disable liquid presence detection

api/src/opentrons/hardware_control/backends/flex_protocol.py

@@ -65,6 +65,9 @@ def set_pressure_sensor_available(
     ) -> None:
         ...
 
+    def get_pressure_sensor_available(self, pipette_axis: Axis) -> bool:
+        ...
+
     def update_constraints_for_gantry_load(self, gantry_load: GantryLoad) -> None:
         ...
 

api/src/opentrons/hardware_control/backends/ot3controller.py

@@ -387,6 +387,10 @@ def set_pressure_sensor_available(
         pip_node = axis_to_node(pipette_axis)
         self._pressure_sensor_available[pip_node] = available
 
+    def get_pressure_sensor_available(self, pipette_axis: Axis) -> bool:
+        pip_node = axis_to_node(pipette_axis)
+        return self._pressure_sensor_available[pip_node]
+
     def update_constraints_for_calibration_with_gantry_load(
         self,
         gantry_load: GantryLoad,

api/src/opentrons/hardware_control/ot3api.py

@@ -641,6 +641,10 @@ async def cache_pipette(
         # when applicable
         return skipped
 
+    def get_pressure_sensor_available(self, mount: OT3Mount) -> bool:
+        pip_axis = Axis.of_main_tool_actuator(mount)
+        return self._backend.get_pressure_sensor_available(pip_axis)
+
     def _set_pressure_sensor_available(
         self,
         mount: OT3Mount,

api/src/opentrons/protocol_api/core/engine/instrument.py

@@ -860,6 +860,11 @@ def retract(self) -> None:
         self._engine_client.execute_command(cmd.HomeParams(axes=[z_axis]))
 
     def detect_liquid_presence(self, well_core: WellCore, loc: Location) -> bool:
+        if not self._sync_hardware_api.pressure_sensor_available(
+            mount=self.get_mount()
+        ):
+            raise ValueError("Liquid Presence Detection not available.")
+
         labware_id = well_core.labware_id
         well_name = well_core.get_name()
         well_location = WellLocation(