Thank you all for the advice and the description of the trouble codes! All parts used were OEM or OEM equivalent ordered on FCP euro. Checked the fan relay connections they are all clean no corrosion. I may try and swap the fan out I have a spare fan from another S70 in my parts pile that was good w...

Hello All! Recently I have been trying to trouble shoot my sisters 99 s70 115k on the clock. She has a sporadic check engine light and an unusually long delay on the radiator fan after shutdown. Codes when read are p1017 and p1620. Mind you the car runs like a champ always fires up with no misses. S...