Originally Posted by ncb
Hook meter leads to the two wires have someone press the brake pedal and check for 12 volts. If you have twelve volts then connect the brake light directly to the battery to test it. If it doesn't light up reverse the wires. I can't remember which color wire is + and - on the light. Start simple before ripping it apart.
I did this and got nothing, but I don't know how Chrysler does it's electrical. I'll get a longer test lead from work today so I know I'm landing it on a good solid negative to the battery and try again. I had my daughter run the brakes for me and the others were coming on.
I had this same issue on a VW fuel pump where I tested it every way to Sunday and never got a reading, but the new fuel pump worked...?
Freaking vehicle electrical systems...
I didn't reverse the leads on the LED assembly itself. By that time I was hot, sweaty, and seriously wondering if my meter is toast.
It's under warranty still, I just like to dig into things myself if possible. Even if the LED assembly has a blown diode (yes....I know what a diode is) it's a sealed unit and they should still replace it at no cost to me.
It's just frustrating because it should be so simple...yet it never is...