twfurst
Junior Member
- Joined
- Feb 28, 2024
- Posts
- 2
- Reaction score
- 0
- Location
- Griswold, CT USA
- Ram Year
- 2012
- Engine
- 6.7L Cummins
I have a 2012 3500 4x4 with 6.7L Cummins. I have been getting an intermittent 'SERVICE 4WD SYSTEM' message and warning light on the dash. It seems to happen only after driving at steady speeds, and will go away once the vehicle comes to a stop. This has been going on for almost a year.
I have read that it could be a few different items:
The truck has 206K on it and I am trying to keep it for quite a few more. Love the truck, just want to get this 'bug' worked out. I live in CT and have driven it to Chicago twice, Tennessee more times that I can count, North Carolina. I love driving it, just want to get it back to not yelling warnings at me. Hoping I can get some experiences from this community as well as solutions.
I have read that it could be a few different items:
- Transfer case actuator
- Are there any specific signs/symptoms I should be looking for? I have not had any issues with the 4WD working at all, nor have I had any issue with the cruise control working (I had read that in some instances when this light comes on that CC can get disabled). Really hoping this is not the issue, as I understand that this item requires a VIN programming at the dealer ($$$$).
- Vehicle Speed Sensor
- Both front hubs have been replaced on this truck. One prior to 100K and the other around 150-175K. With the cost of these around $500 now, not really trying to just swap them out to see if it resolves it, to find it doesn't.
- Wiring issue
- I have not crawled under the truck to look at the wiring for the t-case yet. The post where I saw that a broken wire was the culprit was for a '16 2500 model, and I believe they have different configuration as I do not have wiring at my front axle like that post depicted.
- Drivetrain Control Module
- Don't even want to begin to think about what the cost of this thing is...
The truck has 206K on it and I am trying to keep it for quite a few more. Love the truck, just want to get this 'bug' worked out. I live in CT and have driven it to Chicago twice, Tennessee more times that I can count, North Carolina. I love driving it, just want to get it back to not yelling warnings at me. Hoping I can get some experiences from this community as well as solutions.