Dash Lights - Chevy Nova Forum
Visit our sponsor, National Nostalgic Nova
 
Steve's Nova Site is an automotive enthusiast website dedicated to the 1962 - 1979 Chevrolet Nova, Chevy II and Acadian automobiles. We work together to preserve, restore, drive, show, race and provide fellowship for these classic cars. This is one of the best places to find information about parts, rebuilding, restoration and racing. This website is not affiliated with GM, General Motors or Chevrolet in any capacity.

Go Back   Chevy Nova Forum > Non-Technical > 4th Generation Nova's


StevesNovaSite.com is the premier Chevrolet Nova Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
Old 3rd-September-2011, 01:02 AM   #1
1977Chad350
 
1977Chad350's Avatar

Title: Moderator
iTrader: (3)
Status: Offline
Join Date: Feb 2004
Location: panama city, fl
Nova(s): 1977 Nova 1978 Nova
Posts: 3,039
Dash Lights

I have what i thought everything wired up on the 78. But i guess im wrong my dash lighting doesnt work. but the seat belt light stays on. Ive checked the builbs and change cluster have a couple of extras. But the same thing. does any one know what wire powers the lighting for the dash and which one is the ground? pics will help a lot.

Thanks,
Chad
__________________
1978 Nova 2 door Gen V 454 crate engine 350th Transmission 8.5 10 bolt locker
1977 Nova 2 door coupe
  Reply With Quote
Sponsored Links
Advertisement
 
Old 3rd-September-2011, 10:18 AM   #2
kimrobertson
 
kimrobertson's Avatar

Title: Nova Guru
iTrader: (1)
Status: Offline
Join Date: Nov 2010
Location: Ephrata, PA
Nova(s): 79 Phoenix
Posts: 1,087
I couldn't figure out why mine didn't work. I checked all the wires that went to the clips that snapped into the printed circuit. I checked all the ground wires that screwed onto the dash. I replaced all the bulbs...Still no lights! FINALLY I took it apart again. The wires connect to metal clips that snap into the printed circuit. UNDERNEATH the clip makes contact with the copper on the printed circuit. I checked each one of these clips to make sure it was making good contact with printed circuit. I cleaned each contact point of contact. Finally the last one I checked (hardest to get to) was the problem. The clip had made too big an indentation on the printed circuit and wasn't making contact anymore. I cleaned the contact and bent the clip a little to make sure it made good contact. Then all the dash lights worked. Hope this helps.


Quote:
Originally Posted by 1977Chad350 View Post
I have what i thought everything wired up on the 78. But i guess im wrong my dash lighting doesnt work. but the seat belt light stays on. Ive checked the builbs and change cluster have a couple of extras. But the same thing. does any one know what wire powers the lighting for the dash and which one is the ground? pics will help a lot.

Thanks,
Chad
  Reply With Quote
Old 3rd-September-2011, 12:07 PM   #3
Philip
 
Philip's Avatar

Title: Moderator
iTrader: (12)
Status: Offline
Join Date: Mar 2004
Location: Marana AZ 85653
Nova(s): 1977
Posts: 10,286
Power for the dash lights is through the head lamp switch, the tail lamp fuse and then the instrument panel fuse (Inst. LPS)


__________________
  Reply With Quote
Old 4th-September-2011, 04:33 AM   #4
1977Chad350
 
1977Chad350's Avatar

Title: Moderator
iTrader: (3)
Status: Offline
Join Date: Feb 2004
Location: panama city, fl
Nova(s): 1977 Nova 1978 Nova
Posts: 3,039
Sorry about the poor pictures I dont take many pictures. But there is two wires hanging from the steering and dash. One has the blue clip and the other has what looks like a inline glass fuse housing. I just saw your replies and ran out there and looked under the dash.


__________________
1978 Nova 2 door Gen V 454 crate engine 350th Transmission 8.5 10 bolt locker
1977 Nova 2 door coupe

Last edited by 1977Chad350; 4th-September-2011 at 09:28 AM.
  Reply With Quote
Old 4th-September-2011, 08:43 AM   #5
1977Chad350
 
1977Chad350's Avatar

Title: Moderator
iTrader: (3)
Status: Offline
Join Date: Feb 2004
Location: panama city, fl
Nova(s): 1977 Nova 1978 Nova
Posts: 3,039
I just went out to the car bad news is still no dash lights. I replaced the inst. lps fuse. The only wire I could find is the e brake. the one with the inline fuse ran to the acc/lighter and the one with blue sparked when i sent power to it. i noticed a yellow wire and a gray wire thin and side by side where cut on the steering wheel. Is there a power that comes from the engine bay for just the inst. lps? ps the head lights worh high/low, brakes, on the dash, bight signal works, turn signals work. Im thinking of trying to find a parts car where the wiring hasnt be hacked and using it if im lucky. I did a search and the only 12 circuit wiring for gm I can find is painless and it is a little to much for me in price.
__________________
1978 Nova 2 door Gen V 454 crate engine 350th Transmission 8.5 10 bolt locker
1977 Nova 2 door coupe

Last edited by 1977Chad350; 4th-September-2011 at 09:42 AM.
  Reply With Quote
Old 4th-September-2011, 10:02 AM   #6
Philip
 
Philip's Avatar

Title: Moderator
iTrader: (12)
Status: Offline
Join Date: Mar 2004
Location: Marana AZ 85653
Nova(s): 1977
Posts: 10,286
do the tail lights work?
__________________
  Reply With Quote
Old 4th-September-2011, 02:24 PM   #7
kimrobertson
 
kimrobertson's Avatar

Title: Nova Guru
iTrader: (1)
Status: Offline
Join Date: Nov 2010
Location: Ephrata, PA
Nova(s): 79 Phoenix
Posts: 1,087
On mine there are a grey & a yellow wire side by side that tie into the harness but are for the radio or maybe speakers.

Also on mine are 2 ground wires (black or very dark brown) that screw to the metal part of the dash. You might check them to make sure they are grounded good. One fastens right near where the e brake bolts to dash the other in the area just under the headlight switch.

Also, (you've probably already done this) you could play with the rehostat that controls the instrument light brightness on the headlight switch by turning it back and forth. Maybe you're on a dead spot or it's in the off position.

I too had turn signals, brake warning, seatbelt warning, gen light and bright indicator...just no instrument lights and it turned out to be 1 bad connection on the printed circuit. If all else fails, try my earlier post above.Hope you get it figured out!
  Reply With Quote
Old 4th-September-2011, 11:52 PM   #8
1977Chad350
 
1977Chad350's Avatar

Title: Moderator
iTrader: (3)
Status: Offline
Join Date: Feb 2004
Location: panama city, fl
Nova(s): 1977 Nova 1978 Nova
Posts: 3,039
I do have tail lights, but the previous owner of the 78 hacked not on the interior wiring a little, but the engine bay also. I wanna say other then the lights power wire from the firewall i have to have hooked to the battery to work. But the lights only come on if the key is on. I have a spare engine bay wiring harness from a 79 4door it was cut up when the last owner took the engine out. the engine runs has hei and alt works. I dropped the steering wheel and removed the cluster today. I pull the harness from the back of the cluster and i cleaned them to shine again. I notice the cluster looks great, but where the blue and green wire on the top left when you face the cluster. The printed circuit little strips where it contacts the harness isnt glued down any more. I also tryed another cluster that is in ruff shape and nothing happen.
__________________
1978 Nova 2 door Gen V 454 crate engine 350th Transmission 8.5 10 bolt locker
1977 Nova 2 door coupe
  Reply With Quote
Old 5th-September-2011, 03:04 PM   #9
1977Chad350
 
1977Chad350's Avatar

Title: Moderator
iTrader: (3)
Status: Offline
Join Date: Feb 2004
Location: panama city, fl
Nova(s): 1977 Nova 1978 Nova
Posts: 3,039
Is there a ground that connects to the cluster. One that is not it the wiring harness conector. The only thing I have hooked up to the cluster is the wiring harness. no speedometer cable is to sort with new transmission. I have a floor shifter so no wire running the park placement. Also If you have a picture of where the ground installs to the back of the cluster will help.
__________________
1978 Nova 2 door Gen V 454 crate engine 350th Transmission 8.5 10 bolt locker
1977 Nova 2 door coupe
  Reply With Quote
Old 6th-September-2011, 06:45 PM   #10
Philip
 
Philip's Avatar

Title: Moderator
iTrader: (12)
Status: Offline
Join Date: Mar 2004
Location: Marana AZ 85653
Nova(s): 1977
Posts: 10,286
The ground is in the harness connector on my 77 but in 78 it appears from the schematic to be in a separate connection.
Click here and you can scroll through both the 77 and 78 schematics. Print them out so you can take them out to the car with you.

With the cluster out check the lamp wire terminal on the plug to see if it is getting power with the switch on. IIRC it is the gray wire. Clip the test lamp lead to a good ground. If you have power to the plug it is either a ground or printed circuit problem.
__________________
  Reply With Quote
Old 9th-September-2011, 08:27 AM   #11
1977Chad350
 
1977Chad350's Avatar

Title: Moderator
iTrader: (3)
Status: Offline
Join Date: Feb 2004
Location: panama city, fl
Nova(s): 1977 Nova 1978 Nova
Posts: 3,039
I got them working! Thanks for the help. I wouldnt have got them working without knowing the grey wire powered them. It would be awsome to get a color version of the wiring diagram.

I bought a volt meter instead of a test light.

1st-tested the grey at the plug no power.

2nd-tested the red at the switch it had over 12v.

3rd-tested at the fuse box no power.

4th-pulled the fuse and cleaned the connection good, still no power.

5th-pulled the plug off the headlight switch and cleaned the switch connection.

6th-Plugged it back in and I had dash lights.

Thanks Again
__________________
1978 Nova 2 door Gen V 454 crate engine 350th Transmission 8.5 10 bolt locker
1977 Nova 2 door coupe

Last edited by 1977Chad350; 9th-September-2011 at 12:01 PM.
  Reply With Quote
Old 9th-September-2011, 01:41 PM   #12
Philip
 
Philip's Avatar

Title: Moderator
iTrader: (12)
Status: Offline
Join Date: Mar 2004
Location: Marana AZ 85653
Nova(s): 1977
Posts: 10,286
Glad you got it going. The wire colors are on the schematic, but sometimes the line is hard to follow. When I added the wires for the console and dash gauges all the factory colors were used. If me or someone in the future needs to trouble shoot the harness the factory wiring diagram can be used to ID the circuits.
The procedure you followed was excellent. Start at one end of the circuit and work to the other until the problem is found.
__________________
  Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
No Dash Lights? johnnynogood Electrical 6 29th-June-2009 03:16 PM
no dash lights ? d man Electrical 6 2nd-November-2008 01:57 PM
no tail lights or dash lights nova64000 Electrical 5 20th-August-2008 04:53 PM
no lights in the dash LarryMc Electrical 2 18th-April-2007 04:30 PM
dash lights went out? theracer Electrical 2 28th-March-2006 11:37 PM


Site best viewed set to 1024 x 768.

All times are GMT -4. The time now is 10:04 PM.

Custom Designed for Steve's Nova Site by: vBSkinworks

 
Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Lt

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.