HVAC Recalibration

10

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

111,735

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
    300
  • #2
    David Scott
    Reputation
    170
  • #3
    Oscar Leon
    Reputation
    150
View All

Related Models For Sale

Used Chevrolet Silverado 1500
173 Great Deals out of 9,782 listings starting at $1,700
Used Ford F-150
589 Great Deals out of 10,677 listings starting at $3,300
Used Chevrolet Tahoe
5 Great Deals out of 749 listings starting at $3,995
Used Cadillac Escalade EXT
14 listings starting at $9,500
Used GMC Sierra 1500
240 Great Deals out of 9,965 listings starting at $399
Used Chevrolet Colorado
19 Great Deals out of 1,785 listings starting at $1,999
Used Cadillac Escalade
5 Great Deals out of 460 listings starting at $4,980
Used Toyota Tundra
48 Great Deals out of 1,200 listings starting at $2,500
Used Toyota Tacoma
37 Great Deals out of 1,017 listings starting at $5,999
Used Chevrolet Suburban
4 Great Deals out of 514 listings starting at $2,871
Used GMC Yukon
11 Great Deals out of 899 listings starting at $2,500
Used Chevrolet Camaro
856 listings starting at $12,610
Used Chevrolet Silverado 2500HD
8 Great Deals out of 1,149 listings starting at $4,995
Used Dodge Charger
74 Great Deals out of 802 listings starting at $2,000

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.