1997 Volvo 960 Replacing the Brake Light Switch

Thank you very much. I actually got it in before remembering to check back here to find the schematic, which would have saved me a lot of time if I had remembered to check back for it. I will be sure to make a donation if you can help me on this follow up question:

I got the brake light switch in, and it is working properly, so the old problem is fixed, but now I cannot put the car in reverse. Shiftlock override works, but it is as though there are two components to the switch; one to signal the brake lights to turn on and one to let the transmission know that the brakes are being applied to allow me to shift into reverse. Thank you for your time.