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Heater quit working

Tiny
THERESA WALSH BYERS
  • MEMBER
  • 2005 CHEVROLET COLORADO
  • 4WD
  • 20,000 MILES
Husband changed blower resister and the plug. The blower motor is getting power, checked it with a tester and he straight wired the blower motor so he knows it runs. After he puts everything back together heater still doesn’t work. Help! We’re not mechanics, just trying to save a huge shop bill because he says it’s got to be something simple.
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Monday, February 3rd, 2020 AT 7:23 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

I attached a wiring diagram for you to view. Make sure with the key on you have power on both sides of the blower motor.

Power goes from there to the blower resistor and the control module. Check the fuses for power to the module.

The issue is either wiring or the control module itself.

https://www.2carpros.com/articles/how-to-check-wiring

Let me know the results.

Roy
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Tuesday, February 4th, 2020 AT 6:11 AM

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