We have a genisys with 2.0 pathfinder 05,. When using on a Chevy 1500 p/u with a 4.3 in factory mode,I went into Pathfinder for code [...] a po137b,low volt B1 sens2 [...] to code rationality ,a message comes up may take 45 [...] message stays on the screen ,n... Login to read more.