Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r26f63d0260a3c35277e3e6dbca3573c253775318 -r622eebf6fb7f1c6c232ffd82bc072dd30a7b3f94
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 26f63d0260a3c35277e3e6dbca3573c253775318)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 622eebf6fb7f1c6c232ffd82bc072dd30a7b3f94)
@@ -950,7 +950,9 @@
                 U16 msgID;
 
                 memcpy( &msgID, &pendingAckList[ i ].msg[ sizeof( U08 ) + sizeof( U16) ], sizeof( U16 ) );
-                //SET_ALARM_WITH_1_U32_DATA( ALARM_ID_CAN_MESSAGE_NOT_ACKED, (U32)msgID ); TODO uncomment this unit 2 raises this alarm no HD
+#ifndef DISABLE_ACK_ALARM
+                SET_ALARM_WITH_1_U32_DATA( ALARM_ID_CAN_MESSAGE_NOT_ACKED, (U32)msgID );
+#endif
                 pendingAckList[ i ].used = FALSE;  // take pending message off of list
             }
         }