diff --git a/firmware/controllers/simple_tcu.cpp b/firmware/controllers/simple_tcu.cpp
index f241fafeaf..86650df0b9 100644
--- a/firmware/controllers/simple_tcu.cpp
+++ b/firmware/controllers/simple_tcu.cpp
@@ -2,20 +2,18 @@
 #include "efi_gpio.h"
 #include "engine_configuration.h"
 
-EXTERN_CONFIG;
-
-OutputPin tcuSolenoids[TCU_SOLENOID_COUNT];
+EXTERN_ENGINE;
 
 void SimpleTransmissionController::init() {
     for (size_t i = 0; i < efi::size(CONFIG(tcu_solenoid)); i++) {
-        tcuSolenoids[i].initPin("Transmission Solenoid", CONFIG(tcu_solenoid)[i], &CONFIG(tcu_solenoid_mode)[i]);
+        enginePins.tcuSolenoids[i].initPin("Transmission Solenoid", CONFIG(tcu_solenoid)[i], &CONFIG(tcu_solenoid_mode)[i]);
     }
 }
 
 void SimpleTransmissionController::update(gear_e gear) {
     for (size_t i = 0; i < efi::size(CONFIG(tcu_solenoid)); i++) {
 #if ! EFI_UNIT_TEST
-        tcuSolenoids[i].setValue(config->tcuSolenoidTable[i][static_cast<int>(gear) + 1]);
+    	enginePins.tcuSolenoids[i].setValue(config->tcuSolenoidTable[i][static_cast<int>(gear) + 1]);
 #endif
     }
     setCurrentGear(gear);
diff --git a/firmware/controllers/system/efi_gpio.h b/firmware/controllers/system/efi_gpio.h
index 6288bd8f6f..181186e707 100644
--- a/firmware/controllers/system/efi_gpio.h
+++ b/firmware/controllers/system/efi_gpio.h
@@ -207,6 +207,8 @@ public:
 	InjectorOutputPin injectors[INJECTION_PIN_COUNT];
 	IgnitionOutputPin coils[IGNITION_PIN_COUNT];
 	NamedOutputPin auxValve[AUX_DIGITAL_VALVE_COUNT];
+	OutputPin tcuSolenoids[TCU_SOLENOID_COUNT];
+
 private:
 	void startInjectionPins();
 	void startIgnitionPins();