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post #1 of Old 01-20-2019, 02:35 PM Thread Starter
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Help with Nitro transmission shift problems code 0103

Hi all,
I'm fighting an issue with my '07 Nitro R/T (125000 miles).
When it acts up, first the park lock gate starts clicking (like when you press on the brake pedal to pull it out of park) but this is happening when it is in drive.
The next thing it does is make it so it doesn't take throttle (5 MPH max) all the rectangles light up around the gear indicators , then the check engine light comes on, the code is 0103, lost communication with the gear shifter.
I also had it go into limp mode one time, 2nd gear but took throttle, I could go 25 to 30 MPH stuck in 2nd gear.
If I put it in neutral and kill the motor, start it back up, it operates normally until it glitches again. It may go 5 miles, or 500 feet.
I disconnected the battery for a couple hours after the first time it did this and drove normally for about 2 weeks, then came back worse than before.
Has anyone had this happen to their Nitro?
Thanks for the help

V10 Ram truck club member #3
'96 Ram 2500 V10 4X4 extended cab, long bed for towing my 28-foot 5th wheel Alfa toy house.
1966 Monaco 500 with a 365 horse power 440 and almost all options, my project car.
'07 Nitro R/T
My son has a '69 Dodge Coronet 440 with a warmed up 318 4bbl
Economy vehicle: Yamaha FJ1200
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