Index: leahi_dialin/common/fp_defs.py
===================================================================
diff -u -r144020fa422bc5d0db1bd62647c29022a887206e -r11e7bd014a4b44e94c055a15881b1e01b35f5749
--- leahi_dialin/common/fp_defs.py	(.../fp_defs.py)	(revision 144020fa422bc5d0db1bd62647c29022a887206e)
+++ leahi_dialin/common/fp_defs.py	(.../fp_defs.py)	(revision 11e7bd014a4b44e94c055a15881b1e01b35f5749)
@@ -146,7 +146,7 @@
     P34_VALV                            = 3     # Valve (P34 VCb)
     P37_VALV                            = 4     # Valve (P37 VCd)
     P39_VALV                            = 5     # Valve (P39 VROd)
-    P43_VALV                            = 6     # Valve (P43)
+    M12_VALV                            = 6     # Valve (M12)
     P6_VALV                             = 7     # Valve (P6 VFF)
     NUM_OF_FP_VALVES                    = 8     # Number of valves
 
Index: leahi_dialin/fp/modules/valves.py
===================================================================
diff -u -r00412d78bda4176d5c45a3778cb90ad907928965 -r11e7bd014a4b44e94c055a15881b1e01b35f5749
--- leahi_dialin/fp/modules/valves.py	(.../valves.py)	(revision 00412d78bda4176d5c45a3778cb90ad907928965)
+++ leahi_dialin/fp/modules/valves.py	(.../valves.py)	(revision 11e7bd014a4b44e94c055a15881b1e01b35f5749)
@@ -66,7 +66,7 @@
         self.p34_valv = {"id": FPValveNames.P34_VALV.value, "state": DEENERGIZED}
         self.p37_valv = {"id": FPValveNames.P37_VALV.value, "state": DEENERGIZED}
         self.p39_valv = {"id": FPValveNames.P39_VALV.value, "state": DEENERGIZED}
-        self.p43_valv = {"id": FPValveNames.P43_VALV.value, "state": DEENERGIZED}
+        self.m12_valv = {"id": FPValveNames.M12_VALV.value, "state": DEENERGIZED}
         self.p6_valv = {"id": FPValveNames.P6_VALV.value, "state": DEENERGIZED}
 
         # NOTE: The len function counts the enums with the same number only once.
@@ -88,7 +88,7 @@
             self.p34_valv.get("state"),
             self.p37_valv.get("state"),
             self.p39_valv.get("state"),
-            self.p43_valv.get("state"),
+            self.m12_valv.get("state"),
             self.p6_valv.get("state")
         ]
 
@@ -131,7 +131,7 @@
         "p34_valv",
         "p37_valv",
         "p39_valv",
-        "p43_valv",
+        "m12_valv",
         "p6_valv",
         "valve_states_enum",
         "fp_valves_states_timestamp"
@@ -153,7 +153,7 @@
         self.p34_valv["state"] = self._binary_to_valve_state(vst[0] & 8)
         self.p37_valv["state"] = self._binary_to_valve_state(vst[0] & 16)
         self.p39_valv["state"] = self._binary_to_valve_state(vst[0] & 32)
-        self.p43_valv["state"] = self._binary_to_valve_state(vst[0] & 64)
+        self.m12_valv["state"] = self._binary_to_valve_state(vst[0] & 64)
         self.p6_valv["state"] = self._binary_to_valve_state(vst[0] & 128)
 
         start = self.END_POS_VALVES_STATES
Index: leahi_dialin/ui/fp_messaging.py
===================================================================
diff -u -re8a6ae1277d26e72f7e9f7b39d15bac75a860d01 -r11e7bd014a4b44e94c055a15881b1e01b35f5749
--- leahi_dialin/ui/fp_messaging.py	(.../fp_messaging.py)	(revision e8a6ae1277d26e72f7e9f7b39d15bac75a860d01)
+++ leahi_dialin/ui/fp_messaging.py	(.../fp_messaging.py)	(revision 11e7bd014a4b44e94c055a15881b1e01b35f5749)
@@ -108,16 +108,16 @@
         self.can_interface.send(message, 0)
 
     def fp_valves(self, M4_VALV         : bool,
-                        P39_VALV        : bool,
-                        P6_VALV         : bool,
-                        P11_VALV        : bool,
-                        P33_VALV        : bool,
-                        P34_VALV        : bool,
-                        P37_VALV        : bool,
-                        M7_VALV         : bool,
-                        P20_VALV        : bool,
-                        P43_VALV        : bool,
-                        valvesensedState: list):
+                  P39_VALV        : bool,
+                  P6_VALV         : bool,
+                  P11_VALV        : bool,
+                  P33_VALV        : bool,
+                  P34_VALV        : bool,
+                  P37_VALV        : bool,
+                  M7_VALV         : bool,
+                  P20_VALV        : bool,
+                  M12_VALV        : bool,
+                  valvesensedState: list):
         """
         Broadcasts the current FP Valve data (Msg ID: 0x31, 49)
         Args:
@@ -130,27 +130,27 @@
             P37_VALV                  (bool       ): Valves (P37)
             M7_VALV                   (bool       ): Valves (M7)
             P20_VALV                  (bool       ): Valves (P20)
-            P43_VALV                  (bool       ): Valves (P43)
+            M12_VALV                  (bool       ): Valves (P43)
             valvesensedState[10]      (list[int]  ): Sense state of valves
         @return: None
         """
         # final 6 bits are unused and left as 0
-        hydraulic_valves =  (M4_VALV        << 0 )|\
-                            (P39_VALV       << 1 )|\
-                            (P6_VALV        << 2 )|\
-                            (P11_VALV       << 3 )|\
-                            (P33_VALV       << 4 )|\
-                            (P34_VALV       << 5 )|\
-                            (P37_VALV       << 6 )|\
-                            (M7_VALV        << 7 )|\
-                            (P20_VALV       << 8 )|\
-                            (P43_VALV       << 9 )|\
-                            (0              << 10)|\
-                            (0              << 11)|\
-                            (0              << 12)|\
-                            (0              << 13)|\
-                            (0              << 14)|\
-                            (0              << 15)
+        hydraulic_valves = (M4_VALV        << 0 ) | \
+                           (P39_VALV       << 1 ) | \
+                           (P6_VALV        << 2 ) | \
+                           (P11_VALV       << 3 ) | \
+                           (P33_VALV       << 4 ) | \
+                           (P34_VALV       << 5 ) | \
+                           (P37_VALV       << 6 ) | \
+                           (M7_VALV        << 7 ) | \
+                           (P20_VALV       << 8 ) | \
+                           (M12_VALV << 9) | \
+                           (0              << 10) | \
+                           (0              << 11) | \
+                           (0              << 12) | \
+                           (0              << 13) | \
+                           (0              << 14) | \
+                           (0              << 15)
         
         payload  =  conversions.unsigned_short_to_bytearray(hydraulic_valves                )
         for i in range(len(valvesensedState)):