I also have 2001 v70 xc. getting p1237. Can some one advise what could be wrong. None of the OBD2 tools are giving any reason.

I have same model & make. 2001 v70 XC Automatic Transmission. Could you please help me with below two questions. Any specific reason, most of the users are recommending regular Drain and Fill than a complete transmission flush ? In cold start or hot start, when change the gear from Park > Revers...