Hi Everyone… Just got a 2008 Infiniti EX-35 and love it… except the AC isn't working and the days are getting hotter! The compressor isn't cycling. I've put on gauges and the pressures are OK at least on the LO side (don't have a HI side gauge).
Thought I'd check the obvious… fuses, relays etc. but I can't find the AC relay. The electrical schematic on your AWESOME online manual http://www.nicoclub.com/FSM/EX/2008/FWD.pdf
clearly shows that the magnetic clutch activates from connector E7 on the IPDM E/R pin #48 after coming from the AC relay powered from a 10A fuse #49. See page 124 of 153 of the Heating and AirConditioning Control (HAC.pdf). The diagram clearly shows the AC relay right nests to the Ignition relay… but I can only see the Ignition Really on the IPDM E/R board with all the connectors and fuses. The Starter Control Relay is on the top, centre right and there is a Empty, unmarked space immediately to the left. See service manual PG-100
I THINK the IPDM E/R is a black box crammed vertically into the SIDE of the "battery box". Fuse is good, but can't find the AC Relay…
When I slip the large rectangular plastic box up and out of the hole, take off the plastic lid, I see fuses on the sides and connectors all along the middle, with two predominant rows. Question… does the BACK of the box come off somehow exposing more relays etc on the inside back???
Second question… I want to disconnect the magnetic clutch connector on the compressor #29 at F43 and apply 12v to see if the magnetic clutch is working. But my 65 year old eyes and hands don't work as well as they used to…. I'm having trouble getting off the connector and don't want to just "give er" and chance breaking it. Can't tell what to squeeze or which way to pull. Same with the ECV connector connection 19/20 so I can check power to each.
Will also try to "turn" the compressor by hand to see if it is ceased.
But where is that darn AC Relay ????
PS - I have the images but still have to learn how to use the command. Sorry