reverse light for a-833
This should help I just went thru all this garbage and ended up hard wiring a switch on the dash for the backup lights
View attachment Engine compart wiring.pdf
Have you gotten time to look at the file I attached?? It is the one I used for my problem. I had to hard wire the switch to the dash, because the problem was in the transmission not operating the switch. A $4 switch is cheaper than a transmission repair.