diff --git a/config/hook_implementations.py b/config/hook_implementations.py
index c0fb98f..b0b561d 100644
--- a/config/hook_implementations.py
+++ b/config/hook_implementations.py
@@ -54,6 +54,7 @@ class EiveHookObject(TmTcHookBase):
             "0": ("PDU1 Tests", {OpCodeDictKeys.TIMEOUT: 2.0}),
             "1": ("PDU1: Turn star tracker on", {OpCodeDictKeys.TIMEOUT: 2.0}),
             "2": ("PDU1: Get switch state of star tracker", {OpCodeDictKeys.TIMEOUT: 2.0}),
+            "3": ("PDU1: Turn SUS nominal on", {OpCodeDictKeys.TIMEOUT: 2.0}),
         }
         service_pdu1_tuple = ("PDU1 Device", op_code_dict_srv_pdu1)
 
diff --git a/pus_tc/pdu1.py b/pus_tc/pdu1.py
index 2b790ff..762909a 100644
--- a/pus_tc/pdu1.py
+++ b/pus_tc/pdu1.py
@@ -39,9 +39,12 @@ def pack_pdu1_test_into(object_id: bytearray, tc_queue: TcQueueT, op_code: str)
                                          PDUConfigTable.out_en_2.parameter_size, Channel.on)
         command = PusTelecommand(service=8, subservice=128, ssc=30, app_data=command)
         tc_queue.appendleft(command.pack_command_tuple())
-    if op_code == "1":
-        
-
+    if op_code == "3":
+        tc_queue.appendleft((QueueCommands.PRINT, "PDU1: Turn SUS nominal on"))
+        command = pack_set_param_command(object_id, PDUConfigTable.out_en_4.parameter_address,
+                                         PDUConfigTable.out_en_4.parameter_size, Channel.on)
+        command = PusTelecommand(service=8, subservice=128, ssc=31, app_data=command)
+        tc_queue.appendleft(command.pack_command_tuple())
 
     if PDU1TestProcedure.all or PDU1TestProcedure.ping:
         tc_queue.appendleft((QueueCommands.PRINT, "PDU1: Ping Test"))