Thank you for your help. I am a automotive technician, and I rebuilt the transmission on this forklift as a favor for my neighbor, due to the forklift technician that came out not being able to figure out what was wrong with the transmission. But now I am asked to look at this warning light and I don't have a way to scan for any faults, and I don't know the parameters that cause the light to come on. There is 2 black wires back there that someone jumped together is that possibly the wire your referring to? Again thanks for your help.