https://wiki.ross-tech.com/wiki/index.php?action=history&feed=atom&title=B1916%2F039190 2026-05-12T17:48:11Z Revision history for this page on the wiki MediaWiki 1.43.3 https://wiki.ross-tech.com/wiki/index.php?title=B1916/039190&diff=9818&oldid=prev 2025-12-05T20:10:34Z

<p>Created page with &quot;__FORCETOC__ === B1916/039190 - Backup Battery === === B1916 04 - Backup Battery - Internal System Fault === ==== Possible Causes ==== * Incorrect Gateway backup-battery monitoring parameter ==== Possible Solutions ==== * Manually discharge Gateway backup-battery to reset system ==== Special Notes ==== * When found in the 2018 Audi A4, A5, Q5 and/or Q7, follow this Technical Service Bulletin: * [https://static.nhtsa.gov/odi/tsbs/2019/MC-10157248-9999.pdf 91 SOS war...&quot;</p> <p><b>New page</b></p><div>__FORCETOC__<br /> === B1916/039190 - Backup Battery ===<br /> <br /> === B1916 04 - Backup Battery - Internal System Fault ===<br /> <br /> ==== Possible Causes ====<br /> <br /> * Incorrect Gateway backup-battery monitoring parameter<br /> <br /> ==== Possible Solutions ====<br /> <br /> * Manually discharge Gateway backup-battery to reset system<br /> ==== Special Notes ====<br /> <br /> * When found in the 2018 Audi A4, A5, Q5 and/or Q7, follow this Technical Service Bulletin:<br /> * [https://static.nhtsa.gov/odi/tsbs/2019/MC-10157248-9999.pdf 91 SOS warning displayed in instrument cluster, DTC B191604 stored in the gateway control module 2051664]<br /> <br /> <br /> [[Category:Fault Codes]]</div>

Peter