245043 — OBC LAN watchdog error blanks the Gantry display during an AutoMA scan
GE Healthcare CT error code, reported by the GE LightSpeed CT platform.
What 245043 means
On LightSpeed QX/i and LightSpeed Plus and LightSpeed Ultra and LightSpeed 16 and HiSpeed QXi CT systems, status code 245043 indicates: OBC LAN watchdog error blanks the Gantry display during an AutoMA scan. The code originates in the Table/Gantry — OBC Firmware section of the GE LightSpeed CT platform. Severity level error (Error condition).
Reported action: This is a known LS2002 M4 firmware defect, not a hardware failure — do not start swapping Gantry or OBC parts. A simple hardware reset from the Utilities screen clears it, and avoiding AutoMA in the protocol is the documented workaround until the M5 (or 4.x Linux/GRE M3) firmware fix. Details are in the service manual..
Raised on GE LightSpeed QX/i, Plus, Ultra, LightSpeed 16 and HiSpeed QXi systems running LS2002 M4 Table/Gantry firmware: on the last image of a series with AutoMA turned on, the OBC gets an AutoMA table-size command it can't handle correctly, resets, and logs a LAN watchdog error (STC Master Exc Handler, exm_lan_wdog.c) that blanks the Gantry display and stops scanning.
Full troubleshooting for 245043
The complete diagnosis, cause tree, and step-by-step remedy for the Table/Gantry — OBC Firmware subsystem are documented in the FSELIB GE Healthcare service manual — re-authored, web-first, with real figures.
7-day free trial · no credit card required
Related Table/Gantry — OBC Firmware codes
Source: GE Offline Knowledge (kOffline). Reference information re-authored by FSELIB — not a copy of the OEM manual.