Instrument Panel Lights

[Wayne.Alx]

I'm trying to replace the existing instrument panels lights with LED type. The problem is that the LEDs are polarity sensitive whereas the existing bulbs are not. How can I determine the correct way to insert the LEDs or test the panel before reinstalling and finding out that they are in backwards?

 

[SenorNoob]

Might be able to look at the traces to follow power/ground? Or leave the bulbs out and provide power/ground to the wires in the diagram?

 

[steve01]

I changed mine in my 2003 and just left the cluster hooked to the plugs and turned on the parking lights. Took a little reaching around but did the job in about 30 min.

 

[Wayne.Alx]

As it turns out, tried a checking for common ground with multimeter, but did not work. Then as steve01 indicated, just put in the bulbs and plugged in.
Thought I had everything finally with right polarity, reinstalled and found I missed the cruise control indicator light, so I guess I'll need to do it again. Thanks for your responses. It really insane what the dealer wants for one light ($42 each) when you can get the whole set of 10 for $15! Crazy.

 

[O No 3.0!]

Next time, look at the description of the leds, because they do make non-polarity leds.