12 Circuit Wiring Harness Problems

[Jim Coleman]

Perry,

I first tried using a double circuit GM switch, but went to the Speedway single circuit switch because the instructions showed it in use.


Cruisin:

Checking the harness wires that go to the turn signal switch with 12V (both flashers pulled):

Blue RF Turn signal & indicator - light & indicator work

Lt Blue LF Turn signal & indicator - light and indicator work


Yellow Left rear Turn signal - all 4 and the license plate light lights up


Green Right rear Turn signal - all 4 and the license plate light lights up


Note: both of these will flash if the turn signal flasher is installed.


Not sure where to go from here...…


Thanks,

Jim

[spdbrake]

Jim,

Did you run a ground to each light or are are they daisy-chained (Series circuit)?

If they are you may have Christmas lights.

If so, if you remove 1-2 bulbs the remaining bulbs will be brighter, but most likely one bulb removed will break the circuit.

Also ensure you have the correct PN turn signal bulb and Brake/running lights bulbs and they are not swapped.

It almost seems like your rear lights, turn signals and license plate already have power to them and the turn signal switch is supplying a ground.

The only other thing I can think of right now is your definition of green,pink red, etc... may be off. You may want to start over or get input from another set of eyes. I find that is the most helpful as most of the time the answer or mistake on my part is staring me in the face. I just can't see it.