by jcarter on Wed, 20 Feb 2008 10:38 +0000
looking over the EWD,
I guess (and i have no real idea ) if u put a kill switch that isolated the sensor from the 4wd Gear from actuating the ADD motor when you set it to L4/L2, then i guess it is possible, well at least with a manual one id say.
from the EWD it required the switch to pickup the change from H2->H4 and activate the ADD Motor.
cut from the EWD Below
""
H2 H4 (4WD)
When the 4WD shift lever turns to H4 position, this signal is input into the 4WD control ECU, and the
4WD control ECU actuates the A.D.D. shift motor.
The operation of the A.D.D. shift motor causes the A.D.D. shift fork and sleeve to move towards the front
differential, thus engaging the front drive shaft and the front differential. As a result, the drive force from
the transfer is transmitted to the front wheels.
""
so if u have a switch to break/or open that control circuit, it would not engage the front DIF.
Should be part T 3 from page 37(40) EWD.
T-3 "Is Closed with the transfer shift lever at H4 position"