Originally Posted by
Cobrajet
Is it possible that the switches already on the brake and clutch pedals are multi-function? I mean, the clutch pedal already has an interlock function which must feed into the ETACS. Maybe the brake pedal switch (for the brake lights) is connected to the ETACS as well? With ABS, traction control, etc, I'd be amazed if the brake pedal switch wasn't already sending a signal to the ETACS every time it is depressed.
I guess what I am saying is that these cars have most of their electronic functions controlled by one box, not like older cars where the cruise control was essentially a separate system. If there isn't a part number for separate clutch/brake switches for cruise-equipped cars, that may because the clutch/brake switches already there also handle the cruise disengagement function in the ETACS.
This may be a lot simpler...in terms of parts...than you are trying to make it. The car may just need the actual cruise master switch, and possibly a relay or two, along with the activation in the ETACS. Just because a Mitsubishi tech doesn't know how to use an MUT3 doesn't mean what you are asking is impossible.
As was mentioned, this has actually already been done. It should be easier with the base '17 cars because a switch can be added to the steering wheel instead of the whole wheel requiring replacement.
I have also wondered if each ETACS unit is coded to a particular car (like BMW does) or if they are interchangeable. Could you get an ETACS from a wrecked car with cruise control, swap it with the ETACS in your car, and have the cruise function work?
Just thinking out loud...