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post #1 of 4 (permalink) Old 03-18-2018, 02:09 PM Thread Starter
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Airbag fault

Occasionally I receive an Airbag fault on startup. The light always goes out a few seconds later. I used my code reader to check for stored codes and it is listed as B0081 Incorrect RF SIS Installed. Has anyone else had this issue or suggestions to resolve it?
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post #2 of 4 (permalink) Old 03-18-2018, 04:57 PM
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Well, B0081 is referring to the passenger seat presence sensor circuit. The bad, is that there are 7 different B0081 faults that it could be. I suppose the real deal GM type scan computer would tell you which one of those 7 is being sensed. I can only guess, but in the past it always seems to be the under seat module going bad. That might point to a fault like B0081-3A B0081-42 or B0081-5A
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post #3 of 4 (permalink) Old 03-25-2018, 08:23 AM Thread Starter
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Quote:
Originally Posted by GOPHERIT View Post
Well, B0081 is referring to the passenger seat presence sensor circuit. The bad, is that there are 7 different B0081 faults that it could be. I suppose the real deal GM type scan computer would tell you which one of those 7 is being sensed. I can only guess, but in the past it always seems to be the under seat module going bad. That might point to a fault like B0081-3A B0081-42 or B0081-5A
Small update. I now have access to a Tech2 scanner, and the specific codes are B0081 71 in the SDM and B0081 5a in the PPS. I am still trying to determine what these codes mean and how to diagnose them. I'd like to be 100% certain that I need to replace the module before I drop $400 on it.
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post #4 of 4 (permalink) Old 03-25-2018, 10:16 AM
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It says in the service manual, that -5A is a plausibility failure within the seat module. An -71 says invalid serial data received from it. It reads as thou the seat module is having a hard time getting its act together. An if I'm reading GM parts sources correctly, that module appears to be # 92225594. If that is correct, it can be had for $324 an up, plus the usual add on for shipping etc. If you have to go that route

Last edited by GOPHERIT; 03-25-2018 at 10:33 AM. Reason: added info
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