Fan control

[Don Mason]

I have an 02 trailblazer and the fan control works fine on the 1 - 4 settings but the fan will not operate on the number 5 setting? any ideas on this. Thanks in advance. -Don

[mvftw]

Should be your resistor pack. It sits under the passenger side dash, on the bottom of the fan assy. 2 screws and a cable. It's about 2"x5". About $30 & 15 mins...

[tahawus84]

Change the blower relay in the under hood fuse box.