LED dash light conversation mess
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Junior Member
Joined: Jun 2016
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From: Michigan
LED dash light conversation mess
Hey guys!
Well under the catagory of “can’t leave well enough alone” I decided to replace my rather dim instrument lights with LED. All went well with great improvement to the barrel gauges but the speedo and tach were unimpressive. I pull the cluster unit for further inspection only to find no clues. After reinstalling the unit I have NO gauge lights. Idiot lights work normally. I bypassed the dimmer with no result.
I have confirmed proper ground. Also using an outboard 12 VDC power source found the lights work fine. It appears that there is no power from the gang plug to the unit it’s self. Checked the main fuse. Good. Is there a relay or hidden inline fuse? Any help or idea be great appreciated! Thanks in advance!
Well under the catagory of “can’t leave well enough alone” I decided to replace my rather dim instrument lights with LED. All went well with great improvement to the barrel gauges but the speedo and tach were unimpressive. I pull the cluster unit for further inspection only to find no clues. After reinstalling the unit I have NO gauge lights. Idiot lights work normally. I bypassed the dimmer with no result.
I have confirmed proper ground. Also using an outboard 12 VDC power source found the lights work fine. It appears that there is no power from the gang plug to the unit it’s self. Checked the main fuse. Good. Is there a relay or hidden inline fuse? Any help or idea be great appreciated! Thanks in advance!
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Joined: Jun 2013
Posts: 2,120
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From: Australia
Hey guys!
Well under the catagory of “can’t leave well enough alone” I decided to replace my rather dim instrument lights with LED. All went well with great improvement to the barrel gauges but the speedo and tach were unimpressive. I pull the cluster unit for further inspection only to find no clues. After reinstalling the unit I have NO gauge lights. Idiot lights work normally. I bypassed the dimmer with no result.
I have confirmed proper ground. Also using an outboard 12 VDC power source found the lights work fine. It appears that there is no power from the gang plug to the unit it’s self. Checked the main fuse. Good. Is there a relay or hidden inline fuse? Any help or idea be great appreciated! Thanks in advance!
Well under the catagory of “can’t leave well enough alone” I decided to replace my rather dim instrument lights with LED. All went well with great improvement to the barrel gauges but the speedo and tach were unimpressive. I pull the cluster unit for further inspection only to find no clues. After reinstalling the unit I have NO gauge lights. Idiot lights work normally. I bypassed the dimmer with no result.
I have confirmed proper ground. Also using an outboard 12 VDC power source found the lights work fine. It appears that there is no power from the gang plug to the unit it’s self. Checked the main fuse. Good. Is there a relay or hidden inline fuse? Any help or idea be great appreciated! Thanks in advance!
Veteran Member
Joined: Mar 2016
Posts: 1,333
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From: North Carolina
I have confirmed proper ground. Also using an outboard 12 VDC power source found the lights work fine. It appears that there is no power from the gang plug to the unit it’s self. Checked the main fuse. Good. Is there a relay or hidden inline fuse? Any help or idea be great appreciated! Thanks in advance![/left]
Veteran Member
Joined: Jan 2012
Posts: 14,577
Likes: 10,773
From: France
Almost certainly one of the copper slightly sprung connectors on the multiplug is not making contact properly. In your case the 12 volt feed to the lights. It is very easy to get these bent out of their proper place when replacing the multiplugs into the back of the unit.
The main gauge lights have small green filters which are best removed completely, but you have to separate the front plastic piece that carries the lenses from the instrument pack itself to get at them. Then your LEDs, or 5 watt push fits in place of the 2 watt originals, will give good illumination.
The main gauge lights have small green filters which are best removed completely, but you have to separate the front plastic piece that carries the lenses from the instrument pack itself to get at them. Then your LEDs, or 5 watt push fits in place of the 2 watt originals, will give good illumination.
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Junior Member
Joined: Jun 2016
Posts: 10
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From: Michigan
Thanks for the reply. I metered the power pin on the connector and there is no power. Fuse is good. There must be additional fuses or a relay that is bad. Dash unit works fine when removed and then powered up. Again it’s only the gauges idiot light work fine.
Veteran Member
Joined: May 2010
Posts: 4,638
Likes: 2,583
From: Vic Australia
There is only 1 fuse main fuse panel no7 for all dash/console/radio lights.
If the centre console and gear selector lights are working then the fuse is good.
There are 3 outputs on the dimmer check you have the wires in the correct position, the Red/White wires are the outputs, Red/Blue is 12v input.
If the centre console and gear selector lights are working then the fuse is good.
There are 3 outputs on the dimmer check you have the wires in the correct position, the Red/White wires are the outputs, Red/Blue is 12v input.
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