Odometer and cruise control linked? (82 300SD)

[soydrivermatt]

Well, just got a new SD, and on the way home the cruise control actually worked! But now, a few drives later, it doesn't, and the odometer has stopped at the same time. Searched, but didn't get anything on the linked problems, I have found what looks to be a broken wire at the tranny crossbrace that seems like it should hook to a screw that would be the ground, with the electric speedos that the SD's have could one broken wire cause both problems at once?

P.S. the engine had a really horrible shake because of a too low idle speed, raised the idle a little and it smoothed out tremendously, that's probobly the cause of the wire break....pics to come....

[soydrivermatt]

Well it doesnt seem to be that wire, but still curious what it goes to. It is green, real small gauge, and hooks to the tranny itself with a small screw on the passenger side after running along the crossbrace at the back of the tranny from the driver side, and it's in a thicker black cover, reconnected it but haven't noticed any thing working that wasn't before...

[soydrivermatt]

bumping

[soydrivermatt]

C'mon, somebody's got to know what that wire does...enquiring mind want to know!

[tangofox007]

The wiring diagram shows a green wire from the kickdown switch to the kickdown solenoid. The solenoid should be just behind the right, rear corner of the transmission pan.
The solid state speedometer sends a speed input to the cruise control amplifier.

[TonyFromWestOz]

Originally Posted by tangofox007

The wiring diagram shows a green wire from the kickdown switch to the kickdown solenoid. The solenoid should be just behind the right, rear corner of the transmission pan.
The solid state speedometer sends a speed input to the cruise control amplifier.

In that case, one wire could cause both speedo and cruise to fail simultaneously.

On a similar fault, My '84 300D has working cruise (well sometimes, when the temperature is not too hot or cold) When it works, it is great at 80- 120km/h, but at less than 80 km/h, especially when the car has run for less than 1/2 hour, the speedo needle tends to vary significantly. This causes the cruise to shutoff. Cruise can be reinstated, but it is a pain having to reset the cruise every 2-3 minutes, if I wish to cruise at 75-80 km/h.

OK, OK, no-one in USA drives THAT slow do they