DTC Description

C2804-00 is set when CAN Communication is normal, but DATC ("A/C CONTROL MODULE") cannot transmit P_CAN message to "GATEWAY" for 10 sec.

If the DTC still appears even if the problem is corrected and the system operates normally, perform "Erase Network Configuration" procedure in the "Vehicle S/W Management"  with GDS and erase the DTC.