Need a tuner to enable electric fans on 2500 tune that came without

[Jim_PA]

2010 Suburban 2500 - stock no e-fans.

Bought 2009 Silverado electric fans, wired everything in stock locations, discovered electric fans cannot be enabled with EFILive for E38 tunes that didn't come with electric fans from the factory.

Send me a PM if you can help! Thanks-

[svvag200]

hi
here changed:
fan type switched to PWMelectric
number of fans fitted: 2
fan PWM freq switched to 128Hz

[Jim_PA]

Thank you! Will give it a shot today ��

[Jim_PA]

This makes them come on, but the relays buzz like crazy. I believe I need to use the discrete setting for the factory truck style setup. When I switch to discrete, the fans don't turn on. I think it's getting there though.

[Jim_PA]

I think I got it! Found 2010 6.2 denali uses same OS. I was able to segment swap "system" into mine. I think it's working!!