ok folks, here is my problem for Friday, I have a 2014 IC ce bus that the horn honks on after you de-activate the NCLB module. it honks CONSTENTLY until you either turn the parking/ headlights on or unplug it. no codes , no lights no explanation! Body controller does all of the functions on the horn now and the dealership has not found a root problem, in fact it started working and now they cant get it to malfunction. 1 done been there and done that and it will happen again until the Gremlin is cast out. I hate return trips to the dealership for "same thing again" problems.as always , your expertise is appreciated THANKS!
when you press the button for the NCLB your hear the buzzer and the little red light comes on dash, I know the horns will blow if you don't disengage that system , problem with the button itself at the rear
OEM trained in wiring and all engine platforms for over 20 years
horn over re-acting
Posted - 12/10/2021 : 07:40:37 AM
