I'm trying to access mode 22 enhanced diagnostics on a 2006 Chrysler Sebring 2.7L. It has the J1850 VPW protocol / bus. I've tried sending the header 24 10 F1 and the generic VPW header 6C 10 F1 along with 22 07 77 (0777 supposedly being misfire counts) but I get no response. Any one here know how to request mode 22 data from Chryslers? or maybe I'm using the wrong header?
