Rear E-Locker

[DURAMAX TIM]

Originally Posted by HummBebe

TC 1 = 4hi lock ?
TC 2 = 4lo lock ?

TC 1 is standard
TC 2 allows wheel spin and keeps the brakes from slowing the spinning wheels for mud and snow.

I always used e locker and TC2 in 4 low so don't know if TC2 worked in HI lock or open.

I just don't want TC to slow the wheels down when u need the wheel spin and the e locker is going to keep the rear tires same speed so the TC won't slow one rear wheel if it's turning faster because it has a little less traction.

will the e locker work in 4 hi in the H3?

[fw888]

where is the traction control ? i know there is only a button for stabiliztrack on the control panel..

[HummBebe]

Originally Posted by DURAMAX TIM

will the e locker work in 4 hi in the H3?

No. It will disengage at 20MPH.

So can you go over 20MPH in TC 1?

[HummBebe]

Originally Posted by fw888

where is the traction control ? i know there is only a button for stabiliztrack on the control panel..

That is because the Traction Control system is always on. You cannot turn it off.

Where is it? In the puter

[ChevyHighPerformance]

Wow, strong opinions either way - I don't know what the right answer is, but I will add it is very difficult to design a traction system for all surfaces.

The TC switch shuts off both the stability and traction systems.

There are two wires going to the e-locker: light green and black (I think these are the colors). +battery is switched to the light green wire and the black wire returns to the transfer case shift control module where it connects to ground through a resistor/current limiter. The final circuit will be pretty simple but you need to do serveral tests first to understand what is inside the control module.

For example, you'll need a diode to clamp the inductive current for the e-locker coil to prevent an insulation breakdown when you interrupt coil current.

[HummBebe]

Originally Posted by ChevyHighPerformance

The TC switch shuts off both the stability and traction systems.

TC Switch?

[ChevyHighPerformance]

Sorry, I wasn't clear - Traction Control System - TCS switch.

[HummBebe]

On which model H2 or H3?

If H3, what switch are you referring to?

[ChevyHighPerformance]

I was refering to the H3. This is the rightmost switch - picture of a car with squiggly lines underneath it. Hold it in for 5 sec and this will disable the traction control and the stability system (if you have it).

[HummBebe]

Originally Posted by ChevyHighPerformance

I was refering to the H3. This is the rightmost switch - picture of a car with squiggly lines underneath it. Hold it in for 5 sec and this will disable the traction control and the stability system (if you have it).

That is the stabilitrac switch. Different system than the traction control.

You cannot turn off the traction control

[yzergod]

Originally Posted by HummBebe

You cannot turn off the traction control

You are incorrect sir/maam ()... there is a switch on the column... the ignition switch! That will turn off the traction control. But I don't think it's useful over 5 mpg (I could be wrong )!

[HummBebe]

Sir????

You =

[ChevyHighPerformance]

Here are two pages from the owners manual. You can get the electronic owners manual from www.mygmlink.com after you register.

[fourfourto]

Originally Posted by ChevyHighPerformance

Here are two pages from the owners manual. You can get the electronic owners manual from www.mygmlink.com after you register.

That sure explains it

[DURAMAX TIM]

Originally Posted by fourfourto

That sure explains it

so lets see, we turn OFF the TC/SC when in mud and snow or it will limit wheel spin which may get u stuck.
Now the e locker kicks out over 20mph, so if play off road in muddy or snowy conditions we just have to keep the speedo under 20mph

I know I've hit a lot more than 20mph in mud pits and snow drifts not to mention slippery hills.


I still want my elocker to stay on when I turn it on.

[DURAMAX TIM]

***crickets****




now what?

[SR1355]

Originally Posted by DURAMAX TIM

so lets see, we turn OFF the TC/SC when in mud and snow or it will limit wheel spin which may get u stuck.
Now the e locker kicks out over 20mph, so if play off road in muddy or snowy conditions we just have to keep the speedo under 20mph

I know I've hit a lot more than 20mph in mud pits and snow drifts not to mention slippery hills.


I still want my elocker to stay on when I turn it on.

[ChevyHighPerformance]

I made the mistake of not getting the off-road package so I can't just try this on mine. How about this. With the key off, disconnect the connector from the e-locker. Measure the resistance from the black wire (going to the control not to the e-lock coil) to a good ground as close to the control as possible. Zero out the probe resistance first.

[Hal]

I have the service manual and pages 4-150, 4-156, 4-160 explain the following respectively: Differential lock schematics, Circuit Description, and Electronic Diff Lock Will Not Disengage troubleshooting. I wish I could post this and have it be readable or be able to explain it. (I'm a Pharmacist not an Electrical Engineer) if anyone else can post this info for ChevyHighPerformance to look at we might have an answer.

[H3PAC]

Originally Posted by Hal

I'm a Pharmacist not an Electrical Engineer.

Damn it Jim!