diff --git a/firmware/controllers/algo/engine_configuration.cpp b/firmware/controllers/algo/engine_configuration.cpp
index a6e85bcc70..2e76561def 100644
--- a/firmware/controllers/algo/engine_configuration.cpp
+++ b/firmware/controllers/algo/engine_configuration.cpp
@@ -427,10 +427,10 @@ void setDefaultConfiguration(engine_configuration_s *engineConfiguration, board_
 	boardConfiguration->ignitionPins[11] = GPIO_UNASSIGNED;
 	boardConfiguration->ignitionPinMode = OM_DEFAULT;
 
-	boardConfiguration->malfunctionIndicatorPin = GPIOC_9;
+	boardConfiguration->malfunctionIndicatorPin = GPIO_UNASSIGNED;
 	boardConfiguration->malfunctionIndicatorPinMode = OM_DEFAULT;
 
-	boardConfiguration->fanPin = GPIOC_15;
+	boardConfiguration->fanPin = GPIO_UNASSIGNED;
 	boardConfiguration->fanPinMode = OM_DEFAULT;
 
 	boardConfiguration->clutchDownPin = GPIO_UNASSIGNED;
diff --git a/firmware/controllers/settings.cpp b/firmware/controllers/settings.cpp
index 43c8de13d3..9774b5e6fd 100644
--- a/firmware/controllers/settings.cpp
+++ b/firmware/controllers/settings.cpp
@@ -694,6 +694,16 @@ static void setLogicInputPin(const char *indexStr, const char *pinName) {
 	scheduleMsg(&logger, "setting logic input pin[%d] to %s please save&restart", index, hwPortname(pin));
 	boardConfiguration->logicAnalyzerPins[index] = pin;
 }
+
+static void showPinFunction(const char *pinName) {
+	brain_pin_e pin = parseBrainPin(pinName);
+	if (pin == GPIO_INVALID) {
+		scheduleMsg(&logger, "invalid pin name [%s]", pinName);
+		return;
+	}
+	scheduleMsg(&logger, "Pin %s: [%s]", pinName, getPinFunction(pin));
+}
+
 #endif /* EFI_PROD_CODE */
 
 static void setTimingMap(const char * rpmStr, const char *loadStr, const char *valueStr) {
@@ -921,6 +931,7 @@ void initSettings(engine_configuration_s *engineConfiguration) {
 	addConsoleActionFF("set_fan", setFanSetting);
 
 #if EFI_PROD_CODE
+	addConsoleActionS("showpin", showPinFunction);
 	addConsoleActionSS("set_injection_pin", setInjectionPin);
 	addConsoleActionSS("set_ignition_pin", setIgnitionPin);
 	addConsoleActionSS("set_trigger_input_pin", setTriggerInputPin);
diff --git a/firmware/hw_layer/pin_repository.cpp b/firmware/hw_layer/pin_repository.cpp
index ae87c10c11..dc9dcfe064 100644
--- a/firmware/hw_layer/pin_repository.cpp
+++ b/firmware/hw_layer/pin_repository.cpp
@@ -156,6 +156,19 @@ iomode_t getInputMode(pin_input_mode_e mode) {
 	}
 }
 
+static int getIndex(ioportid_t port, ioportmask_t pin) {
+	int portIndex = getPortIndex(port);
+	return portIndex * 16 + pin;
+}
+
+const char * getPinFunction(brain_input_pin_e brainPin) {
+	ioportid_t port = getHwPort(brainPin);
+	ioportmask_t pin = getHwPin(brainPin);
+
+	int index = getIndex(port, pin);
+	return PIN_USED[index];
+}
+
 /**
  * This method would set an error condition if pin is already used
  */
@@ -172,8 +185,7 @@ void mySetPadMode(const char *msg, ioportid_t port, ioportmask_t pin, iomode_t m
 	appendPrintf(&logger, " on %s%d%s", portname(port), pin, DELIMETER);
 	printLine(&logger);
 
-	int portIndex = getPortIndex(port);
-	int index = portIndex * 16 + pin;
+	int index = getIndex(port, pin);
 
 	if (PIN_USED[index] != NULL) {
 		/**
@@ -193,8 +205,7 @@ void unmarkPin(brain_pin_e brainPin) {
 	ioportid_t port = getHwPort(brainPin);
 	ioportmask_t pin = getHwPin(brainPin);
 
-	int portIndex = getPortIndex(port);
-	int index = portIndex * 16 + pin;
+	int index = getIndex(port, pin);
 
 	if (PIN_USED[index] != NULL) {
 		PIN_USED[index] = NULL;
@@ -208,8 +219,7 @@ void unmarkPin(brain_pin_e brainPin) {
 void registedFundamentralIoPin(char *msg, ioportid_t port, ioportmask_t pin, iomode_t mode) {
 	efiAssertVoid(initialized, "repo not initialized");
 
-	int portIndex = getPortIndex(port);
-	int index = portIndex * 16 + pin;
+	int index = getIndex(port, pin);
 
 	if (PIN_USED[index] != NULL) {
 		print("!!!!!!!!!!!!! Already used [%s] %d\r\n", msg, pin);
diff --git a/firmware/hw_layer/pin_repository.h b/firmware/hw_layer/pin_repository.h
index 6917f78ffa..17920cfe79 100644
--- a/firmware/hw_layer/pin_repository.h
+++ b/firmware/hw_layer/pin_repository.h
@@ -30,6 +30,7 @@ void initPinRepository(void);
 const char *hwPortname(brain_pin_e brainPin);
 brain_pin_e parseBrainPin(const char *str);
 void mySetPadMode(const char *msg, ioportid_t port, ioportmask_t pin, iomode_t mode);
+const char * getPinFunction(brain_input_pin_e brainPin);
 void mySetPadMode2(const char *msg, brain_pin_e pin, iomode_t mode);
 const char *portname(GPIO_TypeDef* GPIOx);
 iomode_t getInputMode(pin_input_mode_e mode);