The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - AC compressor relay and Trinary switch wiring question

Davidf · 10-14-2021, 10:12 AM

I tried....

Do this, you don't need a trinary switch. Trigger the fan relay off of the compressor relay. Ignore PCM pins 33 and 11.

[IMG]

[/IMG]
Photo courtesy of lt1swap.com

10-14-2021, 10:12 AM	#13
Davidf Registered User Join Date: Nov 2014 Location: Austin Posts: 749	Re: AC compressor relay and Trinary switch wiring question I tried.... Do this, you don't need a trinary switch. Trigger the fan relay off of the compressor relay. Ignore PCM pins 33 and 11. [IMG][/IMG] Photo courtesy of lt1swap.com Last edited by Davidf; 10-14-2021 at 02:17 PM.