A/C clutch stopped engaging intermittently, after attempting to swap relays the truck will not start?

TODD MILLER2

MEMBER
2011 NISSAN PATHFINDER
4.0L
6 CYL
4WD
AUTOMATIC
105,000 MILES

Okay, so to start with my A/C clutch stopped engaging intermittently, so I was attempting to check the relay for it. I was going to try just swapping the relay with another one in the relay center. After trying to get a couple of the relays switched out the truck will not start at all. I did hear a small noise one time that sounded like it came from the starter. I tried moving a few of the relays around thinking maybe I put the bad one from the A/C in place of the starter relay, but none of that has helped with starting the motor again? Ever heard of that one?

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,609 POSTS

Here are the locations for the relays so you can check to make sure all relays are in the correct position. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

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Monday, August 21st, 2023 AT 1:20 PM

TODD MILLER2

MEMBER
2 POSTS

Thanks Ken. I got my truck running again. It was the ignition relay that was keeping it from starting. I ended up just replacing all 4 relays in the IPDM. From what I discovered reading about it those relays were not meant to be changed, you're supposed to just replace the whole thing. The body of the relays wouldn't fit in IPDM until I did a little modification on it. I had to use my Dremel tool to grind some of the plastic away so they would plug in and just used some standard 30-amp 4 pin relays. And the A/C problem ended up being the climate control switch in the dash. Thanks for the help guys!

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Tuesday, August 22nd, 2023 AT 8:07 PM

KEN L