Jeep Garage  - Jeep Forum banner
1 - 20 of 25 Posts

· Premium Member
2015 G.C. Overland
Joined
·
235 Posts
Discussion Starter · #1 ·
I am working on a small circuit that will automatically turn off the ECO button, when the GC is started. I made a similar circuit for my Mini Cooper S, which turned on the Sport button, when the Mini was started.

The circuit will momentarily send a ground pulse to the ECO button, which essentially is the same as manually pushing the button. If there is any interest, I'll make a few more while I'm at it.
 

· Premium Member
2015 G.C. Overland
Joined
·
235 Posts
Discussion Starter · #10 ·
Tarponbeach,
Do you have any more info like how and where the module you made is installed? I would be interested in something like that.
Thanks
The module is the easy part. It is a one shot normally open relay, controlled by a 555 integrated circuit that fires the relay momentarily when the Jeep is started. The problem is the actual ECO switch. It is on a circuit board that is connected to the CAN bus, so there is no easy way to access the actual contacts that the switch closes when pressed. I'm still researching to see if there is an easy way to access the switch, but I'm not optimistic.
 

· Registered
Joined
·
391 Posts
Ok, it sounds like you know what you're doing:), keep us informed. I'm getting in the habit of hitting the button in between seatbelt buckle and hand on gearshift. I really dislike that electronic shifter BTW. I thought I would get more accurate with it, but after six months, I'm still over/undershooting what I want sometimes.
 

· Premium Member
2015 G.C. Overland
Joined
·
235 Posts
Discussion Starter · #12 ·
Ok, it sounds like you know what you're doing:), keep us informed. I'm getting in the habit of hitting the button in between seatbelt buckle and hand on gearshift. I really dislike that electronic shifter BTW. I thought I would get more accurate with it, but after six months, I'm still over/undershooting what I want sometimes.
Not so sure about that.:)

If I'm able to get to those contacts, I'll let everyone know.
 

· Registered
Joined
·
288 Posts
I am positively interested in this as well. Not too fond of having a "checklist" of buttons to press every time I back out of my garage (Ignition: check! ECO: check! Power mirrors: check! Homelink: check!) LOL

Tony
 

· Registered
Grand Cherokee Ltd
Joined
·
10 Posts
Step 1: Randomly meet Grand Cherokee Calibration Engineer thru company's golf league.
Step 2: Get him to set vehicle to default to ECO mode OFF.
Step 3: Enjoy :)

Never really knew that you could create a module for stuff like this, but that would be great for anyone without my dumb luck like me.
 

· Registered
Joined
·
391 Posts
Step 1: Randomly meet Grand Cherokee Calibration Engineer thru company's golf league.
Step 2: Get him to set vehicle to default to ECO mode OFF.
Step 3: Enjoy :)

Never really knew that you could create a module for stuff like this, but that would be great for anyone without my dumb luck like me.

How did he do that? Do you think that regular techs have access to the tools and know how to do the same thing, if they were a friend and so inclined?
 

· Premium Member
2017 Summit
Joined
·
8,667 Posts
How did he do that? Do you think that regular techs have access to the tools and know how to do the same thing, if they were a friend and so inclined?

He just pulled the bulb that lights up the button. ECO is still on.


Shhhh! Don't tell ktech.






--- :lol: :lol: :lol:
 

· Registered
Grand Cherokee Ltd
Joined
·
10 Posts
So I finally got a hold of him and got an explanation of what he did.

First the ECO-mode setting was changed to "Restore previously active setting" so it doesn't default per say. The other option for the setting was "Default ECO to off" and "Default ECO to on" (which was kinda forced on them to better comply with CAFE). The ECO-mode shift strategy was also updated and I have to say after testing, its not half bad. Hopefully they'll release it in a future TCU update.

As for getting your neighborhood tech to do it, I'm not so sure if its possible. He did the process with his laptop connected to the OBDII port and was using their internal software. Not sure if a technician can do it with their Wi-Tech systems.
 
1 - 20 of 25 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top