A central figure at Nissan Motor Co. who was instrumental in the downfall of former Chairman Carlos Ghosn and a key go-between in the automaker's talks with partner Renault SA is under pressure to leave the company following a pay scandal, according to sources with knowledge of the matter.

The push to oust Hari Nada, 55, which has the support of Renault, may lead to him being forced to resign and could come as soon as a board meeting Tuesday, the sources said, asking not to be identified because the information isn't public.

Nada is cooperating with prosecutors under a plea-bargaining agreement in their case against Ghosn for financial crimes, people with knowledge of the matter have said.