OBC Hack

[vza]

Hi all, 99 Boxster Base. Recently swapped my cluster for a 996 cluster and also did the OBD hack using 2 window switches instead of the stalk and it was pretty much plug and play....everything works. Batt/oil gauges and OBC. The only thing I can't figure out is how to get the new switches to illuminate when the lights are on. I figure the common ground is present so all I need is a hot wire for illumination. I tried jumping the hot from the TC switch above the 2 new switches....but nothing worked. I also read pins 3 and 5 on the switch are gnd and hot respectively so I just tried to jump them from the TC switch and they illuminated but then the TC LED light stayed lit w ignition off.Anyone know how to get em' lit? I swapped them with the door plugs and they do work so its not the switches. Thanks V

Edited August 25, 2019 by vza

[vza]

FYI...Got the night illumination to work w/ the window switches as OBC hack. Trick is: you have to pull the switch apart 1st. 1st remove the rocker by releasing the peg from the hole on each side. Mark both pieces so you re-assemble the same way. Turn the switch over w/ pins facing you, there are 4 tabs to release, pull the switch apart,(switch is keyed so it goes back only 1 way) Now.....look for 2 contacts that are always closed on the side of the switch. You'll find them by looking and pressing the rocker 'nubs' (2 small squares of plastic that activate the switch) When you find the contacts get a small piece of electrical tape, maybe fold it over at the end so not to gum everything up, and open the switch and wedge it between the contact so the circuit remains uncompleted. tape the remaining to the top of the board so it doesn't move.( I may try and de-solder and pull out the contacts and glue a small plastic button in its place.) It has to be done w/ the 2 contacts. Re-assemble the switch. 

Edited September 16, 2019 by vza