2007 Toyota 4Runner, Compustar CS7502AS, Alarm Only

Ok so now that there is no voltage in the purple/yellow wire, I must use: DOMELIGHT SUPERVISION WHITE (-) @ DASH FUSE BOX, (WHITE, 20-Pin Plug(A) Pin 8

did you test these wires?

this is the back side of the plugs from the picture i posted above:

Thats purple with yellow dash. Well, its not purple with yellow stripe which isnt it so ill look for that one.

check to the right side of the driver side fuse box and look for the door trigger purple yellow wire : i found this note: the BECU (Body Electronic Control Unit), is part of the FUSEBOX, located under the DRIVER SIDE of the DASH, the unit has 3 Plugs that exit the RIGHT side edge of the FUSE BOX, and are for the Body Electronic Control Unit.

That harness is so tightly packed in there that i dont think i want to mess with it. Id rather find the dome light wire which im not sure where that is

just to make sure. did you check here: check to the right side of the driver side fuse box and look for the door trigger purple yellow wire : i found this note: the BECU (Body Electronic Control Unit), is part of the FUSEBOX, located under the DRIVER SIDE of the DASH, the unit has 3 Plugs that exit the RIGHT side edge of the FUSE BOX, and are for the Body Electronic Control Unit. the door trigger and parking light should be on the top plug.

djdeito wrote: check to the right side of the driver side fuse box and look for the door trigger purple yellow wire : i found this note: the BECU (Body Electronic Control Unit), is part of the FUSEBOX, located under the DRIVER SIDE of the DASH, the unit has 3 Plugs that exit the RIGHT side edge of the FUSE BOX, and are for the Body Electronic Control Unit.

The top plug contains a purple with yellow stripe and silver dashes and thats not it - no voltage when i open a door

did you set your multimeter to DC voltage and connected the positive probe of the multimeter to constant 12 volt in your truck, and the negative probe of the multimeter to the purple/yellow wire? your multimeter should show 12 volt while the driver door is opened. "The 3 plugs they refer to are on the actual side of the BECU, facing the steering column (not the front)"

Yes, and that wire has no voltage. I will check again. It is purple witb yellow stripe and silver dash lines and it located in the middle of the middle row