The Dodge Challenger Message Board

Hi All
Just replaced my tail light harness with a the YearOne repo that now has an earthing spade on each bulb holder??
Must each be earthed?? or None or What does anyone suggest please?

My original harness had been messed around with and was only earthed at each corner of the trunk. I thought that by replacing it I would be sorted....


Cheers

Each tail light socket is grounded on my 73. The new repro harness uses a different style socket then my car originally came with but each socket is still grounded. There are a lot of 1970 owners here who should be able to tell you for sure.

Are you still having an issue that you thought would be taken care of with the new harness?

OK Thanks
Yes still having the same problem, sometime ago I lost the turn signals/indicators and I've replaced every harness since hoping it would resolve the problem, strange thing is that the hazzards work fine, I'll figure it out sooner or later, I just wondered if it could be something simple like an earth on the tailights. Originally the car was a 74 but now has a 70 front and rear end and the old wiring was well past it so I'm slowly replacing everything with 70 parts to complete the project.



Cheers

The hazard relay and the flasher relay are two separate items, have you tried a new flasher unit? I got a spare loom that I keep for spares and its got a flasher unit on it if you want me to post it for you to try
I don't think that there will be much difference between 70 and 74 looms, not enough to make any difference anyway.
Considered you may have a fault at the column? Possibly a faulty indicator switch?

Cheers Adrian (I will get round to calling you one day, and when I do you'll regret it, I'll pick your brains about everything!)

Yep replaced the indicator switch cam and complete column harness aswel and what I thought was both the hazzard and flasher relays (the reprods of these are quite small pod types and are very similar and have 2 spade terminals) but when I replaced the dash harness I noticed their was a longer thinner cyclinder type relay (which I think has 3 spade terminals from memory) nearest the column which I've yet to test/replace, you'll probably gonna tell me that this is the flasher relay

I'll post/text some relay pics over the weekend to see what you think and failing that I might just take you up on your kind offer!

Cheers

The longer thinner relay is for the ignition light time delay. It was only on cars with the "light group".

Ahhh, Thanks for that!

Have a look at the wiring diagrams that are posted in the "Electrical section", look at the post for "71 wiring diagram", look at the 4th diag down from the top, look closely and you'll see the seperate emergency and indicator flasher units. I would assume that the basic wiring pattern for the chassis on a 71 is the same as all the years. I used this diag to help rewire my 72 and it works perfect, all my interior lighting and acc are all operational thanks to this post

burdar wrote:Each tail light socket is grounded on my 73. The new repro harness uses a different style socket then my car originally came with but each socket is still grounded. There are a lot of 1970 owners here who should be able to tell you for sure.

I have no special ground/earth on mine. So I think I miss something. Can you please post a picture how it looks like?

TIA
walkAbout

The socket grounds to the light housing that's all

Thanks, that is what it looks like. I made sure for good contacts to the body, when I did mine, but I was wondering about this:

colchester1978 wrote:My original harness had been messed around with and was only earthed at each corner of the trunk.

AFAIK there is no ground on the harness, only positiv signals and the ground comes from the chassis.

CU

walkAbout