Wires Inside the Yaris & What They Do

[cgarcia1821]

Originally Posted by CTScott

Tach wire location at pin 9 of DLC3 connector:

09 (Beige wire):


07-08 (Green Wire):

I accidentally starting messing with these wireds to see if any were for the headlights (i was trying to install interior led lights) and all of my dashboard lights are now going off like crazy (airbag, check engine, battery, sliding, etc), the a/c and heater doesn't work, the turns signals don't work if i step on the brake, and it no longer indicates what gear i'm in. I really messed up, but I would like to know if anyone has had this issue or knows a solution or what's going on.