[Kurtboyd]

I'm not getting power to my cooling fans. DTCs are PO480 and PO481. Also getting a PO645 code which is a DTC for the AC clutch relay circuit. We've tested everything and have had the fans running with a Power Probe Via the relay in the fuse box. We've basically narrowed it down to something with the fuse box or something with the PCM. All related relays and Fuses have been tested. AC has full charge.
Anyone else ever heard of this situation?

 

[guardrail]

I would check for corroded connections, I attached a couple of diagrams, might help

 

[guardrail]

Or check for a connector that was disconnected for the whipple install

 

[guardrail]

Looks like Splice 105 has all those components in common.
I attached the S105 diagram, look at the F4 location for the splice

 

[guardrail]

And fuse F77 (10A) supplies that circuit

 

[Kurtboyd]

And fuse F77 (10A) supplies that circuit

Thank you for the help. It was fuse 77. We tested all 3 relays and the related fuses. We also checked the circuits for resistance or to see if there was an open circuit. We had the fans running from the fuse panel so we knew everything on that side was good. For some reason I didn't see 77 as part of problem.

 

[guardrail]

I'm glad it fixed

 

[Kurtboyd]

If you don't mind me asking, where did you get the wiring diagram info? One looks like it may be Alldata and the other from a shop manual?

 

[guardrail]

I found a factory shop manual on ebay. I think i paid around $100 for it. Well worth the money