Ive tried searching for a straight forward answer to my question and have so far come up short. I'm trying to figure out what some of the center console switches in my 72 GC10 are for. There are 4 lever type switches on the center console in front of the gearshift. Top left is the RD which I've found to function the Rear Defrost. Pretty simple. Next, top right switch, has the letter L on the lever. Its a 3 poll switch, down, center, and up positions. From underneath, it has 4 pin connector with all red wires. It is connected to nothing! There is not even a loose harness underneath the console in which it mates.. Next, the lower left switch has WA written on it. It's also a three poll switch. Middle position and up position are switchable and has a spring loaded down position. I believe the down depress actuates the Washer Accessory hence WA on the lever and by checking for voltage to the washer reservoir pump which gets 12v when this WA switch is depressed in the down/spring loaded position.. I'm still unsure of the middle and upper switchable functions since there is no noticeable actuation of any kind when these positions are engaged. Fineally the lower right switch, W. I've found this to operate the wiper function after rebuilding the broken internals of this switch. That, and the horrendous grinding noise from the passenger under dash when I operated the switch... Haha
So in a nutshell my question is, what do the 3 positions of the L switch function, and what does the middle and upper position of the WA switch operate?
I will do my best to add a picture of what I'm looking at for refrence.
Thanks in advance!