Circuit 150Z
GROUNDSBefore checking the ground circuit from the horn all the way to the ground stud, check the circuit from the splice pack to ground by testing some of the other subsystems grounded by the same splice pack. If the other subsystems function properly, it is most likely that the path from the splice pack to ground is good (or at least one of the paths is good with redundantly ground splice packs).
LOCATION:
Connects forward lamp splice pack cavity E to left forward lamp ground point B.
TYPE:
Black 14 gage wire
REPAIR:
Check for OPENS.
Repair as needed.
If this component is good go to the next item indicated on the Symptom Chart.