Having problems with your 2003 GMC Envoy ?

Blower motor their are no power to blower motor,I replace the blower motor ,the resistor and the wiring harness that connects to the resistor,it worked for five minutes and every thing went dead .

Posted / edited by AnonymousUser on : 10-12-2018

Answers :

I'm showing a blower relay and a resistor used on models with manual ac control.
The blower motor is grounded and the fan switch provides power thru the resistor. So you have a 40amp blower fuse that handles high thru the relay, then a 30amp HVAC fuse that powers the blower thru the fan switch.
Do you not have power from the resistor to the blower motor on the purple wire ?
Repair Help & Product Troubleshooting for 2003 GMC Envoy

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