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09-04-2006, 06:24 AM
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Hummer Authority
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Join Date: May 2006
Location: Arvada, CO
Posts: 1,139
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Re: e-locker failure
Guess I wasn't clear ... the transfer case is fine. It shifts between 4lo and 4hi locked/unlocked just like butter. It's the rear locking differential that won't engage.
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2007 slate blue 5spd w/ adventure package. Still pretty much stock ... dammit
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09-04-2006, 07:01 AM
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Hummer Expert
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Join Date: May 2006
Posts: 616
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Re: e-locker failure
I'm not an expert but I'd check the wiring going into the diff. There's most likely a connector and it may have come disconnected.
If that don't work take her to the dealer.
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Black 06 H3, Adventure Package, Monsoon Sound, Sunroof, Chrome and Tow Package
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09-04-2006, 02:22 PM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
Posts: 4,744
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Re: e-locker failure
Quote:
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Originally Posted by deserth3
I'm not an expert but I'd check the wiring going into the diff. There's most likely a connector and it may have come disconnected.
If that don't work take her to the dealer.
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Worth a try, but it should set a code (C0388), and turn on the indicator lamp.
It is a simple circuit, the TCCM supplies 12-volts to the rear locker solenoid on the (L-Green wire), and supplies a ground via the black wire to the TCCM. This is also the monitoring circuit. If the TCCM sees the request for axle lockup via the switch, and it energizes the actuator, and no feedback signal is obtained it should set the code.
Wisha Haddan H3:
Try this....
Go back to normal 4-wheel, then bring the vehicle down to less than 3 mph or to a full stop, put the trans in neutral, engage 4-wheel low lock and immediately engage the rear locker. Might work....
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Black Sheep Hummer Squadron
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09-05-2006, 05:37 AM
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Hummer Authority
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Join Date: May 2006
Location: Arvada, CO
Posts: 1,139
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Re: e-locker failure
Thanks F5. I tried that and it seemed to work ... at least the light stayed solid this time 
I didn't have a chance to really test it tho, so I don't know if it's actually locking the axle. I'll have service check it out this weekend when I use my free oil change.
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2007 slate blue 5spd w/ adventure package. Still pretty much stock ... dammit
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09-05-2006, 12:35 PM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
Posts: 4,744
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Re: e-locker failure
Easy to test, hang one of the wheels off the side of a cliff and see if it turns at the same speed as the other wheel.
I would guess that if the light stays on, it is engaged. The TCCM should turn off the light if not engaged, and flash if it can't engage, then turn it off.
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Black Sheep Hummer Squadron
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09-05-2006, 03:00 PM
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Hummer Professional
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Join Date: Jul 2004
Location: Leduc, Alberta, Canada
Posts: 375
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Re: e-locker failure
Quote:
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Originally Posted by f5fstop
Easy to test, hang one of the wheels off the side of a cliff and see if it turns at the same speed as the other wheel.
I would guess that if the light stays on, it is engaged. The TCCM should turn off the light if not engaged, and flash if it can't engage, then turn it off. |
Or find a neighbour's new lawn and drive in a tight circle. |
09-05-2006, 03:08 PM
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Hummer Guru
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Join Date: Nov 2005
Location: rollin with Beebs & F5
Posts: 5,546
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Re: e-locker failure
this is a good test too 
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GREEN no BLING , LINE-X & 35's , Adv. , monsoon & some other crap too
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