2004 Silverado PCM pin location
Thread Starter
Teching In
Joined: Jul 2014
Posts: 9
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From: Polson MT.
2004 Silverado PCM pin location I’m looking for a diagram for the pins for my 04 Silverado. I’m looking to find fan control pins. Was told 42 low speed but I’d rather have it on high speed if anything! Anyone have a diagram? I’ve looked and nothing for an 04 C1500 I’m swapping the 4.8L For a turbo’d 6.0L and want to rid the manual fan!
TECH Senior Member
Joined: Jun 2016
Posts: 22,303
Likes: 3,619
From: Central Cal.
Use 33 on the green side connector and 42 on the blue side. They are both used for stock harnesses and those made by made by Nelson and LS1Fans.
I have decided to use the AutoCool III PWM (pulse-width modulated) stand alone control. No relays to burn out. And they will...
I have decided to use the AutoCool III PWM (pulse-width modulated) stand alone control. No relays to burn out. And they will...
Thread Starter
Teching In
Joined: Jul 2014
Posts: 9
Likes: 0
From: Polson MT.
Use 33 on the green side connector and 42 on the blue side. They are both used for stock harnesses and those made by made by Nelson and LS1Fans.
I have decided to use the AutoCool III PWM (pulse-width modulated) stand alone control. No relays to burn out. And they will...
I have decided to use the AutoCool III PWM (pulse-width modulated) stand alone control. No relays to burn out. And they will...
