Date registered: Nov 2008
Vehicle: 1981 300TD 310k--1966 230 165k--1970 280se 172k
Location: Ohio City, Ohio
Mentioned: 1 Post(s)
Quoted: 33 Post(s)
Of course, the terminal block on the transmission is for the three-position solenoid that affects modulator pressure. I believe that one position is actuated by the starting switch on the carburetor, one is normal, and the other is actuated by the kickdown switch. I'm not sure how the starting switch works on fuel injection, as on my carb model 110 there is a switch on the throttle plate.
I went through my wiring diagrams and could not find which wires do what on the terminal box. I would guess that one terminal is ground, one is from the starter switch, and one is from the kickdown. If you can find the old wiring harness to the transmission, when you bend it down in position it may tell you which wire goes where. Or if you still have a kickdown switch and starter switch, you can see the colors or do continuity to identify the respective wires. You may be able to find continuity to ground at the wire or maybe the terminal (if the ground is redundant) and identify that circuit, at least. If so, you can play with the other two wires and watch the solenoid work through the access hole on the passenger side of the hump as you toggle the starter switch and the kickdown (with the ignition switch on). I'm not sure which position of the solenoid is starter and which is kickdown. Perhaps someone who knows more can provide this information.
EDIT: After reading the post again, I'm not sure whether you have the wires and don't know where they go, or you don't have the wires but know where they go. If you have the wires, there is a terminal block on the passenger side of the transmission under a cover plate.
1981 300TD--310k miles
1970 280sel--172k miles
1966 230--162k miles
Last edited by carpenterman; 01-22-2011 at 08:55 AM.