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1st Gen Durango 1998 - 2003 Durango's

Transfer Case Control Module Location, TCCM

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  #81  
Old 09-24-2011, 03:56 AM
D0dgeDak D0dgeDak is offline
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Default Something New.

So as I was driving to work today I see that the lights on the selector switch all lit up and then went out. This happened three times. I have not checked the connection to the transfer case yet but will do so today. Just thought that the new developments might shed some light.
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  #82  
Old 10-01-2011, 08:04 AM
skyward skyward is offline
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I need to replace my TCCM, as well. How do you release the electrical connectors? Do they have only the one lock tab (that can be seen) on the bottom side of the connector, or is there also a hidden one on the top side of the connector that needs to be squeezed? Thanks!
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  #83  
Old 10-02-2011, 12:16 PM
cabindwellr cabindwellr is offline
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It's been awhile but I think think the release tab is only on one side. Most are. The conventional technique for removing sticky connectors is to oscillate the connector in the X and Y axis with 2 Newtons of tab pressure. The connector should release in the direction that propels the back of your hand into the sharpest object under the dash.

On a more serious note (not related to your post, Skyward): We're all happy and desperate for help when we consult the forum and are glad for the help the forum provides. When your crisis is resolved PLEASE take the time to post your results so others can learn from your experience. I'll also take this opportunity to thank Hydrashocker & Sharpstr325 for all their time, expertise, and patience helping the brother&sisterhood. Enuf said.
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  #84  
Old 10-02-2011, 02:42 PM
skyward skyward is offline
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You were precisely correct, even to the hand propelling into the sharpest object!!

Further questions...Is it necessary to disconnect the battery negative cable when installing the replacement TCCM? Does the TCCM come 'online' without any programming?

Thanks!

Last edited by skyward; 10-02-2011 at 03:46 PM.. Reason: addition of info
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  #85  
Old 10-02-2011, 09:09 PM
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yes you should disconnect the battery whenever you do any electrical work
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  #86  
Old 10-10-2011, 05:06 PM
skyward skyward is offline
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Default TCCM Replacement

Okay, I found a TCCM from a junkyard http://www.uneedapart.com/ ($40.00 including shipping) and installed it. My 2WD/4WD switch lights up and works as advertised!

I might point out that no one could offer me any compelling reason to disconnect the battery and I did not see it necessary to disconnect it for this, so I didn't.

Thanks, everyone, for your inputs and assistance!
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  #87  
Old 10-10-2011, 10:18 PM
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the reasoning behind it is simple, whenever you are doing electrical work you run the risk of sparking and shorts, if you have a short or a surge (sparking is indicitive of a surge) you run a very high chance of damaging one of your electronic modules (usually the one you are working on)
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  #88  
Old 11-04-2011, 09:45 AM
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I was looking for a reason why my dash is showing "Service 4wd" The 4Wd is working fine, but this light is always on. Was told that this could be the TCCM but my understanding is that if this module is broken, it will not shift the drive from 2Wd to 4Wd.
Is this correct? If so, is there another module that could cause this failure indication?
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  #89  
Old 11-04-2011, 05:38 PM
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Most likely it is the module, but get under it and pull the harness off the T-case. Look for corrosion and unplug and plug in a few times to make sure it is getting a good connection.
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  #90  
Old 11-05-2011, 01:36 PM
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Thank you hydrashocker. I will do that and keep you posted.
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  #91  
Old 11-16-2011, 08:47 PM
banuelos39 banuelos39 is offline
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I got a 02 durango 4wd its not working I dont see a service light or nothing just no lights on the switch and I try to use the 4wd and nothing can this be the same problem?
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  #92  
Old 11-28-2011, 04:14 PM
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Default TCCM problem

Hello Hydrashocker.

I checked the connections to the TCCM and found no problems. I will order a new module and keep you guys posted.

Thank you,
Icedodge.
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  #93  
Old 12-28-2011, 04:44 AM
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Hello Dodge owners.
I just replace the TCCM in my Dodge Durango SLT+ 2001, 4,7L and no change. Still get the "Service 4WD" light. The trans is working in all drives, 2WD,4WD and 4WD Low. Lights indication on the switch. Any ideas?
Thanks.
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  #94  
Old 12-28-2011, 07:51 AM
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When you replaced the module did you reset the PCM? That might help, not 100% sure but it is worth a shot.
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  #95  
Old 12-28-2011, 08:39 AM
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No, did not reset the PCM. Only disconnected the battery neg. cable and reconnected. The light came back on after three starts. Will have a friend reset the PCM and see if it solves the problem.
Thank you Turbo Stixx.
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  #96  
Old 01-17-2012, 03:51 PM
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Hey guys, just thought I'd chime in on this to say thanks. I had the same symptoms with my 01 Durango 4WD system. No 4WD, no lights on the switch, no Service 4WD indicator light. Checked all of the terminals and they were all clean and seated well. No voltage at the transfer case motor. So figured it must be the magic box aka TCCM. Found a used one at a local part yard. Dropped 100.00 on a hope and prayer after reading this thread and several others. Installed it and once again I have 4WD. Yeah!

Good help with this issue. Thanks,

Ron


Are the old boxes repairable? I also opened my old unit and it looked perfect. Nothing obvious. Would it be worth looking for another one to have around as a spare? I only got 180K miles on the original.
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  #97  
Old 01-18-2012, 06:43 AM
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Angry Service 4WD light still on

Just had the PCM reset and the service 4wd went off just like I disconnected the neg. cable, but came back on after three starts. I was wondering if the ABS system can effect this "service 4WD" light. I notice when I start driving that the brakes are very reactive, like the ABS system is not working and braking is abrupt at first but then becomes more smooth like the ABS system is working again. What do you guys think, could the abs sensors or speed sensors be acting up on me slowly?? causing the service light to come on????

Thank you,
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  #98  
Old 01-20-2012, 10:13 PM
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I don't think so.

What you need to do is take the harness off the T-case motor and see if you get power at all down there. When you shift the power will come on and go off because the motor only cycles to engage 4X4 in and out.

If you have power and everything checks out then I would replace the T-case shift motor.
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  #99  
Old 01-21-2012, 12:13 PM
ICEDODGE ICEDODGE is offline
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Hi hydrashocker. The strange thig is that everything is working properly, 2wd, 4wd high and low. All lights on the shifting lever/**** are also working.
Something is affecting the computers and causing the light to come on, but i have tried everything in the manual that could cause this problem, but nothing works. I am almost to the point of removing the bulb from the dash.:-(
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  #100  
Old 01-21-2012, 02:24 PM
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On the shift motor is also a range sensor, it is one assembly. The range sensor might be out causing the issue and turning back the shift motor back into gear because it never made the shift, well as it see's it.

In this case I would say it is probably shift motor assembly, remove & replace.
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Old 01-21-2012, 02:24 PM
 
 
 
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02, 2001, 2005, 4x4, case, control, dakota, dodge, durango, location, module, reset, schematic, tccm, transfer

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