this scanner is MARVELOUS!!!!.... How did I live without one!

The following codes were pulled

ON THE SBC
C225e ABS stored
C249f Service Threshold Reached current and stored

ON the BCM
9092 Axillary battery not installed current
9071 relay or signal to component fault stored
9050 consumer shut off stage II stored
9051 consumer shut off stage I stored
9055 terminal 61 signal on CAN bus missing or faulty

Based upon the codes that I am seeing is it reasonable to suspect the auxiliary battery needs replacement?

thanks in advance!!!

__________________
Currently Driving
2006 E320 CDI
1999 E300 Turbo Diesl
2002 ML500
1995 E320 Station Wagon


MBs I've owned
1997 E320 Assassinated by Pine Tree
1987 300E Wife Killed Engine
1981 300D Stretch Limo Total Loss
1970 250 Coupe 212,000 mi.
1974 450sel 184,000 mi.
1974 240D 377,000 mi.
1977 300D 204, 000 mi.
1979 280se God Only Knows!
1983 240D 130,000 mi.
1972 220D 280,000 mi.
1983 300SD 244,000 mi.