1959 DeSoto Turn Signal Switch / Brake Light Issue
Fireflite56
Posted 2017-06-13 9:25 PM (#542083)
Subject: 1959 DeSoto Turn Signal Switch / Brake Light Issue



Extreme Veteran

Posts: 341
10010010025
Location: Wisconsin
I have a 1959 DeSoto Fireflite that I am having issues with one of the brake lights on. The left side works every time - tail/brake/signal - just the way it should. The right side always works with the signal and taillight, but the brake light only works if the left signal is on OR I put a little pressure down one the signal switch (towards left signal postion). Before I tear into the column or spend money on a new signal switch, has anyone encountered something similar and is there an easy fix? I am very mechanically apt, but less so when it comes to electrical.

Thanks in advance!
Top of the page Bottom of the page
wizard
Posted 2017-06-14 1:36 AM (#542092 - in reply to #542083)
Subject: Re: 1959 DeSoto Turn Signal Switch / Brake Light Issue



Board Moderator & Exner Expert 10K+

Posts: 13050
50005000200010002525
Location: Southern Sweden - Sturkö island
I would, first of all check that the correct type of bulbs are installed and that they have proper contact and good ground.
Top of the page Bottom of the page
Powerflite
Posted 2017-06-14 10:07 AM (#542116 - in reply to #542092)
Subject: Re: 1959 DeSoto Turn Signal Switch / Brake Light Issue



Expert 5K+

Posts: 9673
5000200020005001002525
Location: So. Cal
I would check the ground to the bulb. It could be that the turn signal is providing a different source of ground to make the brake light work. It is a long shot, but a lot easier to try. Most likely, though, it is probably a centering problem on your turn signal switch. You probably need to open it up and re-center it.
Top of the page Bottom of the page
Fireflite56
Posted 2017-06-19 11:18 PM (#542490 - in reply to #542083)
Subject: Re: 1959 DeSoto Turn Signal Switch / Brake Light Issue



Extreme Veteran

Posts: 341
10010010025
Location: Wisconsin
I believe I had checked bulb type at one time and tried different bulbs without success.

I took off the steering wheel this weekend and I noticed that there seems to be some white corrosion. A good cleaning, both at the socket and up at the signal switch, will probably be where I start. Powerflite, can you elaborate on the "centering" process? I have attached photos showing what it looks like.

Also, does anyone know exactly what the copper/brass tab (seen in the last photo) is for and where it goes? Mine was laying loose in the column when I pulled the wheel. Could this be a source of my problem?



(Switch 1.jpg)



(Switch 2.jpg)



(Switch Ground.JPG)



Attachments
----------------
Attachments Switch 1.jpg (175KB - 188 downloads)
Attachments Switch 2.jpg (245KB - 198 downloads)
Attachments Switch Ground.JPG (24KB - 176 downloads)
Top of the page Bottom of the page