That's what I was hoping was the problem with mine (will accel/decel with the actuator, but won't stay "on" cruise at all). Went through all the wiring, tried two cruise amps (one has a conformal coating that is impossible to solder through) and nothing, still won't come on and stay on, but will accel with the operating lever (once you let go of the lever, it slows down.)

Will probably never find the problem with mine, glad you found yours!

__________________
1984 300D Turbo - 4-speed manual conversion, mid-level resto

1985 300SD Auto - Runner.


=========================

"If you don't know where you are going, any road will get you there". Lewis Carrol