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12-31-2008, 07:19 PM
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Hummer Veteran
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Join Date: Jan 2008
Location: Hot Springs, Arkansas
Posts: 151
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Re: Engage Rear Locker in 4-Hi on H2?
I asked this question a while back and got the same responses. My brother in law did it on his TRD tacoma.....it's called a "grey wire mod" on their forums....apparently you just have to fool the locker into thinking it is "grounded" all the time.
Can someone confirm that this has been done on an H2?
DUCK
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2003 H2, Lux & Adv Packages, Cognito 3" front suspension lift, Gobi Stealth Rack w/ Ladder, Navigation, twin Optima battery setup, AirRaid Intake, Granatelli Mass Air Flow Sensor, Flowmaster Big Block II Exhaust, Diablosport Predator Programmer,Cognito Pitman/Idler Arm Kit, Fabtech Tie Rods, Rancho RS 9000 shocks, Warn bumper and 9.5x winch, Warn light bar, PIAA's everywhere (14), everything blacked out, and rollin' on 39.5" Super Swamper IROKs on black powdercoated stock wheels.
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01-01-2009, 07:33 AM
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Hummer Authority
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Join Date: Sep 2005
Location: Texas
Posts: 1,795
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Re: Engage Rear Locker in 4-Hi on H2?
Disconeect the rear locker connector and Add a 5 Ohm resistor in series with the two wires going to toward the front of vehicle. Next, add a new 12volt circuit with switch and relay to send power to the two wires going to the connector at the rear diff. It does not matter which is + or - as it is a coil and just needs 12volts to energize.
You are done and can now manually control the locker. The resistor is to prevent "Service 4WD" error as the system looks for this resistance to be present that would normally be the resistance of the locker coil.
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H2 SUT 4.56 Gears, Front Locker, Cognito Pitman/Idler kit & Idler Pivot Kit, Fab Tech Tie Rods, True Tech Trailing Arms, Edelbrock Panhard Rod, PML rear Diff & Tranny Pans, Corsa Exhaust, Dynatech LT Headers, Diablo Predator Programmer, Volant CAI, Warn 9500 Winch, Escort 8500x50 & ZR3 Laser Shifter, Delta Light Bar, Rancho Steering Stabilizer & Bilstein Shocks, Ron Davis Radiator, PowerSlot Rotors, Hawk Brake Pads
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