The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

95 S_Trucker · 06-29-2018, 11:30 AM

You are correct. You should have 12v at the orange wire from the blower switch to the control side of the relay(when the key is on and the switch is on high speed).

06-29-2018, 11:30 AM	#12
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,179	Re: 99 K1500 Suburban no high speed ac fan You are correct. You should have 12v at the orange wire from the blower switch to the control side of the relay(when the key is on and the switch is on high speed).