Rear E-Locker

[SR1355]

Right on, there are plenty of times that I'd like the rear locker locked in 4-HI, dune riding, mud running, snow.... Anyone had any success?

[Idaho-Hummer]

I have not done this but the whole car runs on a 12-Vdc system. Just find the wire that goes to the e-locker and tap with a volt meter and turn it off and on and then hook up a switch. that should do it. give it a try and then let me know if it works.

[f5fstop]

What's 12V DC have to do with it. If it was a 6 volt system it would work the same, or a new 42 Volt system?

Yes, there is a way to bypass it and it requires more than one wire, or you will light up the DIC and set codes.

[SR1355]

f5fstop, do you have more info than that? I sure would like to work around this limitation.

[HummBebe]

Originally Posted by SR1355

Right on, there are plenty of times that I'd like the rear locker locked in 4-HI, dune riding, mud running, snow.... Anyone had any success?

Don't really want to interject here, but...

With the full time 4WD, and the traction control system, in the situations you describe, I just don't understand why you would need it?

[f5fstop]

Don't believe you would need it at speeds above 20 mph. The locker is supposed to be used for low speed applications; thus the 20 mph unlock. It might cause damage to the rear locker, which from my experience reading forums, means the person will remove the bypass and hit GM for the warranty.

We already have enough legitimate hits on warranty for the front axle... and that is GM's fault.


So, even though I know how, I won't say how.

[yzergod]

Too bad. The guys with a Jeep Rubicon figured it out and gladly share the info on how to. Seems like a valid reason for wanting to be locked in 4Hi IMHO.

[Sewie]

Originally Posted by yzergod

Too bad. The guys with a Jeep Rubicon figured it out and gladly share the info on how to.

Are they Jeep / DC employees?

[ChevyHighPerformance]

The e-locker is controlled by the transfer case shift control module. This module monitors both the control and return voltages from the e-locker actuator and if they are incorrect DTC-C0388 is set and SERVICE 4WD is displayed. The control module also has a free wheeling diode to accomodate the e-locker's actuator coil's inductance. The e-locker's coil normal resistance is between 2.2 and 4.3 ohms.

[yzergod]

Originally Posted by Sewie

Are they Jeep / DC employees?

I'm sure some were in the beginning. But now it is so common that aftermarket companies are offering kits. DC stated that they did not want to offer it as an option due to liability reasons (i.e. soccer mom munching rear diff in mall parking lot because she hit button accidentally) just like f5fstop stated above.

My point is that it (should) be an easy fix for somebody to figure out and the reasons stated for wanting to do it are sound. I completely understand why f5fstop doesn't want to publisize how to do it and I wasn't giving him crap. I just said it was too bad that there wasn't a quick fix out there as the original poster's reasons for wanting to do it seemed logical to me. I'm sure somebody will eventually post how to do it. If you're stupid enough to do the fix and then munch your locker, then I agree you shouldn't claim it under warranty. But, just because GM (or Jeep) doesn't offer it that way from stock is no reason to discourage somebody from doing it IMHO.

Geez, you guys are sure quick to jump somebody's ass if they don't follow the norm like sheep around here!

[HummBebe]

Originally Posted by yzergod

Geez, you guys are sure quick to jump somebody's ass if they don't follow the norm like sheep around here!

Ya think???

I simply stated that there are two other systems that would cover the needed traction in the situations you described.

How is that jumping your ass?

Hummers are more sophisticated vehicles. Comparing them to an outdated redneck system the likes of which Jeep uses is just well.....dumb. They are different. Period.

[Sewie]

Originally Posted by yzergod

.....Geez, you guys are sure quick to jump somebody's ass if they don't follow the norm like sheep around here!

Who exactly is jumping on your ass?

[HummBebe]

Originally Posted by yzergod

Too bad. The guys with a Jeep Rubicon figured it out and gladly share the info on how to. Seems like a valid reason for wanting to be locked in 4Hi IMHO.

So does that mean the Jeep guys are "cooler" than we are??

And you still have not address the need. Why when you have Traction Control and Stabilitrac?

[HummBebe]

[yzergod]

Originally Posted by HummBebe

So does that mean the Jeep guys are "cooler" than we are??

And you still have not address the need. Why when you have Traction Control and Stabilitrac?

Cooler, no (especially how you basically owned Moab on things the Jeep guys run away crying from ). A bit more open to sharing thoughts on improving factory stuff... maybe.

I'm no expert with sand, but Traction Control and Stabilitrac doesn't seem like it would be of as much a benifit as a locked rear in a 60/40 set-up. Snow and ice yes. Mud? Who cares... only rednecks play in mud.

[HummBebe]

It's designed to prevent driver error, it detects spin and sends power to the opposit wheel.

I've run sand, a little snow, and some serious mud (probably won't do that much). With the BFGs in sand and mud, it was awesome.

No worries. Only Sewie got stuck