Speedo/tach gauge question...
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Road Warrior
Joined: Oct 2007
Posts: 1,916
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From: Sunshine State
Speedo/tach gauge question...
Hello guys! I just purchased a "used" custom HD combination speedo/tach part#70900070. Item was working perfectly when removed from a "totalled" Road King. I purchase this for my Road King but when plugged the cable to the "Data Link" plug on my RK in order to transfer the mileage from my ECM to the new gauge, I get no message on the new speedo/tach gauge. It was supposed to show the percentage of data copying then CHECK and then OK. I got no message at all, all I got was a red light on for 2-3 secs and that was it! Instructions read that the replacement speedometer will become locked to the ECM after 31.1 miles. Can someone tell if this can be reset or make to work on my bike?
Thanks to all who stops here and leave some advice, comments, sugestions!
Vickon
Thanks to all who stops here and leave some advice, comments, sugestions!
Vickon
Last edited by vickon; Feb 3, 2013 at 06:28 PM.
Moderator
Joined: Oct 2012
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From: Ft. Worth, TX
You need to be able to plug the speedo/tach into the ECM test port with a pigtail harness. Make sure you have the plug oriented correctly as it is easy to get it upside down (ask me how I know).
Outstanding HDF Member
Joined: Oct 2009
Posts: 2,488
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From: Maryland near DC
from what I understand about it is that it is that you can not use that speedo on another bike once it has been locked on the first bike...so if the speedo was on the original bike for more than 32 miles it was already "married" to that bike and can never be used on another bike...
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
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From: SE Michigan
from what I understand about it is that it is that you can not use that speedo on another bike once it has been locked on the first bike...so if the speedo was on the original bike for more than 32 miles it was already "married" to that bike and can never be used on another bike...
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
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From: East of the Sun, West of the Moon
from what I understand about it is that it is that you can not use that speedo on another bike once it has been locked on the first bike...so if the speedo was on the original bike for more than 32 miles it was already "married" to that bike and can never be used on another bike...
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
To the OP, the only time you see these diagnostic messages is when you first connect the device to the data port of the first bike. It will then read the mileage from the ECM, and embed it into the speedo eprom. So essentially what they've done is to help prevent the odometer fraud is located the mileage in 2 different places with the newer bikes. And if not mistaken, if you don't "marry" it to the bike within the first 200 miles, you're screwed because then the sync process will no longer work.
I like the fact that you can do it on your own now instead of ordering a speedo and have to wait 2-3 weeks to get it because HD has to do mileage reinstatement. This is still the case with the older bikes, 09-prior.
Last edited by UltraNutZ; Feb 4, 2013 at 08:37 AM.
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Outstanding HDF Member
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From: Pacific Northwest
It would be a piece of cake for the Moco to have made all speedo's inoperable unless they are loaded with mileage from the current machine. But that wouldn't be nearly as profitable, would it?
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Extreme HDF Member
Joined: Nov 2007
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From: East of the Sun, West of the Moon
The odo being married to a specific bike has everything to do with corporate profit and nothing to do with odo fraud.
It would be a piece of cake for the Moco to have made all speedo's inoperable unless they are loaded with mileage from the current machine. But that wouldn't be nearly as profitable, would it?
It would be a piece of cake for the Moco to have made all speedo's inoperable unless they are loaded with mileage from the current machine. But that wouldn't be nearly as profitable, would it?
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,171
From: SE Michigan
Well, I think it can be both preventing odo fraud and a corporate profit issue. I dont have a problem with corporate profits as many on this forum do. ( 
)
I think its a lot of overhead to be d1cking around with odo's, and frankly there were a lot of shenanigans with the old system.
Personally when I bought it, I understood it would be staying with the bike when I sold it. (2 bikes, but now I have a Road Glide, it will no longer be an issue for me)
)I think its a lot of overhead to be d1cking around with odo's, and frankly there were a lot of shenanigans with the old system.
Personally when I bought it, I understood it would be staying with the bike when I sold it. (2 bikes, but now I have a Road Glide, it will no longer be an issue for me)
Last edited by Keithhu; Feb 4, 2013 at 11:39 AM.