2.5 Gen Power Window Mod - Make Front Passenger Window operate regardless of Child Lock

2012-2015 Gen 2.5 factory driver power window master panel:
(I had to modify the factory schematic to better show the actual PCB board trace routing of signal paths when compared to photograph of PCB board)



begin by removing the Power Window Master control panel from the driver inner door panel. Go watch a youtube video. theres plenty so i will skip to the panel being removed....


remove the 3 screws from back:


using a plastic scraper or a flat blade screwdriver if you are careful and begin to work the white plastic away from the PCB board "BLADES" ......




using a straight razor blade or an X-acto Knife, slice thru the conductive traces and make sure the they no longer touch across each break you are creating (test using a multimeter and ensure there is NO continuity across each created break) Make a sliced break where the dashed yellow circle is and again where the dark purple circles are shown. in addition to the highlighted photograph at the start of the post, i will also attach a zoom-in of each of the 2 breaks i made.





Solder the two wires in place as they appear in the photograph.



Reassemble Panel
Reinstall into vehicle

Test. with Child Lock button pressed (engaged), only the front seat windows may be operated:

Driver Master panel can raise and lower driver and passenger front seat position windows, but cannot raise or lower the rear seat windows.

Front passenger can raise and lower only their window

Rear passengers window switches are inoperable

Deselect the Child lock and make sure all switches perform their full functions




for those that upgraded to the aftermarket 2012-2015 tacoma master panel that has AUTO up/down for all 4 windows, the panel can also be modified. I own this panel and hav it in my truck, but i also showed above how to do the factory OEM panel which i have removed but figured id figure out and demonstrate how to modify both versions, the OEM and the Aftermarket Panel that has all AUTO switches.


the aftermarket Panel is extremely difficult because it is a 3 layer PCB and the middle layer which you cannot get to. The middle layer is the layer that is common between the child lock switch output and the front passenger, and rear seat positions. I literally had to drill a hole next to the relay pin in an area that would not affect any other traces and then bend the single leg that is 1 of the 8 pins of the front passenger window switch relay and bend it up thru the hole and make sure it is completely isolated from everything and no longer touching any layer of the PCB.

Then i soldered a wire to that relay pin and attached the other side of the wire to the hard ground spade blade receptacle (thus grounding it permanent and as opposed to it being a Normally Closed switched ground that becomes open in relation to ground when the child lock is engaged (pressed down). the rear seat switches remain attached to the switched ground PCB layer. DO NOT modify the other relays. the Driver window relay is already hard grounded at ir same respective pin, the rear seat windows relays must remain on the switched ground for their same respective pin. all we are doing is making the front passenger window relay the same as the driver relay with regard to only this pin.


Its ugly, but it works great. unfortunately a PCB board layout change would be necessary to do this any other way.... if you have one of these panels and want to try this, just match up the PCB board location to the picture and drill a hole adjacent so you can bend the relay leg up thru the hole and keep it from touching any layer, then solder a wire to it and connect it to the hard ground (unswitched ground) spade. NOTE: This pin is not cut off, a hole was drilled adjacent to it, the solder was all removed from the pin by using a wick, the the PCB board was carved out with an X-acto Blade until the pin could be bent over and into a U shape and poke up thru the hole and out the top side, bent so it is resting against the relays plastic body.

make sure no layer of the PCB, the top, middle or bottom have any traces touching any other layer and make sure the pin isnt touching any layer. it should only touch the eire you sodle to it to then connect to a hard ground a short wire length distance away.