Code 46 168/1 ECM Battery Voltage Low, 214/1 RTC Backup Battery Voltage Low (Release 29.0 Or Later), 232/1 Sensor Supply Voltage Low
All DDEC codes are available from the link I posted earlier. If you call up that link and click the 'show' button it will allow a search for specific information for DDEC II and DDEC III (plus lots of unrelated items).