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Location of transfer case switch - 2003 Chevrolet Suburban 2500

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The transfer mode switch is located on the drivers side of the transfer case,removal of the front drive shaft is required to access it.

Posted on Feb 09, 2010

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Posted on Jan 02, 2017

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2005 Silverado 1500 crew cab stuck in 4wd high?


How many buttons on 4X4 switch ? Or doesn't have any . What transfer case does your have ?
Transfer Case - NVG 149-NP3
Transfer Case - NVG 246-NP8
Transfer Case - NVG 261-NP2
Transfer Case - NVG 263-NP1
4X4 light saying lit ? Flashes ?
The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel.
The NVG 263 transfer case features a three button shift control switch located on the instrument panel.
Need more info . Could have DTC'S - diagnostic troube codes
DTC B0790
DTC B2725
DTC C0300
DTC C0305
DTC C0306
DTC C0321
DTC C0327
DTC C0359
DTC C0374
DTC C0379
DTC C0550

Aug 26, 2017 | Cars & Trucks

1 Answer

How do you change out 4 wheel drive switch on 2004 Yukon


Before trying to replace the switch ,are any lights flashing ? 2hi , 4lo, 4hi etc... Do you know which transfer case yours has ?
Transfer Case - BW 4482-NR4
Transfer Case - NVG 246-NP8
How many buttons ?
The BW 4482 transfer case features a 3-button shift control switch located on the instrument panel.
The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel
Before you replace the switch and finding out that it isn't the problem . The switch is a low voltage input to the tansfer case shift control module (A COMPUTER ) Could have diagnostic trouble codes stored .
DTC B0790
DTC B2725
DTC C0306
DTC C0327
DTC C0329
DTC C0359
DTC C0550
Auto part stores can not read these codes .

The BW 4482 transfer case features a 3-button shift control switch located on the instrument panel. When the vehicle has the ignition key in the RUN position, the transfer case shift control module starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/range position. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/range position. The lamp will continue to flash until all shifting criteria have been met and the new mode/range position has been reached, or has been engaged. Once the new mode/range position is fully active, the switch indicator lamp for the new position will remain ON constantly. In addition, the switch includes a VSES request button which sends a voltage signal to the transfer case shift control module. The transfer case shift control module in turn sends a request via the class 2 data bus to the ABS control module which controls the VSES system.

The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel. When the ignition key is in the RUN position, the transfer case shift control module monitors the transfer case shift control switch to determine if the driver desires a new mode/range position. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/range position. The lamp will continue to flash until all shifting criteria has been met and the new mode/range position has been reached, or has been engaged. Once the new mode/range position is fully active, the switch indicator lamp for the new position will remain ON constantly.
DTC B2725
Circuit Description
The range/mode switch circuit consists of 5 modes. The transfer case shift control module supplies 5 volts to the switch through the 5 volt reference circuit. The current travel through the resistor of the currently active mode. The current is then returned to the transfer case shift control module through the switch signal circuit.
The transfer case shift control module constantly monitors this signal voltage to determine the condition of the mode switch circuit.
When each of the modes are selected they complete a circuit through their own specific resistor. The transfer case shift control module continuously monitors the switch input to determine whether the Neutral, AWD, 2HI, 4HI, or 4LO mode was selected by the driver.

You may want to take this to a repair shop .

Jul 28, 2017 | Cars & Trucks

1 Answer

Replaced 4wd switch on dashboard, did not solve problem. 4wd doesn't connect.


Which of these transfer case's does your truck have ?
Transfer Case - NVG 149-NP3 Transfer Case - NVG 246-NP8 Transfer Case - NVG 261-NP2 Transfer Case - NVG 263-NP1
The NVG 263 transfer case features a three button shift control switch located on the instrument panel.
DTC B0790 DTC B2725 DTC C0306 DTC C0327 DTC C0359 DTC C0379 DTC C0550

The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel.
DTC B0790 DTC B2725 DTC C0300 DTC C0305 DTC C0306 DTC C0321 DTC C0327 DTC C0359 DTC C0374 DTC C0379 DTC C0550
Regardless both of these switch's are input's to a control module . There are probably DTC'S - diagnostic trouble codes stored . You should have the vehicle checked for DTC , That means taking you vehicle to the repair shop .

Mar 26, 2016 | 2004 Chevrolet Silverado 1500 Crew Cab

1 Answer

Location of transfer case module on early 2002 Ford Explorer Limited


The electronic module (located behind the glove compartment) controls the operation of the transfer case in response to inputs from the electric shift motor, 4x4 mode switch, CPP switch, BPP switch, DTR sensor, throttle position output from the PCM, front and rear OSS sensors, and the VSS.

Aug 01, 2015 | 2002 Ford Explorer

1 Answer

4x4 push button is not working about how much does


This is something you can do yourself if you have ever worked on a vehicle before. The part you need is called a front drive actuator valve. It costs about $ 50.00, GM part # 15165891.
Here is some more infor about it:

Main 4wd Components:
TCCM
- Transfer Case Control Module - Located behind the glove box. This is the electronic 'brains' behind the shifting.
Switch - The push button switch in the dash - driver input/indicator.
Encoder Motor - Located on the transfer case - This is what actually shifts the transfer case, and tells the TCCM what position it is in.
Vacuum Switch - Also located on the transfer case - This is what sends vacuum to the vacuum actuator (see below) when the transfer care is in 4HI or 4LO.
Vacuum Actuator - Located under the battery tray - This is what engages or disengages the front driveshaft.
Front Axle Switch - Located on the front axle - This is what tells the TCCM when the front axle is engaged.

If you want to try and replace it yourself, please let me know how it goes.

Feb 11, 2010 | 1998 GMC Jimmy

1 Answer

Where is the actuator switch located on the transfer case?(the switch that engages the 4wd)Thanks!


The actuator solenoid along with the axel solenoid
switch are located at the rear of the front axel on the
right side.And the transfer case switch is located on
top of the transfer case left side. Hope this helps.

Feb 08, 2010 | 1993 Chevrolet K1500

2 Answers

2005 Ford F150, 5.4L V8, 4x4; The transfer case


Encoder motor located on the transfer case is usually the problem. It is the motor that shifts the transfer case.

Sep 28, 2009 | 2005 Ford F-150

1 Answer

Where is the vacuum switch located at on the transfer case and can it be changed without pulling the transfer case? its a push button on the dash we pulled the vac hose off the accuator and there is no...


The switches are a very common problem on the S series. It screws into the top of the transfer case. The easiest way to reach it is going up next to the front drive shaft. There should be 3 vacuum lines going to it that attach in a single rubber plug onto the switch. Hope this helps.

Jan 08, 2009 | 1999 Chevrolet Blazer

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