My car(automatic) is stuck on 1st gear, won't shift. Reverse works fine. on 2002 Dodge Neon

My car is stuck on 1st gear and won't shift, the reverse works just fine. I have replaced the throttle and checked the gear shift linkage and it seems fine. I have not taken it to the mechanic, hopping to fix this at home.

2 answers
Answer ,if the speed odometer don't work then its your speed censer out put side
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