Code 3782 AirFlow Control Feedback Circuit Malfunction

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Foggy

Full Access Member
Joined
Jul 25, 2019
Posts
1,093
Reaction score
1,403
Location
KS
Code 3782 Popped up , along with a bunch of others that cleared and did not come back.
Went out yesterday to start the Yukon and absolutely no power.
Put the charger on overnight. Battery tests out fine. (it's only 3 months old).

Anyone ever run into this code ???
I did do a search, but found nothing on our GMT900's specifically
 
Last edited:
OP
OP
F

Foggy

Full Access Member
Joined
Jul 25, 2019
Posts
1,093
Reaction score
1,403
Location
KS
This is the airflow control feedback circuit malfunction...
I could go in and do a relearn of the all the actuators I guess..
Just couldn't find anything pertaining to our trucks and
maybe a reason why my battery went dead mysteriously
Any help is appreciated
 

randeez

Full Access Member
Joined
Sep 29, 2017
Posts
7,444
Reaction score
23,678
Location
south florida
Is it going into limp mode?
Nevermind, thought this may be a throttle body problem, you're on your own for ac problems
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
26,206
Reaction score
39,274
Location
Stockton, Ca.
This is the airflow control feedback circuit malfunction...
I could go in and do a relearn of the all the actuators I guess..
Just couldn't find anything pertaining to our trucks and
maybe a reason why my battery went dead mysteriously
Any help is appreciated
just a stuck or malfunctioning actuator, most likely unrelated to a dead battery.
probably going to need to replace the actuator though if it is causing hot/cold to blow undesirably.
might want to do a draw test for the battery drain.
 
OP
OP
F

Foggy

Full Access Member
Joined
Jul 25, 2019
Posts
1,093
Reaction score
1,403
Location
KS
So I went out and cleared the code twice... Still came back...
So with my bi-directional scanner I did the Actuator Relearn Procedure
Code did NOT come back (yet)

Still no idea why for the 1st time ever my battery went dead..... Yikes
 

Enoob

Member
Joined
Jun 19, 2011
Posts
47
Reaction score
35
Foggy - did that issue ever come back after the re-learn? I have the same code (3782), along with B0433-04 and B0413-04 and interestingly, my battery shows low shortly after turning off the Yukon. New battery and fairly new alternator that both check good.
 

Forum statistics

Threads
132,311
Posts
1,865,746
Members
96,901
Latest member
ToddYYC
Top