Flatliner1775
Member
:34:I noticed that the IAC is running when i turn the key off and is draining my battery. Can this be a short in the IAC itself?
Maybe the 2007 Sporty uses the system relay in a different way than the Dyna models like mine does (?)
On my bike it is physically impossible for a short in the system relay to boot the ECM, without also having the Kill switch in RUN and the ignition turned on. Looking at my schematics, the IAC stepper is driven off the ECM and not the system relay. There is no telling what they did different from a 2007 Sporty to a 2009 Dyna. ..
It sounds like you nailed down your problem and saved yourself a bunch of time & money. A leaky system relay WILL drain a battery. I have to print and save that tip.