diff --git a/api/tests/opentrons/protocol_engine/commands/absorbance_reader/test_initialize.py b/api/tests/opentrons/protocol_engine/commands/absorbance_reader/test_initialize.py
index 393e41c259c..5f965f4ab48 100644
--- a/api/tests/opentrons/protocol_engine/commands/absorbance_reader/test_initialize.py
+++ b/api/tests/opentrons/protocol_engine/commands/absorbance_reader/test_initialize.py
@@ -38,7 +38,7 @@ async def test_absorbance_reader_implementation(
 
     params = InitializeParams(
         moduleId="unverified-module-id",
-        measureMode=input_measure_mode,
+        measureMode=input_measure_mode,  # type: ignore[arg-type]
         sampleWavelengths=input_sample_wave_length,
     )
 
@@ -75,7 +75,7 @@ async def test_absorbance_reader_implementation(
                 module_id="unverified-module-id",
                 module_type="absorbanceReaderType",
                 initialize_absorbance_reader_update=update_types.AbsorbanceReaderInitializeUpdate(
-                    measure_mode=input_measure_mode,
+                    measure_mode=input_measure_mode,  # type: ignore[arg-type]
                     sample_wave_lengths=input_sample_wave_length,
                     reference_wave_length=None,
                 ),
diff --git a/api/tests/opentrons/protocol_engine/commands/absorbance_reader/test_read.py b/api/tests/opentrons/protocol_engine/commands/absorbance_reader/test_read.py
new file mode 100644
index 00000000000..c8d68368e38
--- /dev/null
+++ b/api/tests/opentrons/protocol_engine/commands/absorbance_reader/test_read.py
@@ -0,0 +1,71 @@
+"""Test absorbance reader initilize command."""
+import pytest
+from decoy import Decoy
+from typing import List
+
+from opentrons.drivers.types import ABSMeasurementMode
+from opentrons.hardware_control.modules import AbsorbanceReader
+
+from opentrons.protocol_engine.execution import EquipmentHandler
+from opentrons.protocol_engine.resources import FileProvider
+from opentrons.protocol_engine.state import update_types
+from opentrons.protocol_engine.state.state import StateView
+from opentrons.protocol_engine.state.module_substates import (
+    AbsorbanceReaderSubState,
+    AbsorbanceReaderId,
+)
+from opentrons.protocol_engine.commands.command import SuccessData
+from opentrons.protocol_engine.commands.absorbance_reader import (
+    ReadAbsorbanceResult,
+    ReadAbsorbanceParams,
+)
+from opentrons.protocol_engine.commands.absorbance_reader.read import (
+    ReadAbsorbanceImpl,
+)
+
+
+async def test_absorbance_reader_implementation(
+    decoy: Decoy,
+    state_view: StateView,
+    equipment: EquipmentHandler,
+    file_provider: FileProvider,
+) -> None:
+    """It should validate, find hardware module if not virtualized, and disengage."""
+    subject = ReadAbsorbanceImpl(
+        state_view=state_view, equipment=equipment, file_provider=file_provider
+    )
+
+    params = ReadAbsorbanceParams(
+        moduleId="unverified-module-id",
+    )
+
+    mabsorbance_module_substate = decoy.mock(cls=AbsorbanceReaderSubState)
+    absorbance_module_hw = decoy.mock(cls=AbsorbanceReader)
+    verified_module_id = AbsorbanceReaderId("module-id")
+
+    decoy.when(
+        state_view.modules.get_absorbance_reader_substate("unverified-module-id")
+    ).then_return(mabsorbance_module_substate)
+
+    decoy.when(mabsorbance_module_substate.module_id).then_return(verified_module_id)
+
+    decoy.when(equipment.get_module_hardware_api(verified_module_id)).then_return(
+        absorbance_module_hw
+    )
+
+    result = await subject.execute(params=params)
+
+    decoy.verify(
+        await absorbance_module_hw.start_measure(),
+        times=1,
+    )
+    assert result == SuccessData(
+        public=ReadAbsorbanceResult(),
+        state_update=update_types.StateUpdate(
+            module_state_update=update_types.ModuleStateUpdate(
+                module_id="unverified-module-id",
+                module_type="absorbanceReaderType",
+                absorbance_reader_data=update_types.AbsorbanceReaderDataUpdate(),
+            )
+        ),
+    )
diff --git a/api/tests/opentrons/protocol_engine/commands/conftest.py b/api/tests/opentrons/protocol_engine/commands/conftest.py
index 1d27dea0536..cf2d36b092e 100644
--- a/api/tests/opentrons/protocol_engine/commands/conftest.py
+++ b/api/tests/opentrons/protocol_engine/commands/conftest.py
@@ -15,6 +15,7 @@
     TipHandler,
     GantryMover,
 )
+from opentrons.protocol_engine.resources import FileProvider
 from opentrons.protocol_engine.resources.model_utils import ModelUtils
 from opentrons.protocol_engine.state.state import StateView
 
@@ -83,3 +84,9 @@ def status_bar(decoy: Decoy) -> StatusBarHandler:
 def gantry_mover(decoy: Decoy) -> GantryMover:
     """Get a mocked out GantryMover."""
     return decoy.mock(cls=GantryMover)
+
+
+@pytest.fixture
+def file_provider(decoy: Decoy) -> FileProvider:
+    """Get a mocked out StateView."""
+    return decoy.mock(cls=FileProvider)