4x4 not working

[KIKER]

A friend of mine is driving a '14 3500 dually 4x4 as a welding truck. He just called and said he got stuck in the sand and his 4x4 wouldn't work. He had a check engine light and abs light showing on the dash. He has manual shift transfer case and I told him the computer couldn't bypass the manual shifting but remembered the front axle has an axle disconnect to improve fuel economy. Would having those MIL active defeat the 4 wheel drive? He got out and is going to make a trip to the dealer on Monday. The truck is a 6.4 Hemi and not a Cummins, but I don't think that would make any difference.

 

[gsbrockman]

The ABS light will prevent a 4WD shift.....whether it's a manual transfer case or an electronic transfer case.

 

[KIKER]

Thanks, I will let him know.

 

[Newsa]

A friend of mine is driving a '14 3500 dually 4x4 as a welding truck. He just called and said he got stuck in the sand and his 4x4 wouldn't work. He had a check engine light and abs light showing on the dash. He has manual shift transfer case and I told him the computer couldn't bypass the manual shifting but remembered the front axle has an axle disconnect to improve fuel economy. Would having those MIL active defeat the 4 wheel drive? He got out and is going to make a trip to the dealer on Monday. The truck is a 6.4 Hemi and not a Cummins, but I don't think that would make any difference.

I think my 2013 doesn't have the axle disconnect. That started in 2014 or 2015?

 

[Tinman]

So they are all electronically engaged, level or knob? Could this just be the traction control not allowing power to the wheels (in this case b/o of a malfunction)? That's been known to happen. Is there a way to disable the traction control for off-roading. I believe the JK guys pull a certain fuse.

 

[Newsa]

So they are all electronically engaged, level or knob? Could this just be the traction control not allowing power to the wheels (in this case b/o of a malfunction)? That's been known to happen. Is there a way to disable the traction control for off-roading. I believe the JK guys pull a certain fuse.

Mine has an ESC off button. It goes off automatically in 4th low