Rear E-Locker

[SR1355]

I've searched thru a few threads but with no luck. Has anyone successfully bypassed the lo-4wd control of the rear locker?

[HummerHippy]

I'm no mechanic, so I am not sure why you want to by pass this, but I have a switch above the radio, where the 4hi lock, 4Low Lock etc buttons are. One is to engage/disengage the rear locker. And as far as I know, the rear locker is only available in the 5speed manual trans.

[Sewie]

Originally Posted by HummerHippy

I'm no mechanic, so I am not sure why you want to by pass this, but I have a switch above the radio, where the 4hi lock, 4Low Lock etc buttons are. One is to engage/disengage the rear locker. And as far as I know, the rear locker is only available in the 5speed manual trans.

The locker is availabe with either transmission and the bypass he's referring to is so that it can be engaged in 4Hi-Lock. From the factory, you can only engage the rear locker when in 4Lo and it automatically disengages if you go over 20mph, IIRC.

There was some talk about this on here before. But I haven't seen anyone post that they have successfully bypassed it in the H3 yet.

[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.

[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.

[DennisAJC]

Originally Posted by Sewie

The locker is availabe with either transmission and the bypass he's referring to is so that it can be engaged in 4Hi-Lock. From the factory, you can only engage the rear locker when in 4Lo and it automatically disengages if you go over 20mph, IIRC.

There was some talk about this on here before. But I haven't seen anyone post that they have successfully bypassed it in the H3 yet.

The rear locker can be modified to work "anytime". There is a way where you can add a "bypass" wire to trick the CPU that it was in 4-low. It's been done many times with Tacomas and some Heeps. I'll try and take a more deeper look into this.