HORN Horn Wiring Diagram for GMC Suburban C2500 1994 List of elements for Horn Wiring Diagram for GMC Suburban C2500 1994:(on sheet metal,(right innerConvenience center (under left side of i/p)Fuse blockG100 above left headlamp)G101 fender, near battery)Horn relayHorn switchHot at all timesLeft horn (at front of vehicle)Park lps fuse 20aRight horn (at front of vehicle)Steering wheelW/v22 onlyANTI-LOCK BRAKESHEADLIGHTSINSTRUMENT CLUSTERENGINE PERFORMANCEDEFOGGERSCOMPUTER DATA LINESCRUISE CONTROLGROUND DISTRIBUTIONEXTERIOR LIGHTSHORNINTERIOR LIGHTSPOWER MIRRORSRADIOPOWER DISTRIBUTIONPOWER WINDOWSPOWER DOOR LOCKSTRANSMISSIONPOWER SEATSWARNING SYSTEMSTRUNK, TAILGATE, FUEL DOORWIPER/WASHER