Default no lighting behind dash...help?
Thread Starter
Pro
Joined: Jul 2010
Posts: 532
Likes: 1
From: new york city ny
Default no lighting behind dash...help?
I am not getting any illumination of my speedo/tach. The center console lights work fine.
All gauges are functioning, and circuit boards look fine....any ideas?
S.
ps. Car is 1981 Vette.
All gauges are functioning, and circuit boards look fine....any ideas?
S.
ps. Car is 1981 Vette.
Last edited by scyzoryk23; Feb 12, 2011 at 10:57 AM.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
There is a grounding wire running from the backside of the speedo/tach housings to the left/front door pillar. The wire could be broken or the connection could be corroded. The easiest way to test for this problem is to get a length of wire, connect one end to a known good grounding point, and touch the other end to the speedo/tach housing (with the ignition in the ON position). If you have a bad ground on that system, the lights should work when you hook up the 'dummy' ground wire.
Last edited by 7T1vette; Feb 12, 2011 at 03:45 PM.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
7t1 is right.. just go to the connector on the back of the cluster. From the picture below, where the number 4 wire is located, run a jumper to it.
You should also check to make sure you have power on the number 10 wire. No power, then you have an issue somewhere else.
18243
You should also check to make sure you have power on the number 10 wire. No power, then you have an issue somewhere else.
18243
