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Brake light/Turn signal/Dome light woes
Posted by: 4wd430 ()
Date: May 26, 2017 05:13PM

Hello everyone,

I have a lighting issue with my '60 Corvair. My turn signals barely work but my brake lights don't at all (bulb is fine).

I had replaced the brake light switch and bulbs when I first got the car and the brake lights were working fine.

I cleaned the grounds on the tailights and the headlights by the sockets.

This issue with the turn signals flashing very, very slowly and the brake lights not coming on, is recent.

Things I have tried:

-Wiggling the light blue wire thats connected to the switch made the turn signal blink slowly after not blinking at all (after the problem developed, it just remained lit but did not flash).

-Put a small wire connecting the fuse that handles the brake lights/dome lights and connected it to another fuse that was getting power -Everything worked PERFECTLY! Had to remove it however because it was draining the battery when ignition was off.

Takeaways:

-Fuse that controls the brake lights, dome and courtesy lights not getting power at fuse box.

-Something might be up with that blue wire connected to headlight switch

-There is a dangling black wire not connected to anything.

Any help would be much appreciated!!!

60' Corvair Deluxe 4dr

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Re: Brake light/Turn signal/Dome light woes
Posted by: RKF ()
Date: May 26, 2017 06:28PM

I suspect you have corrosion issues in the fuse block. It's fairly easy to replace the old block with a new modern fuse block. This should make your electrical gremlins go away.

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Re: Brake light/Turn signal/Dome light woes
Posted by: cnicol ()
Date: May 26, 2017 06:40PM

Use a test light to confirm power out of the brake fuse clip. Then use a test light to confirm powerinto the brake switch. Then push the brake pedal down to confirm power out of the brake switch (white wire). Continue to push the brake pedal and confirm power going into the turn signal switch connector (White wire)

If your rear turn signals are sorta functional and the tests above showed "all good", the problem lies in the turn signal switch.


As for your slow turn signals - have you tried replacing that 57 year old turn signal flasher?

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later

+17 Tons of parts

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Re: Brake light/Turn signal/Dome light woes
Posted by: 4wd430 ()
Date: May 26, 2017 06:57PM

I will try to give the fuse box a little cleaning. How do I also clean the headlight switch ground?

A friend had tested the power with a fuse light and said "you have no power going to the fuse box"

60' Corvair Deluxe 4dr

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Re: Brake light/Turn signal/Dome light woes
Posted by: MattNall ()
Date: May 26, 2017 07:11PM

4wd430 Wrote:
-------------------------------------------------------

> A friend had tested the power with a fuse light
> and said "you have no power going to the fuse box"
============================================================================

Get a new friend to help!! "Power" +12vdc COMES FROM the fuse panel!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Brake light/Turn signal/Dome light woes
Posted by: cnicol ()
Date: May 26, 2017 08:48PM

The headlight switch ground is not the problem. The only reason the HL switch needs a ground is for the dome light.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later

+17 Tons of parts

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Re: Brake light/Turn signal/Dome light woes
Posted by: dingo50 ()
Date: May 27, 2017 10:04AM

I've been tracking down electrical gremlins on my '64 for the last two days. All of the connectors and sockets were dirty. Get some electrical cleaner and clean everything. I had to clean some of the contacts with a small file.

I added a ground wire for the front turn signals. Also clean the main plug that is in the trunk, I cleaned the contacts in that plug and lights began working. The dimmer switch was bad, replaced that and the headlights started working.

But basically cleaning, grounding and replacing bad components got everything working.


Also test and clean the headlight switch and turn signal switch.

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Re: Brake light/Turn signal/Dome light woes
Posted by: 4wd430 ()
Date: May 27, 2017 12:57PM

So some progress...

Cleaned turn signal grounds. Turn signals work perfectly.

Remaining issues:

No dome light or brake lights

Tested the fuses, Here is what I found:

[www.youtube.com]

Brake/Dome light fuse does not light up

I did not test the brake light switch as yet. Do I need to make a small hole on the insulation and then use the test light? Please forgive the lack of knowledge, I'm still learning. However, if the dome light doesn't work either, is the brake light switch really the issue?

60' Corvair Deluxe 4dr



Edited 1 time(s). Last edit at 05/27/2017 01:02PM by 4wd430.

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Re: Brake light/Turn signal/Dome light woes
Posted by: Ed Dowds ()
Date: May 27, 2017 02:06PM

You can test for voltage at the brake light switch by the sticking the probe of the test light into the wire side of the connector next to the wire. You probably do not have voltage there. I suspect the problem is no voltage at the fuse box end of that wire.

Test for voltage on both sides of the fuse!

Ed
Hillsborough, NJ
66 500 rear 4.3 V6 Corvair
69 350/350 TH Camaro was RS
30 Model A Ford Streetrod 350/400 TH
88 Celebrity Wagon (Daily Driver)



Edited 1 time(s). Last edit at 05/27/2017 02:08PM by Ed Dowds.

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Re: Brake light/Turn signal/Dome light woes
Posted by: 4wd430 ()
Date: May 27, 2017 02:10PM

If there is no voltage at the fuse box end of that wire, what do you recommend I do to fix the problem? Is there a problem with a wire leading up to the fuse box? Just trying to understand.

60' Corvair Deluxe 4dr

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Re: Brake light/Turn signal/Dome light woes
Posted by: MattNall ()
Date: May 27, 2017 02:26PM

60 year old cars develop corrosion on the back side of the fuse panels.

2 bolts and it comes away from the firewall... then you can test the back side





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Brake light/Turn signal/Dome light woes
Posted by: cnicol ()
Date: May 27, 2017 02:36PM

Use a TEST LIGHT to check for power at the fuse box and then through the fuse and out of the fuse box.

See photo. Use the TEST LIGHT to check for power at the following points and one, two, three, four in sequence.

#1 Power supply terminal
#2 Power transfers to the end of the fuse OK
#3 Power getting through fuse (fuse is good)
#4 Power transfers from the fuse to the output terminal OK

There's a wire on the backside of the fuse panel that carries power from #4 to the brake switch.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later

+17 Tons of parts

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Re: Brake light/Turn signal/Dome light woes
Posted by: 4wd430 ()
Date: May 28, 2017 10:29AM

No power found from testing any of those 4 spots. Then all of a sudden I had power out of nowhere and my dome light was working. Then all of a sudden it stopped working on no power to any of those 4 spots anymore.

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Re: Brake light/Turn signal/Dome light woes
Posted by: MattNall ()
Date: May 28, 2017 10:32AM

Loose / corroded connection somewhere... keep wiggling with testor connected!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Brake light/Turn signal/Dome light woes
Posted by: cnicol ()
Date: May 28, 2017 11:00AM

Disconnect battery
Remove the two fuses that cover the mounting screws
Remove mounting screws
Flip fuse box over and check for corrosion and tightness of battery connection on backside of fuse panel.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later

+17 Tons of parts

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Re: Brake light/Turn signal/Dome light woes
Posted by: 4wd430 ()
Date: May 28, 2017 11:04AM

I've been trying to get this fuse box out but I can't even figure out how to. I misplaced my workshop manual and I don't see any mounting bolts or anything

60' Corvair Deluxe 4dr

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Re: Brake light/Turn signal/Dome light woes
Posted by: oldqmguy ()
Date: May 28, 2017 11:08AM

Please do what Craig says. thumbs up

This sounds like a bad case of corrosion. My 'secret weapon' for this problem is a chemical called "Deox-IT" available at electronic stores or on line. It is in a spray can and 'a little dab will do ya' (don't soak it!) just spray the fuse tabs and take off any connectors and treat both genders. A little fine sandpaper on the tabs may help as well (they do look rusted).

After following Craig's steps, let us know what you find.

Dale cool smiley

Dale E. Smiley CPBE
Life Member The Society of Broadcast Engineers
RETIRED Broadcast Engineer
CERTIFIED CORVAIR NUT
CORSA/Circle City Corvairs/Corvair Performance Group
Avon, Indiana
WB9SFF
1967 4-Door Monza PG!

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Re: Brake light/Turn signal/Dome light woes
Posted by: oldqmguy ()
Date: May 28, 2017 11:13AM

It appears that the "mounting screws" for the 1960 Fuse Block are UNDER two of the fuses.

Removing the fuses will allow you to see the screws. Pulling the fuses out and re-seating them will also help reduce corrosion problems.

Hope this helps!

Dale cool smiley

Dale E. Smiley CPBE
Life Member The Society of Broadcast Engineers
RETIRED Broadcast Engineer
CERTIFIED CORVAIR NUT
CORSA/Circle City Corvairs/Corvair Performance Group
Avon, Indiana
WB9SFF
1967 4-Door Monza PG!

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Re: Brake light/Turn signal/Dome light woes
Posted by: 4wd430 ()
Date: May 28, 2017 04:11PM

Got everything to work guys! There was some corrosion on the back of the fuse box. Cleaned that up and I have working brake lights and my dome light works! Thank you to everyone who helped!!

60' Corvair Deluxe 4dr

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Re: Brake light/Turn signal/Dome light woes
Posted by: MattNall ()
Date: May 28, 2017 04:28PM

If you look at a diagram...Brake / Dome and Dashlights are on the same circuit...

Many times while towing a trailer... the added load would blow the fuse..

Now you know what the back of the fuse block looks like..





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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