Question about 2004 Harley Davidson FXD - FXDI Dyna Super Glide

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Help wiring up digital speedo to a 2004 dyna sport.

PleaseI bought a Diamon Digital speedo/tach to replace the stock speedo. I cannot get the wiring to hook up right. Can you please tell me what wires hook up to what wires. The digital speedo wires are red-12 volt with key on. black-ground. yellow-tach signal. purple-high beam indicator. orange-left turn green-right turn blue-neutral gray-oil warning light white/red-engind indicator white/blue-optional remote mount function switch white-output speed signal brown-night dimming can you please tell me what wires on the dyna speedometer harness correspond with the wires listed above. I really need help. describe your problem...

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Hi Larry, I would give the nice folks at Diamond Digital a call. Good luck

Posted on May 13, 2015


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Posted on Jan 02, 2017


SOURCE: lights bulbs in tach and speedo

The tach and speedo are their own separate unit.  There is no changeable light bulb.  You may want to check your light and instrument fuses.  If those are working, I would remove the outer fairing and check the connections to your tach and speedo.

Posted on Apr 14, 2009

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SOURCE: speedometer/tach combo i bought from autometer cant get the speedometer or odometer to work the back of the autometer has 12 places for wires but my factory gauge only has 10.autometer has not been an

your spedometer should be hooked up via cable off the front wheel. not through wiring but use your volt meter to ensure the wire coloring didnt change in the makes of bikes

Posted on Apr 21, 2013

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I have a 1989 GMC C1500 1/2 ton pickup truck with a rebuilt tranny and an aftermarket 350 small block engine. The total mileage counter and the speedo doesnt work. We bought the truck used at an auction...

You have so many problems but not much to work with. Let's try something to help you out.
1. Instrument panel is it Analog or Digital
2.For speedo and tach do you have a speedo cable attach to the cluster?
If it's with speedo cable. Inside the transmission, there is a plastic gear could be worn. And the cable at the cluster's end could be stripped or not install properly.
If it's with the digital cluster the speedo works with a buffer module near the glove compartment (It convert the analog signal to digital signal for a digital cluster.
I could tell you more but need too many info.
There is many instrument panel depends on the options.
See options: links

Hope it helps.


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1. There is more ground than only one and there more + wires at cluster panel. I will have to check those circuit and finally find the problem.

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