Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r9055124b17389e04131b44c00915c33c72db3ae6 -rbaadbfda2c0b0a51ee830ec5de414604f9a3971e
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 9055124b17389e04131b44c00915c33c72db3ae6)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision baadbfda2c0b0a51ee830ec5de414604f9a3971e)
@@ -476,25 +476,22 @@
  * @details Outputs: Heparin command response msg constructed and queued.
  * @param accepted flag indicating whether request was accepted
  * @param rejReason rejection reason code
- * @param heparinDeliveryState current Heparin delivery state
  * @return TRUE if msg successfully queued for transmit, FALSE if not
  *************************************************************************/
-BOOL sendHeparinCommandResponse( U32 accepted, U32 rejReason, U32 heparinDeliveryState )
+BOOL sendHeparinCommandResponse( U32 accepted, U32 rejReason )
 {
     BOOL result;
     MESSAGE_T msg;
     U08 *payloadPtr = msg.payload;
 
     // Create a message record
     blankMessage( &msg );
-    msg.hdr.msgID = MSG_ID_HD_PRESSURE_LIMITS_CHANGE_RESPONSE;
-    msg.hdr.payloadLen = sizeof( U32 ) * 3;
+    msg.hdr.msgID = MSG_ID_HD_HEPARIN_PAUSE_RESUME_RESPONSE;
+    msg.hdr.payloadLen = sizeof( U32 ) * 2;
 
     memcpy( payloadPtr, &accepted, sizeof( U32 ) );
     payloadPtr += sizeof( U32 );
     memcpy( payloadPtr, &rejReason, sizeof( U32 ) );
-    payloadPtr += sizeof( U32 );
-    memcpy( payloadPtr, &heparinDeliveryState, sizeof( U32 ) );
 
     // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
     result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_UI, ACK_REQUIRED );