Auxiliary Battery Malfunction A Comprehensive Guide to Causes and Solutions

Loss of non-essential features: The auxiliary battery typically powers non-essential features such as the radio, interior lights, and power windows. If the ... This can indicate a fault with the wiring leading to the battery, a fault with one of the SAM body computers, or a fault with the battery control module ... if you drive for a long enough time before the error appears, it may indicate a fault in your charging path. If it's able to recharge when you ... My 2016 GLC has just started with the auxiliary battery malfunction error message. I intend to check the fuse 448 first. This morning, I got the "Auxiliary Battery Malfunction" warning message. It was a cold morning (maybe around 30 degrees F). Everything ... Take it to the dealer now. The Auxiliary battery controls many of the functions on the car. The main battery is for starting only. Remove the old auxiliary battery and install the new battery by fastening the brackets in place and connecting the positive terminal, followed by the negative ... I am working on a 2020 A220. It has a Auxiliary Battery Malfunction message. I cannot find the location of the battery. There's only a single aux batt. Could be bad -- so long as the truck isn't driving, you could disconnect the aux batt overnight to see if the issue persists. Very easy. I removed the seat (Four 10m bolts), found and removed the small 12v aux battery electronic cabinet underneath the seat (a little ...