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Service 4wd and traction control light comes on while driving. I’ve heard this could mean a bad dtcm but I’m not sure any suggestions
 

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Service 4wd and traction control light comes on while driving. I’ve heard this could mean a bad dtcm but I’m not sure any suggestions
FCCW also message or not?
Diagnosed ,rear diff motor..that is with mine,2015 Summit Eco D,
(Germany)
 

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Quadra-Drive II
2020 Trailhawk
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815 Posts
I would check the transfer case fluid.....when was the last time fluid was changed? Also for the front and rear axles...I would change those fluids at the same time as the transfer case.
 
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