To see the history of what I'm talking about read from page 6 in this thread.... http://forum.aev-conversions.com/sho...2714#post12714
You can see my original post on jko here https://www.jkowners.com/forum/showthread.php?p=472668
Using the specs from the FSM for the output of the tcase position sensor, I wired in a resistor on a switch to the output signal of the sensor to the TIPM. The specs for the sensor can be seen here http://www.jeepfan.com/tech/JKLockerHacks.php
.......however they are kinda wrong for my jeep and probably all jeeps. Instead of position 5 not being used, position 3 is not used. 2HI is ~1200 ohms, 4HI is 680, N is 210, and 4L is 60. I used 2, 1.3k Ohm resistors in parallel to get right on 620 Ohms. When I'm in 4L, the computer sees 60 Ohms, flip the switch and its seeing 680 aka 4HI. This still allows the use of the e-disco but drops the idle back down to 600 RPM. The jeep crawls noticeably slower, but can be used either way.
The worst part of the whole job other than figuring out the wrong parts of the FSM were removing the stupid huge battery tray thing for easy access to the firewall. Its a tedious job, but nothing to technical. Of course I had to hack the lockers while I was at it so they could still be used, just using the switched ground method found on that same page referenced above. The only other thing with tricking the computer is that the ESP is still on in 4HI, just hold the button for 5 seconds each time you start the jeep, and viola, ESP is 100% off. I haven't trail tested it yet, just backyard testing, but it works flawlessly so far with no weird lights or problems.
I used switches with red covers, not lighted, and just installed them all on the removable plastic panel below the factory lockers and such. of course, everything still works the factory way, if you want to use it that way. Maybe down the road I'll hack the swaybar and install another switch right there for it.
Maybe I'm the only one that will like this, but I doubt it. The slower the better when it comes to LO+first gear.
I guess this should be in modified, sorry, I just searched for my old posts and replied to it. Maybe someone with the power can move it, the whole thread I mean?