HVAC Recalibration

10

Asked by Mar 19, 2017 at 05:50 AM about the 2013 Chevrolet Avalanche LTZ Black Diamond Edition 4WD

Question type: Maintenance & Repair

I recently had my 2013 Avalanche not start on me.  
As I clearly had no power I checked the battery
terminals and found that the negative was loose,
probably not tightened during the recent pre-
purchase inspection.  I tightened down the terminal
but found that all of the measurement features went
metric.  I presume that this was the factory settings
as the truck was originally from the Canadian
market.  Changing back to the English system was
simple but from that point on my air conditioning
has been inoperative.  Reading online I found that
this is a common problem for GM vehicles when the
battery is disconnected and requires that the HVAC
system be recalibrated.  I have followed the
instructions several times but have not been able to
resolve the issue.  In the recalibration steps it says
to pull the HVAV/ECAS fuse.  I have tried pulling
fuse number 55 repeatedly as part of this process
but have had no success.  Am I pulling the wrong
fuse?  If so which fuse should I be pulling for my
particular vehicle?  Could there be a fault code that
I don't know about that is keeping the recalibration
steps from being successful?

2 Answers

116,575

http://sparkys-answers.com/2011/08/hvac-actuator-recalibration- procedure.html

1 of 1 people found this helpful.
10

That is the guide I have been using. I have tried pulling fuse number 55 and disconnecting the battery with no success. Any other thoughts?

1 of 1 people found this helpful.

Your Answer

Chevrolet Avalanche Experts

  • #1
    Tom Demyan
    Reputation
    370
  • #2
    David Scott
    Reputation
    180
  • #3
    Oscar Leon
    Reputation
    150
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,720 Great Deals out of 157,547 listings starting at $1,000
Used Ford F-150
3,014 Great Deals out of 230,527 listings starting at $1,300
Used Chevrolet Tahoe
813 Great Deals out of 40,152 listings starting at $1,900
Used Cadillac Escalade EXT
15 Great Deals out of 617 listings starting at $4,995
Used GMC Sierra 1500
1,139 Great Deals out of 61,781 listings starting at $1,295
Used Chevrolet Colorado
332 Great Deals out of 43,011 listings starting at $1,299
Used Cadillac Escalade
279 Great Deals out of 12,215 listings starting at $2,995
Used Toyota Tundra
627 Great Deals out of 35,737 listings starting at $1,500
Used Chevrolet Suburban
509 Great Deals out of 23,422 listings starting at $2,700
Used GMC Yukon
500 Great Deals out of 19,420 listings starting at $1,995
Used Chevrolet Camaro
382 Great Deals out of 31,399 listings starting at $3,495
Used Toyota Tacoma
560 Great Deals out of 40,666 listings starting at $2,600
Used Chevrolet Silverado 2500HD
430 Great Deals out of 31,656 listings starting at $2,500
Used Honda Ridgeline
84 Great Deals out of 6,290 listings starting at $4,500

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.