Q&A

Check engine light comes on for anything that affects vehicle emissions (pollution). If the transmission has a 'fault' that is effecting performance or in any way raising the pollution levels directly or indirectly it will set the P0700 code you mentioned. P0700 is a generic code for a transmission fault , if A/T is scanned , most likely will have other more specific codes to aid in diagnosis. Dealer or better equipped shop not parts store code reader is needed.