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Air Bag Scan Codes

bigbipper

By bigbipper
in Ask A GM Technician

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Doug_Scott Senior Enthusiast

Doug_Scott

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Posted

Your charging system appears to be ok based on the voltages you are seeing. About all you can really do is verify that all connections in the air bag system are clean and tight.

 

Boosting a vehicle that has a completely dead battery can create issues with some of the electronics. Personally, I have never had any issues, or seen any issues first hand, with damage caused by either incorrect boosting procedure or by the dead battery causing a surge. To me, the only way I can imagine any damage being done by boosting a dead battery would be if the key was not in the off position on the dead battery vehicle when cables were connected with the boosting car running. If key was off, I don't see how any circuits that are inactive with key off could be damaged. This is based on how I troubleshoot electrical issues.

 

Is it only the air bag circuit that you are trying to correct? Does your truck have a switch for disabling the passenger side air bag? Have you tried clearing codes, and disabling passenger side air bag, and then see if both codes come back.

bigbipper Enthusiast

bigbipper

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Posted

Your charging system appears to be ok based on the voltages you are seeing. About all you can really do is verify that all connections in the air bag system are clean and tight.

 

Boosting a vehicle that has a completely dead battery can create issues with some of the electronics. Personally, I have never had any issues, or seen any issues first hand, with damage caused by either incorrect boosting procedure or by the dead battery causing a surge. To me, the only way I can imagine any damage being done by boosting a dead battery would be if the key was not in the off position on the dead battery vehicle when cables were connected with the boosting car running. If key was off, I don't see how any circuits that are inactive with key off could be damaged. This is based on how I troubleshoot electrical issues.

 

Is it only the air bag circuit that you are trying to correct? Does your truck have a switch for disabling the passenger side air bag? Have you tried clearing codes, and disabling passenger side air bag, and then see if both codes come back.

Doug, as always, thanks for your reply and concern.

At this point the only circuit that appears to be compromised is that of the air bag.

 

I have not tried what you suggested, but will try this evening.

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