Wires Inside the Yaris & What They Do

[nmd55]

So i tried the sky-blue wire at the dimmer and it works. However its dimming the power window switches in the opposite direction as the dash. So when the dash is fully lit, the power window switches are not lit at all and vice-versa.

I checked the connection with my multi-meter and it is indeed +12V so im not sure whats wrong.

My car is MT so there is no shift lever, is there another headlight source i can tap?

Thanks for the help!

[CTScott]

Originally Posted by nmd55

So i tried the sky-blue wire at the dimmer and it works. However its dimming the power window switches in the opposite direction at the dash. So when the dash is fully lit, the power window switches are not lit at all and vice-versa.

I checked the connection with my multi-meter and it is indeed +12V so im not sure whats wrong.

Thanks for the help!

That's correct. Is the light wiring on your switch separate from the switch controls, or is it integrated, where it shares the same ground? It sounds like the latter, as the dimmer brings the ground up, rather than the +12 down to do the dimming. If that's the case, using green as your + and chassis ground as your ground should correct the reversed behavior.