Short in the ACC pole
Our motorhome 2002 Newmar Mountain Aire, 8.3 cummins has a short in the Accessory side of the ignition circuit. When you replace the fuse, and turn the key to ON- or - Acc, the fuse blows. The ign...
Forum Discussion
Tom/Barb wrote:dougrainer wrote:
Lets get clear.
1. You state the IGN system. You mean it does NOT short until you turn the key all the way to engage the starter?
2. The Ign controlled COACH systems including Dash Area(Back up and so on) all work even when the other fuse blows? Doug
The key switch excites both the ACC and the IGN at the same time. when the key is turned to either position, then you turn to IGN and continued to turn to crank.
the fuse blows as soon as either position is reached.
this is why I say there are two discrepancies.
Yes and No. When you turn to IGN(NOT the spring loaded Starter position) it activates Both ACC side and Ign side circuits. BUT, when just going to ACC, that position activates fewer circuits than the IGN side, BUT, will still activate the 1 circuit that blows the fuse. ONE problem, for both sides. Once you find and fix the short, BOTH sides will work and not blow the fuse. Lets wait until you do your ECU testing. So, you refuse to doublecheck the batteries? Doug
