error code PO113A transmission not shifting on 2000 Saturn SL1

when check engine light is on transmission will not shift. Just replaced transmission. when connected to computer error code PO113A shows up when I clear the code transmission will shift. when I disconnect computer check engine light comes on and transmission will not shift How do I fix it.

Asked by for the 2000 Saturn SL1
Take it to aamco for free test.