B374A-61 Code Error
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B374A-61 Code Error
Hi everyone, about 2-3 days ago I replaced the starter motor, and the battery was disconnected, and it went flat. After replacing the starter motor and installing a new battery with improved parameters (60AH -> 77AH), I noticed that there was no air coming from the driver's overhead vent. The passenger's air conditioning is working and cooling, but there's no air coming out. The error I'm getting is: B374A-61 Airflow Control Feedback Circuit Stuck. I've tried restarting and recalibrating, but I can't. How do I do it? How do I approach this problem? Everything was working just a moment ago, but the thought of disassembling the entire dashboard, as I've read on the forum, terrifies me. In Poland, probably few people would do this.
Thanks in advance for your help. If this is wrong place, please moderator move it. Thanks and sorry.
Thanks in advance for your help. If this is wrong place, please moderator move it. Thanks and sorry.
Last edited by veneficus; Apr 11, 2026 at 04:00 PM.
Le Mans Master
Joined: Jun 2019
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From: Loveland
The vent blend door is known for failing, lets hope not. How did the installation of the new battery go? There is a little black wire that needs to be connected correctly. Could some of the A/C settings have dropped out when you removed the battery?
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I checked the battery, the cable is there, everything else works properly, charging is working normally, I think it happened between disconnecting the battery, etc. The old battery was OK, 1 year old, but it was simply too weak, judging by the specifications. Everything else works fine, there is no information about low voltage or other errors. When my battery was discharged by the starter, the air conditioning could have been turned on. but i dont know, i will try tommorow to recalibrate it again.
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I will check it again, but when i changing the battery i do not remove this black ground wire, I just use this one left screw.
Melting Slicks
Joined: Feb 2018
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From: North Texas
I don't want to sound condensending but you didn't by chance connect the battery polarity in reverse or possibly shorted the positive terminal causing a large ark resulting in a voltage spike?
Long shot I know, just a thought.
When a problem occurs always go back to the last thing you did.
Best of luck.
Long shot I know, just a thought.
When a problem occurs always go back to the last thing you did.
Best of luck.
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Thread Starter
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Hi, not a chance to make a large ark, I'm doing it all by myself, and also an error occurred before charging the battery.
Some mechanics run recalibration two times from the computer, but nothing works. So, probably need to get out of the dash. Some mechanic told me to take out the dash it will be 600 usd so not that bad.
Thank you guys for the help.
Some mechanics run recalibration two times from the computer, but nothing works. So, probably need to get out of the dash. Some mechanic told me to take out the dash it will be 600 usd so not that bad.
Thank you guys for the help.
Drifting
Joined: Dec 2019
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From: Blacksburg Va
Just to be sure we are all talking about the same small wire look at the first picture in this thread.
Ground wire on battery - CorvetteForum - Chevrolet Corvette Forum Discussion
Ground wire on battery - CorvetteForum - Chevrolet Corvette Forum Discussion
Thread Starter
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Just to be sure we are all talking about the same small wire look at the first picture in this thread.
Ground wire on battery - CorvetteForum - Chevrolet Corvette Forum Discussion
Ground wire on battery - CorvetteForum - Chevrolet Corvette Forum Discussion