So as the title states I have no 12volts in the yellow ignition wire. I bought this car and I guess the previous ownet had an alarm because the igition harness it tapped and cut into. Anyways I noticed a red speaker wire jumped from the white/black wire to the yellow wire. I took off the jumper wire from the wht/blk wire and checked for voltage at the wht/blk wire and I get 12v on ign1 and ign2. I checked for voltage on the yellow wire and have 0 volts on ign1 and ign2. I tried to start the car and it turns on then shuts off. I reconnected the red jumper wire with the key on ign2 and I can hear and feel the icu and main relay click on and thebcar starts up. I know the jumper wire isnt suppose to be there. So how can I fix this. Ill have more time tomorrow to fiddle around with it but for now I cant get really in there. I check #18 fuse under the hood and I do have constant 12v on the white wire on the ignition harness and ibhave 12v while cranking on the blk/ylw wire. Ive attached a picture so you guys can see what im talking about.

 

I think the ignition switch is bad. I just check it for continuity and I got nothing...