I have an 03 grand caravan sport with 152km on it. My a/c will not blow cold air. I have had it checked and the pressure is good so no leaks. the blower motor works ok. the relay is good and i believe the fuse is fine too. Now when the relay from ipm box was by passed the clutch engaged and it blew cold air. What could be my problem I'm thinking it is something small but what. Oh I have replaced the switch inside too