1983 GL1100A LCD problem


Information and questions on GL1100 Goldwings (1980-1983)
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WINGER3
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1983 GL1100A LCD problem

Postby WINGER3 » Sat Oct 06, 2012 12:23 am



Hi all you wingers, I just joined the site after checking it out, it is a real good one. I have been rideing bikes for about 40 years and just bought a GL1100A that has seen very little road time for a long time, this is my 3rd Wing, 1st was new 85 1200A, 2nd new 94 1500I. what great bikes. Now to my problem, my LCD fuel gauge does not give me a reading, alltho when first turn on key the dash light up to show all gauges are working OK, but when I start it up the fuel gauge is blank. After playing with the key pad I found that as long as I hold down two of the trip pad keys, the fuel gauge will show up and register the right amout of fuel, also the Tach bar scale and RPM number gauge will stay on and bright as new, as they other wise slowly fade out. I hope someone else has seen this and know the cure as it is driving me *&^+ nuts, I have a feeling it might me a ground problem, but don't want to take it all aprt unless I have to. I know this is long and windy but I know from reading almost every post on this site about this bike, there is help out there. Thanks Bob :?: :( :)


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virgilmobile
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Re: 1983 GL1100A LCD problem

Postby virgilmobile » Tue Oct 09, 2012 10:26 am

I don't have any experiance with this but the first thing would be to seperate the 2 parts of the system.
Download the manual and test the fuel float sending unit to see if it varies the indicator or has the correct voltages on the wires.
I would guess that if it appears to be working,the other area is hairline cracking on the PC board where the modules connect to the wiring harness.
You can apply a touch of pressure on the plugs in different directions to see if the display starts to work.
I found this on my radio plug.

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WINGER3
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Re: 1983 GL1100A LCD problem

Postby WINGER3 » Wed Oct 10, 2012 12:06 am

Thanks for the reply to my problem, the fuel sending unit is good. The LCD itself is the where I have the problem, I do not want to remove the fairing to get at the LCD dash panel if I can help it. Yes I think it could be a bad board in the key pad that is causing the problem, but that is wired into the dash unit and requires removel of the fairing to replace it.

I have searched this site's manuals and the internet and can not find a schematic for the LCD dash system, since this is a one year only system there just does not seem to be one available anywhere. I have whent thrue all of at least 18 fuse's and all contacts and fuse's are good. Untill I can find a schematic on this system I'm just going to ride it as is till then. Thanks Bob :( :|
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WingAdmin
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Re: 1983 GL1100A LCD problem

Postby WingAdmin » Wed Oct 10, 2012 10:50 am

I don't know that Honda ever published schematics for the LCD systems for any year Goldwing. They're looked upon as "black boxes" by Honda, at least in terms of mechanics' intended interaction with them. If it doesn't work correctly, the manuals just instruct you to replace it.

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WINGER3
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Motorcycle: current 2005 GL1800ABS previous GL1200A GL1500K GL1100A CB350 GL650I VFR1000 ST1100 GL1200A GL1500I + many other brands

Re: 1983 GL1100A LCD problem

Postby WINGER3 » Wed Oct 10, 2012 11:56 am

Hi Leader, thanks for heads up, I kind if expected that. There are a couple of key pads for sale on eBay that I might just buy to see if it will fix my unit, it's worth a try for the price, these units are not available new so have no other choice's, at least it has no effect on the running of the bike or any other systems. Thanks Bob :|
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PatrickB
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Re: 1983 GL1100A LCD problem

Postby PatrickB » Mon Oct 15, 2012 7:56 pm

I had a similar situation with my fuel gauge. I disconnected my battery to solder the 3 yellow wires by the battery.When I reconnected the battery my fuel gauge stayed on even with key out. I thought I did something wrong.I then disconnect the batt. ground for a few hours.When I reconnected everything was back to normal.Maybe it reset itself. I dont know.Wont hurt to give a try.

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WINGER3
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Location: Orange, California
Motorcycle: current 2005 GL1800ABS previous GL1200A GL1500K GL1100A CB350 GL650I VFR1000 ST1100 GL1200A GL1500I + many other brands

Re: 1983 GL1100A LCD problem

Postby WINGER3 » Mon Oct 15, 2012 11:37 pm

PatrickB wrote:I had a similar situation with my fuel gauge. I disconnected my battery to solder the 3 yellow wires by the battery.When I reconnected the battery my fuel gauge stayed on even with key out. I thought I did something wrong.I then disconnect the batt. ground for a few hours.When I reconnected everything was back to normal.Maybe it reset itself. I dont know.Wont hurt to give a try.


Thanks for the info, It's worth a try when I get back. The "BOSS" and I are flying to Boston tomorrow, picking up a cage to spend 2 weeks seeing the color change and old covered bridges thrue-out New England, one of the last things on Her bucket list (well almost). I will give it a try, but I think that the key pad is going to be the end problem. Thanks Bob :)


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