Index: MsgDefs.h
===================================================================
diff -u -r1ee5048247f129b2d08867659b644d0c62180e03 -r48237f6341b625093b55e0c80a557acd6d764e29
--- MsgDefs.h	(.../MsgDefs.h)	(revision 1ee5048247f129b2d08867659b644d0c62180e03)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 48237f6341b625093b55e0c80a557acd6d764e29)
@@ -490,7 +490,7 @@
     MSG_ID_DG_SET_SW_CONFIG_RECORD = 0xA04B,                            ///< DG set software configuration record
     MSG_ID_DG_SEND_SW_CONFIG_RECORD = 0xA04C,                           ///< DG send software configuration record
     MSG_ID_DG_FANS_DUTY_CYCLE_OVERRIDE = 0xA04D,                        ///< DG fans duty cycle override request
-    MSG_ID_MSG_AVAILABLE_42 = 0xA04E,                                   ///< Message ID available
+    MSG_ID_DG_MODE_FILL_ENABLE_CHEMS_TEST = 0xA04E,                     ///< DG mode fill enable chemicals test
     MSG_ID_DG_SET_FANS_RPM_ALARM_START_TIME_OFFSET = 0xA04F,            ///< DG set fans RPM alarm start time offset
     MSG_ID_MSG_AVAILABLE_43 = 0xA050,                                   ///< Message ID available
     MSG_ID_FILL_MODE_DATA_PUBLISH_INTERVAL_OVERRIDE = 0xA051,           ///< DG used fill publish interval override request