Bus Er Signal
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1st Gear
Joined: May 2010
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Bus Er Signal
So sometimes my 2004 Sportster won't start and "bus er" code shows up. The book says this indicated a problem in the serial data port but I can't figure out what the heck that means!! Anyone have any suggestions?? Surely appreciate it.
Last edited by gardengirl; May 13, 2010 at 08:57 PM.
Thread Starter
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1st Gear
Joined: May 2010
Posts: 5
Likes: 0
Yea, but it won't start. If I mess with it for a while I can get it going. I hold in the reset button on the odometer and get it back to showing the mileage. The other thing is sometimes the speedo won't work at all. If I turn the engine off then back on it will usually work. Maybe the speedometer is crap.
Ultimate HDF Member
Joined: Jan 2008
Posts: 7,476
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From: Republic of Texas
That burnt crap is just depressing. Makes me want to go to the garage and reassure the girls it will not happen to them.
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sorry dude, i use the pic as a reminder to keep pushing forward on it. now no matter what i change or do to it , she'll never look as bad as she did after the fire LOL
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Joe Kucinski
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From: Boynton Beach, FloriDuh
The major electronic components on your bike, the ICM (computer), the TCM (turn signal control module) and the instruments (speedo), communicate via the Serial Data Bus. The first place to start, is to unplug all connectors between those modules, clean the contact pins, coat the contacts with some dielectric grease, and reconnect them.