1996 Hyundai Accent Q&A

1996 Hyundai Accent Question: transmission not shifting properly

transmission has code fluid temp sensor inop. Trans. will not shift properly the car will not gain speed and looses speed on inclines -
Answer 1
tranmission has no reverise ,or shifts -
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I can hear it shift clear up to 3rd but after I don't it said corrosion of the tmc module and I don't want replace tranny again got codes checked at auto zone