blower will not turn on?

2007 CHEVROLET TRAILBLAZER
1,970,000 MILES • 2.3L • V6 • 4WD • AUTOMATIC
Avatar
SUSANHUDGINS
  • MEMBER
  • 1 POST
The dash indicator lights come on when you turn the blower fan to one to four and blower will not turn on. but lights shut off when you turn it to five and the fan comes on. I have replaced the blower and the resistor now i am at a loss. please help I need truck badly. Thank you
Oct 14, 2017 at 6:19 AM
Advertisement
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
The first step would be to test for power and ground arriving at the motor. Which one is missing will determine where we go next. Check out the diagrams (Below). Please let us know what happens.

Image (Click to enlarge)
Attached Media
Oct 14, 2017 at 7:38 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle