Index: leahi_dialin/td/modules/air_trap.py
===================================================================
diff -u -r0b843faddee1416bfddb6f2589aedecf950c6df8 -re5c5e1a8c10903e8caa793694b8f309125b2f6d8
--- leahi_dialin/td/modules/air_trap.py	(.../air_trap.py)	(revision 0b843faddee1416bfddb6f2589aedecf950c6df8)
+++ leahi_dialin/td/modules/air_trap.py	(.../air_trap.py)	(revision e5c5e1a8c10903e8caa793694b8f309125b2f6d8)
@@ -249,3 +249,28 @@
         else:
             self.logger.debug("timeout!!")
             return False
+
+    def cmd_set_td_air_trap_control(self, control: int = 0) -> int:
+        """
+        Constructs and sends a set control command to the TD air trap.
+
+        @param valve: start/stop for air trap control
+        @returns 1 if successful, zero otherwise
+        """
+
+        ctl = integer_to_bytearray(control)
+        payload = ctl
+
+        message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_td_ch_id,
+                                              message_id=MsgIds.MSG_ID_TD_SET_AIR_TRAP_CONTROL.value,
+                                              payload=payload)
+        # Send message
+        received_message = self.can_interface.send(message)
+
+        # If there is content...
+        if received_message is not None:
+            # response payload is OK or not OK
+            return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX]
+        else:
+            self.logger.debug("timeout!!")
+            return False
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