CORRECT CONNECTION FOR CHECKING LED POLARITY FOR 67 BARRACUDA INSTRUMENT CLUSTER

[soonercruiser]

Yup!
I'm lazy, and not good at deciphering electrical diagrams.

*But I am rehabbing the instrument cluster, gauge faces, and lights while I am installing a new Dash Bezel.
Below is a picture of the back of my instrument cluster.
TO BE SURE LED POLARITY IS CORRECT....WHERE WOULD I CONNECT THE POS and NEG WIRES TO on the back of this cluster?

 

[Dana67Dart]

Red dots are the cir board trace the feeds 12v to the gauge lights

Look for similar on the other cir board.

Or post another photo of the other board

If you are changing the turn signal and brake warning lamp follow the same basic paths, one side of the lamp will go to a ground / screw.

Exception.... Brake warning lamp has a 12v feed and an out put to the brake warning light switch to ground.

So that one you will need to get a wiring diagram to determine polarity.

 

[soonercruiser]

WOW!!!!
I've dodged a small bullet!
My cluster already had LEDS installed.
The new bulbs that I got are no brighter.
So, I am leaving well enough alone.

But, when done, I will post pictures of the gague faces.....black before....and white face after.
I have already touched up the the hot orange paint on the gauge needles.
I'v got one gague face coming loose anyway and touching the needle. So, the timing is good to upgrade them

THANKS Dana67Dart for the contact points.
Even my Service manual didn't have a diagram on this.

 

[Dana67Dart]

THANKS Dana67Dart for the contact points.
Even my Service manual didn't have a diagram on this

It's really about following the traces on the board.

If the trace on one side of a bulb goes to a screw it's the ground side of the bulb.

 

[Mopar44134]

I changed mine as half were out….and upgraded to blue. Go figure.