Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r37dac720d0a04a6f28ae8f60bf1320ca13989354 -r0f03e01bcd314a925e302ecc826a5d72d517d00d
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 37dac720d0a04a6f28ae8f60bf1320ca13989354)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 0f03e01bcd314a925e302ecc826a5d72d517d00d)
@@ -8,7 +8,7 @@
 * @file    SystemCommMessages.h
 *
 * @author  (last)      Dara Navaei
-* @date    (last)      28-Apr-2024
+* @date    (last)      13-Sep-2024
 *
 * @author  (original)  Dara Navaei
 * @date    (original)  05-Nov-2019
@@ -467,7 +467,7 @@
 BOOL sendDGParkConcentratePumpsCommand( void );
 
 // MSG_ID_DG_START_STOP_HEAT_DISINFECT
-BOOL sendDGStartHeatDisinfectModeCommand( BOOL start );
+BOOL sendDGStartHeatDisinfectActiveCoolModeCommand( BOOL start );
 
 // MSG_ID_DG_START_STOP_CHEM_DISINFECT
 BOOL sendDGStartChemicalDisinfectModeCommand( BOOL start );
@@ -547,7 +547,7 @@
 void handleSendChemFlushPassFailToDG( U32 status );
 
 // MSG_ID_DG_START_STOP_HEAT_DISINFECT_ACTIVE_COOL
-BOOL sendDGStopActiveCoolModeCommand( void );
+BOOL sendDGStopActiveCoolModeCommand( BOOL start );
 
 // MSG_ID_DG_START_STOP_RO_PERMEATE_SAMPLE_MODE_CMD_REQUEST
 BOOL sendDGStartStopDGROPermeateSampleModeCommand( BOOL start );
@@ -564,6 +564,9 @@
 // MSG_ID_UI_HD_RESET_IN_SERVICE_MODE_REQUEST
 void handleUIHDResetInServiceModeRequest( MESSAGE_T* message );
 
+// MSG_ID_DG_START_STOP_PASSIVE_COOL_HEAT_DISINFECT
+BOOL sendDGStartHeatDisinfectPassiveCoolModeCommand( BOOL start );
+
 // *********** public test support message functions **********
 
 // MSG_TESTER_LOG_IN