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Instrument cluster issue 04 620

Started by Goggles Pizano, August 20, 2009, 02:56:23 PM

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Goggles Pizano

August 20, 2009, 02:56:23 PM
My high beam, turn signal and fuel lights turn on when I switch my high beam on.  I have an HID light that comes on with the low beam, the high beam is an incandescent lamp.  I may have caused this issue by turning on the low beam before the bike was running (lamp flickers trying to get the HID to light) or I may have done this when I did the "maint" reset.  I checked fuses, all good.  Turn signals still work.  Fuel light is also triggering the "fuel" script on the temp gauge.

Any thoughts or fixes?

ducpainter

#1
August 20, 2009, 03:09:15 PM
The 620s had internal corrosion issues as did all the bikes of that vintage.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Goggles Pizano

#2
August 20, 2009, 03:17:59 PM
It was fine yesterday.  Only has 6700 miles and been in the rain once.  Only been washed twice now that I think about it and that was 2 years ago.

ducpainter

#3
August 20, 2009, 03:22:11 PM
Doesn't cost anything to pull the housing and look.

That's all I got.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Goggles Pizano

#4
August 20, 2009, 03:24:33 PM
Anything I should avoid touching or can screw up by opening this up?  Just don't want to disable the bike by screwing something up with the immobilizer or some other random "ha! shouldn't have done that!" ducati might have thrown in there...

ducpainter

#5
August 20, 2009, 03:53:53 PM
Quote from: Goggles Pizano on August 20, 2009, 03:24:33 PM
Anything I should avoid touching or can screw up by opening this up?  Just don't want to disable the bike by screwing something up with the immobilizer or some other random "ha! shouldn't have done that!" ducati might have thrown in there...
I'd disconnect the battery negative before touching it.

Otherwise just don't force anything. ;)
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Goggles Pizano

#6
August 21, 2009, 02:40:11 PM
Took the easy way out of the diagnostic.  I plugged the old regular incandescent H4 bulb back in and the problems went away.

BUT you've raised an eyebrow of concern with this corrosion issue you speak of...  Would it behoove me to take apart the cluster put in a silica gel packet and seal the unit up with silicone?  Looking to prevent the corrosion opposed to dealing with it when it happens.

ducpainter

#7
August 21, 2009, 02:55:06 PM
Quote from: Goggles Pizano on August 21, 2009, 02:40:11 PM
Took the easy way out of the diagnostic.  I plugged the old regular incandescent H4 bulb back in and the problems went away.

BUT you've raised an eyebrow of concern with this corrosion issue you speak of...  Would it behoove me to take apart the cluster put in a silica gel packet and seal the unit up with silicone?  Looking to prevent the corrosion opposed to dealing with it when it happens.
The way the factory has it didn't work.

I'd be inclined to try it. I'd check to see how warm it gets first though. You don't want to create a problem correcting another.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Goggles Pizano

#8
August 21, 2009, 05:10:11 PM
Well, it got worse...  Now it does not matter what bulb is in or if it is high or low beam.  The turn signal and low fuel lights are always on and the high beam indicator no longer works at all.

I've pulled the covers off the instrument cluster and see no corrosion (nothing to corrode there) every thing else seems it would take some force to open up. You already covered that, lol.

Where should I be looking for corrosion (connector pins all look good) and how do I take this apart further without forcing it?

ducpainter

#9
August 21, 2009, 05:12:52 PM
Quote from: Goggles Pizano on August 21, 2009, 05:10:11 PM
Well, it got worse...  Now it does not matter what bulb is in or if it is high or low beam.  The turn signal and low fuel lights are always on and the high beam indicator no longer works at all.

I've pulled the covers off the instrument cluster and see no corrosion (nothing to corrode there) every thing else seems it would take some force to open up. You already covered that, lol.

Where should I be looking for corrosion (connector pins all look good) and how do I take this apart further without forcing it?
I have no FHE on disassembly.

I suggest you pm 2001 Chromo.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Goggles Pizano

#10
August 21, 2009, 05:15:15 PM
Quote from: ducpainter on August 21, 2009, 05:12:52 PM
I have no FHE on disassembly.

I suggest you pm 2001 Chromo.

Will do, TY for the help so far DP  [thumbsup]

Bones

#11
August 21, 2009, 05:43:25 PM Last Edit: August 21, 2009, 05:45:01 PM by Bones
I'm thinking the problem may be with the HID system. I would doublecheck all the wiring including the connectors inside the headlight housing. maybe the heat in the housing melted some of the wires and is causing an arc or a short. if you pulled the harness off the back of the gauge housing recently, I would double check you didn't bend any of the connector pins on the back of the housing ( I did that yesterday and caused a bunch of probs with the signals and ignition)
I'm a loner, Dottie...a rebel...

Goggles Pizano

#12
August 21, 2009, 06:30:22 PM
HID system is gone now, pins have been checked (good call and ty  [thumbsup]) swapped high beam switch at suggestion of wife (had a scratched up spare from an earlier lay down)  Nothing has changed.  No HB indicator at all, Lo Fuel and turn signal indicators are always on regardless of actual beam selected.

Bike seems to run fine so far, just hate to get on the highway and have something pop up and REALLY don't want to spend the money on a new unit.

2001cromo

#13
August 21, 2009, 08:28:54 PM
In terms of taking the gauges apart. You'll get to a point Usually after the outer housings are removed and you're left with a PC board and some needles. That's as far as I'd go if I were you.

to take apart it goes in this basic order

1) remove phillips head screw(s) from back of gauges (some years had 1 screw some had 2)
2) remove phillips head screw from bottom (via back) of the idiot lights
3) under the idiot light cover that you just removed is a torx screw that needs to come out
4) now that all the screws which hold the 2 halves of the gauges are out, you can carefully separate (carefull with the rubber gasket in between the 2 halves)
5) the PC board is held in with either 1 screw and/or just plastic snaps that you can carefully separate from the outer edges of the PC board.

** be carefull of the needles and what position they're in and keep them in the same position **

with this much removed you should be able to see if things don't look right. IE corrosion or part failure might be visable. We had one that the actual chip slid off the board so that was pretty clear what the problem was. (or better yet take pictures and post)

goes back together in reverse order. maybe use some type of sealant on the rubber gasket. as the goal here is to keep out moisture.

I personally think the overall design is crap (the achilles heel of that vintage Duc) and will become a bigger problem in the next few years. I really hope I'm wrong and I'm sorry to hear about your troubles.

2001cromo

#14
August 21, 2009, 08:32:45 PM
just re-read the PM
you might also check the wiring at the headstock and see if there's any chewed wires there or at the back where the harness plugs into the gauges. Maybe (hopefully) it's only a short and not an issue with the gauges.
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