diff --git a/firmware/hw_layer/pin_repository.cpp b/firmware/hw_layer/pin_repository.cpp
index 365660c70c..3b15f93741 100644
--- a/firmware/hw_layer/pin_repository.cpp
+++ b/firmware/hw_layer/pin_repository.cpp
@@ -36,8 +36,7 @@ bool isBrainPinValid(brain_pin_e brainPin)
 	return true;
 }
 
-static int brainPin_to_index(brain_pin_e brainPin)
-{
+int brainPin_to_index(brain_pin_e brainPin) {
 	unsigned int i;
 
 	if (brainPin < GPIOA_0)
diff --git a/firmware/hw_layer/pin_repository.h b/firmware/hw_layer/pin_repository.h
index 5af272cb41..68ef531122 100644
--- a/firmware/hw_layer/pin_repository.h
+++ b/firmware/hw_layer/pin_repository.h
@@ -54,6 +54,7 @@ EXTERNC void gpio_pin_markUnused(ioportid_t port, ioportmask_t pin);
 int getPortPinIndex(ioportid_t port, ioportmask_t pin);
 ioportid_t getBrainPinPort(brain_pin_e brainPin);
 int getBrainPinIndex(brain_pin_e brainPin);
+int brainPin_to_index(brain_pin_e brainPin);
 unsigned int getBrainPinOnchipNum(void);
 unsigned int getBrainPinTotalNum(void);
 
diff --git a/unit_tests/engine_test_helper.cpp b/unit_tests/engine_test_helper.cpp
index ce4d518efc..8091d46692 100644
--- a/unit_tests/engine_test_helper.cpp
+++ b/unit_tests/engine_test_helper.cpp
@@ -17,6 +17,7 @@
 #include "sensor.h"
 #include "tooth_logger.h"
 #include "logicdata.h"
+#include "hardware.h"
 
 #if EFI_ENGINE_SNIFFER
 #include "engine_sniffer.h"
@@ -111,6 +112,8 @@ EngineTestHelper::EngineTestHelper(engine_type_e engineType, configuration_callb
 	engine->mockAirmassModel = &mockAirmass;
 
 	memset(mockPinStates, 0, sizeof(mockPinStates));
+
+	initHardware(PASS_ENGINE_PARAMETER_SIGNATURE);
 }
 
 EngineTestHelper::~EngineTestHelper() {