GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Gage cluster randomly goes out

Old 10-17-12, 07:19 PM
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GGlover
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Default Gage cluster randomly goes out

Anyone had this happen? My car has only done it 2 times now, but it sucks when it happens because I have no clue how fast I'm going.

Anyone know what might cause this?
Old 10-18-12, 07:49 AM
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SC400slide
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Battery cables? Does all power go away when gauge cluster blacks out?
Old 10-18-12, 08:00 AM
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jcat_350
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as these cars get older, the components are bound to fail. Since you're saying you don't know how fast you're going, I'll assume that the needles drop to zero during this event. This could mean loose connections behind the cluster, failing vehicle speed sensor, or electrical issues.

If the backlighting is all that's dropping off, it could be the CCFL rings that light up the gauges going bad as well.
Old 10-18-12, 10:19 AM
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Originally Posted by SC400slide
Battery cables? Does all power go away when gauge cluster blacks out?
Power is good. Optimum battery with clean terminals. Just the backlight to the cluster


Originally Posted by jcat_GS3
as these cars get older, the components are bound to fail. Since you're saying you don't know how fast you're going, I'll assume that the needles drop to zero during this event. This could mean loose connections behind the cluster, failing vehicle speed sensor, or electrical issues.

If the backlighting is all that's dropping off, it could be the CCFL rings that light up the gauges going bad as well.
It's only happened at night both times so I haven't been able to see the needle. I think it's the CCFL rings you are talking about. I'll wait for it to do it again and try to get behind the cluster. Do you know if that is a pain to get out?
Old 10-18-12, 10:35 AM
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jcat_350
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Originally Posted by GGlover
Power is good. Optimum battery with clean terminals. Just the backlight to the cluster




It's only happened at night both times so I haven't been able to see the needle. I think it's the CCFL rings you are talking about. I'll wait for it to do it again and try to get behind the cluster. Do you know if that is a pain to get out?
there's a write up on it here somewhere...another member (I think search Vadim540i) changed the colored film on it but it shows how to take the cluster out and get it apart.

My bet is if the needles still work (keep a flashlight in the car) it's probably a loose connection as I've never seen the CCFL rings go out.
Old 10-18-12, 02:57 PM
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michal5000
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Originally Posted by GGlover
I'll wait for it to do it again and try to get behind the cluster. Do you know if that is a pain to get out?
Not sure if it'll help you, but this is how the CCFL are fitted in the cluster (they are those white pipes outlining the gauge faces):




In my case there was no need to remove them, but from what I saw it may be kinda difficult... The main question (to which I don't know the answer) is if you can remove the large white plastic part supporting faces, CCFL's and all the stuff without removing the needles.

Also, if all three CCFL's are always dropping off simultaneously, I suppose the problem are not the CCFL's themselves but rather some power connection.
Old 10-18-12, 08:33 PM
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Thanks guys. I'll refer back to these if/when it happens again.
Old 10-19-12, 08:12 AM
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jcat_350
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yeah, like I said, I don't think I've ever heard of the CCFL tubes going bad on these...there's probably a loose connector at the back of the cluster.
Old 10-19-12, 09:56 AM
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Originally Posted by michal5000
Not sure if it'll help you, but this is how the CCFL are fitted in the cluster (they are those white pipes outlining the gauge faces):




In my case there was no need to remove them, but from what I saw it may be kinda difficult... The main question (to which I don't know the answer) is if you can remove the large white plastic part supporting faces, CCFL's and all the stuff without removing the needles.

Also, if all three CCFL's are always dropping off simultaneously, I suppose the problem are not the CCFL's themselves but rather some power connection.
WOW looks like your gs is overheating in the first pic, J/K it looked weird though.
Old 10-19-12, 12:21 PM
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Originally Posted by lextout
WOW looks like your gs is overheating in the first pic, J/K it looked weird though.
I agree, it looks like this
Actually - it is not exactly GS. Look at the speedo
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