'97 XLT Transmission Case Problem

[UdoM]

Hello All,

when I turn my truck hard to the right and hit the accelerator I notice a funny noise from the left front wheel, as if it is not engaging from 4 wheel. We changed a module in the transfer case but the noise is keeping on going and the 4 wd lights are flashing. When I try to switch into 4 wd the light is not coming on.
We did a scan and got the error codes P1808 an P 1804.
Can someone please give me some advice what this means and what to do??
Sorry, but I'm really not a prof here.

Any advice is welcome. Thanks for helping me out here.

Udo :exp:

 

[Wrench]

What model transfer case do you have? Are you sure of the Gem codes you got? I can't find any manufacture codes beyond P1783 or restart at P1900!
The 1700 series are definitely transmission codes. What module are you talking about on the transfercase? Is your tranny auto or std?

 

[osteve7]

actron look up code, for my 98 4.0 ohv says 1804 means 4wd high indicator circuit open/short to ground. hope this helps

 

[osteve7]

1808 says 4wd low indicator circuit circuit malfuntion

 

[UdoM]

Hi all.
wish you all a happy Easter.

Thanks your very much, espascially osteve7. Hope this is going to help me lot.
I will let you know.
http://www.explorerforum.com/forums/images/editor/color.gif
Thanks Guys
best regards
Udo Durban

 

[Vargas]

If what you changed on the transfer case was the shift motor, then the new one installed is a different version, or might be damaged. There are switches on the shift motor that tell the controller what position/range the motor is at. If the switches are damaged, or if the wiring connector configuration is different, the controller can't determine the state of the shift motor and usually refuses to do anything other than throw error codes.

The noise from the left front wheel is probably a wheel bearing going bad, but it could be something else. Please describe the "funny" noise. Growl, whine, squeal, ???