the Power Distribution Center (PDC) through a fuse also located in the PDC. The vehicle operator can control typical horn system signaling through the horn switch within the hub of the steering wheel. When the upper surface of the Driver AirBag (DAB) trim cover is depressed, it provides a hard wired ground path to the control coil of the horn relay. The horn system circuit is designed so that the system will remain operational, regardless of the status of the ignition switch.

The hard wired circuits between components related to the horn system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate SYSTEM WIRING DIAGRAMS article . The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.