In 47 BC Pansa was appointed governor of Bithynia et Pontus, and returned to Rome sometime during 46 BC. In that same year, Caesar appointed Pansa as governor of Cisalpine Gaul to replace Marcus Junius Brutus, a post he took up on 15 March 45 BC. Around this time, he was also elected to the post of augur, one of the priests of Ancient Rome. In early 44 BC, Caesar designated him as the consul for the upcoming year (43 BC) and sometime before 21 April 44 BC, Pansa had returned from Cisalpine Gaul, and was based at Campania, waiting for the situation at Rome to settle down after the assassination of Julius Caesar on 15 March 44 BC.