Does yours have
Electronic Shift on the Fly (ESOF) Operation
The electronic shift on the fly (ESOF) system is an electronic shift 4x4 system that allows the operator to choose between two different 4x4 modes as well as 2-wheel drive. The operator can switch between 2WD and 4H mode at speeds up to 88 km/h (55 mph). To engage or disengage 4L range, the vehicle speed must be less than 5 km/h (3 mph), the brake pedal depressed, and the transmission must be in NEUTRAL.
The transfer case is equipped with an electromagnetic clutch which is located inside the case. This clutch is used to spin up the front driveline when shifting from 2WD to 4H mode at speed. When the control switch on the instrument panel is turned, the generic electronic module (GEM) recognizes that a shift has been requested and activates the electromagnetic clutch and the relays which power the transfer case shift motor. When the shift motor reaches the desired position, as determined by the contact plate position inputs to the GEM, power to the shift relays and motors will be removed. When the transfer case front and rear output shafts are synchronized, the spring loaded lockup collar mechanically engages the mainshaft hub to the drive sprocket. Finally, the front axle collar is engaged and the electromagnetic clutch is deactivated.
After reading this material I would not think it was the switch . Maybe an input problem to the GEM module .
Feature Inputs:
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
On
these issue,there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below:---
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
4X4 Truck makes roaring
noise in the front end?
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
Car will not go into 4WD
high or 4WD low?
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
4 wheel drive system will not disengage?
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
4WD light is flashing and
beeping? NO 4WD high?
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
2002 Jeep Wrangler: 4WD Idiot Light is ON?
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
4x4 front differential will not engage the
axle on ford?
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
4x4 will not engage on Ford F150?
http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html
-------------
Dodge Ram 4x4
light keeps flashing
4X4 LOW LIGHT
IS FLASHING ON DASH
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
Ford 4x4 front wheels will not engage?
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
On
these issue,there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below:---
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
4X4 Truck makes roaring
noise in the front end?
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
Car will not go into 4WD
high or 4WD low?
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
4 wheel drive system will not disengage?
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
4WD light is flashing and
beeping? NO 4WD high?
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
2002 Jeep Wrangler: 4WD Idiot Light is ON?
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
4x4 front differential will not engage the
axle on ford?
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
4x4 will not engage on Ford F150?
http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html
-------------
Dodge Ram 4x4
light keeps flashing
4X4 LOW LIGHT
IS FLASHING ON DASH
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
Ford 4x4 front wheels will not engage?
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
On
these issue,there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below:---
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
4X4 Truck makes roaring
noise in the front end?
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
Car will not go into 4WD
high or 4WD low?
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
4 wheel drive system will not disengage?
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
4WD light is flashing and
beeping? NO 4WD high?
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
2002 Jeep Wrangler: 4WD Idiot Light is ON?
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
4x4 front differential will not engage the
axle on ford?
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
4x4 will not engage on Ford F150?
http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html
-------------
Dodge Ram 4x4
light keeps flashing
4X4 LOW LIGHT
IS FLASHING ON DASH
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
Ford 4x4 front wheels will not engage?
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
150 views
Usually answered in minutes!
×