Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

Electrical Problem

Thread Tools
 
Search this Thread
 
Old Oct 2, 2009 | 09:26 AM
  #1  
Sapper-0503's Avatar
Sapper-0503
Thread Starter
|
Advanced
Joined: Oct 2009
Posts: 69
Likes: 0
From: Sanford, NC
Default Electrical Problem

07 Dyna FXDB StreetBob
Experiencing intermittent flickering of speedometer backlight while in operation. This is almost always followed by an engine shutdown. When attempting to restart the engine, application of the engine start button results in a "snap" noise followed by complete electrical failure.
  • No recent work has been performed prior to this problem.
  • Battery tests good with a full charge
  • Alternator tests good
  • Fuses test good
  • battery connectors clean and tight
The system returns to normal everytime I remove and reseat the battery. I did notice a small cut in the positive wire behind the battery box. Could this be the problem?
 
Reply
Old Oct 2, 2009 | 10:26 AM
  #2  
Nightking's Avatar
Nightking
Banned
Joined: Aug 2009
Posts: 771
Likes: 2
From: Hurricane,WV
Default

It does sound like you have some current flowing through the frame at times. I would definitely fix the nick in the positive cable. You haven't by chance lowered the rear end of the bike recently, have you?
 
Reply
Old Oct 2, 2009 | 12:20 PM
  #3  
Sapper-0503's Avatar
Sapper-0503
Thread Starter
|
Advanced
Joined: Oct 2009
Posts: 69
Likes: 0
From: Sanford, NC
Default

No modifications at all. I just ran a Speedometer Self Diagnostics and got a DCT of "B1007 Ignition Line Overvoltage Instruments " , I cant seem to find any information on what this mean exactly though. Any insight would be greatly appreciated.
 
Reply
Old Oct 2, 2009 | 01:29 PM
  #4  
Sapper-0503's Avatar
Sapper-0503
Thread Starter
|
Advanced
Joined: Oct 2009
Posts: 69
Likes: 0
From: Sanford, NC
Default

I am assuming this indicates I have a short in the speedometer backlight wire since it is the only part of the speedometer faulting and the ignition start causes the overvoltage shutdown of the entire electrical system.
 
Reply
Old Oct 7, 2009 | 07:30 AM
  #5  
Sapper-0503's Avatar
Sapper-0503
Thread Starter
|
Advanced
Joined: Oct 2009
Posts: 69
Likes: 0
From: Sanford, NC
Default

I removed my tank console and adjusted the wiring harness underneath. Cleared the Speedometer Self Diag event and re-ran a test. Everything turned out OK this time around.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
chriswillrise
Electrical/Lighting/Alarm
1
Sep 21, 2016 08:37 PM
voudoujoe
Electrical/Lighting/Alarm
2
Oct 21, 2014 08:18 PM
parrettdl
Dyna Glide Models
2
Sep 7, 2014 01:38 PM
chiro22
Sportster Models
1
Oct 8, 2013 03:32 AM
mac1313
Softail Models
22
Feb 4, 2013 12:58 PM




All times are GMT -5. The time now is 04:42 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE