Hi so I’ve been on this journey trying to fix the fans on my z reading through countless forums on here trying to figure it out just lead me to this point to make my own thread.

2005 350z (DE)
mishimoto fans

I’ve been having a issue with the fans not kicking on high I have so far replaced the fans with new ones
and still no luck I have also gone and have replaced the relays on the IPDM board and the fuses when running the self diagnostic test the fans will kick into low but when it comes to kicking into high the remain on the low setting am I stumped on what to do so any input or help is greatly appreciated!