My right rear door courtesy light has two wires- a solid red and a black w/ white stripe. What puzzles me is that both wires have voltage across them when the key is turned to the left or right. To me the red is the feed and black would go to the door jamb switch. I currently do not have a bulb in the socket- there never was one in place. None of the courtesy lights in the door pull handles worked in any of the doors when I bought it. I got the right front fixed after splicing the red and blk w/white wires which were severed in the door jamb. The right front now comes on when I open either of the front doors, telling me the front door jamb switches are good. I still have to splice those two wires in the left front door jamb which are severed, but not shorted. I have a '63 Sedan DeVille, 6339. The schematics in the manual are somewhat helpful, but the color coding doesn't match with what I have( pages 12-93, 16-104, 16-118 ). I should state that my wiring is still encased in the cloth tape so I know it's stock, also, the wires are not damaged in the rear right door jamb.Why do I have power (12V) on BOTH the red and black? I'm not putting a bulb in there until I fix it right. This is driving me up the wall.

Views: 157

Reply to This

Replies to This Discussion

Robert- thanks- I will be sure to check in that location.

Andy, everything you need to know is already at hand.  If you ground the black wire with a bulb in place, the bulb lights.  So you have no ground at the jamb switches or the seat switch.  You should start by repairing what you know is broken (seat switch and left front door), and then check out your jamb switches on the back doors. Jason already made a nice video about here:

JASON'S DOOR JAMB VIDEO

On most Cadillacs of the Sixties, the grounds would be spliced at the door jamb switches.  You should take one out and test for continuity between there and the black wire.  If there isn't any, you know you have a broken wire, start digging.  If everything lights up when you ground the wires to the switch, then you're done, clean or replace the switch.  

Thanks Mark- already started doing just that and I'll deal with the other issue later. Just for the heck of it, I checked the rear left side for comparison. It's bulb was good,yet wouldn't illuminate. When I took the bulb out, so as to see what I had for voltage it checked out good- only on one side of the bulb socket. Here's the kicker... while the bulb was pulled out on the left rear, I checked the right rear- the voltage on the black/white wire was gone. So when the left rear bulb is in place, that's when 12V will show up on the blk/white wire on the right rear bulb holder. This is gonna be a fun fix. And thanks for the heads up on the video.

The voltage you see on the ground side when the circuit isn't on is normal; the voltage on the right side is "leeching" through the filament of the bulb on the left side, because they are all connected.  This is very good news, it means there is an unbroken circuit on the ground side, and all you need to fix is the final ground points.  Getting there.  If you install the bulb on either side and ground the black wire on the other side do they light up? 

Thanks for everyone’s input. It all helped. My problem ended up being caused by a loss of ground on both rear door jamb switches. The car had seen a lot of gravel roads prior to my purchase and acquired road dust in the switches and within the doors themselves. Cleaned the switches with brake cleaner followed with electronic spray. They work fine now. Am including pics of the rats nest of broken wires found in the front door jamb. Someone had tried fixing the electric seat wiring, but the broken window wires were still encased in the cloth tape. 

Congratulations-

RSS

Photos

  • Add Photos
  • View All

Forum

Classic Cadillac Parts For Sale - Misc Items

Started by Jason Edge in For Sale. Last reply by Jason Edge 12 hours ago. 164 Replies

I have posted a few Misc items over on my Classic Cadillac Parts Facebook page at…Continue

Tags: classic cadillac parts, classiccadillacparts

Looking for 64 to 66 seat belt buckles, male and female together.

Started by Ryan Frawley in Wanted to Buy. Last reply by Tony and Ginny 429 14 hours ago. 5 Replies

Hey all, I am in the process of finishing up my 64 coupe deville and noticed that the front seat belts only have the retractor side in the bag I put all the belts in when I got it. I have found it…Continue

Tags: buckle, safety belt, seatbelt, seatbelts

Movie Star Cars.

Started by Kevin Campbell in General Discussion. Last reply by Kurt 21 hours ago. 17 Replies

We have the Village Roadshow film studios about an 1.5 hour drive away.They've put out a call for cars to appear in a movie about Elvis. :-)So, I nominated our 64 Fleetwood as a potential "Movie Star…Continue

Current 1963/64 Cadillac Listings on eBay

Started by Jason Edge in For Sale. Last reply by Jason Edge 22 hours ago. 0 Replies

To see all 1963/64 Cadillacs Listed on eBay in the USA…Continue

Tags: ebay

Blog Posts

Stuck at two red (dash) lights!

Posted by Jeff Kinzler on November 3, 2019 at 10:00pm 9 Comments

I hope someone can help solve these two electrical problems that appeared one after the other.

By way of background: The car, a '64 Eldorado has very limited use. It was at a restoration shop for 15 months until last January-  that supposedly did a bunch of wiring repairs including rebuilding the gas gauge that still hasn't worked properly, and the clock that hasn't worked, and re-soldering the broken wires in the drive door. All window and seat controls appear to be…

Continue

driveshaft help

Posted by wayne weaver on October 9, 2019 at 4:41pm 1 Comment

can anyone help me with a driveshaft ? I have a 1963 Cadillac 62 series 4dr with the hydro-matic trans. I need the male splined shaft on the front of the rear driveshaft section. the piece with the nut attached by clip.id be willing to buy a shaft if its not horribly priced.

Dash removal

Posted by Jake Mickley on October 9, 2019 at 12:06am 9 Comments

Hello everyone,

On a 63 CDV, if a guy wanted to remove the entire dash to get all the metal painted, and do some other things behind there, how would he go about doing that?  I checked here and the shop manual, but can't find a complete guide.

As always, and help or direction is appreciated.  Thanks!

--Jake

Introducing myself

Posted by Gary Marchand on October 7, 2019 at 9:32pm 8 Comments

Thanks for letting me join the club.  Picked up this ‘64 Coupe Deville a few months ago out of Beverly MA, the car has few stickers on it from various Cadillac clubs, didn’t know if anyone might recognize it from it’s “Glory days.” Everything seems pretty healthy except for the body and some very Mickey Mouse repairs, was wondering if anyone had any leads on…

Continue

Events

Videos

  • Add Videos
  • View All

© 2019   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service