diff --git a/firmware/controllers/algo/engine.cpp b/firmware/controllers/algo/engine.cpp
index 3a34efd55f..37fbce3e87 100644
--- a/firmware/controllers/algo/engine.cpp
+++ b/firmware/controllers/algo/engine.cpp
@@ -178,7 +178,7 @@ void Engine::periodicSlowCallback() {
 #endif // EFI_PROD_CODE
 
 #if ANALOG_HW_CHECK_MODE
-	efiAssertVoid(OBD_PCM_Processor_Fault, isAdcChannelValid(engineConfiguration->clt.adcChannel), "No CLT setting");
+	efiAssertVoid(ObdCode::OBD_PCM_Processor_Fault, isAdcChannelValid(engineConfiguration->clt.adcChannel), "No CLT setting");
 	efitimesec_t secondsNow = getTimeNowS();
 
 #if ! HW_CHECK_ALWAYS_STIMULATE
diff --git a/misc/stm32f1_test_project/timer/event_queue.cpp b/misc/stm32f1_test_project/timer/event_queue.cpp
index 8afa49c570..266399ecf8 100644
--- a/misc/stm32f1_test_project/timer/event_queue.cpp
+++ b/misc/stm32f1_test_project/timer/event_queue.cpp
@@ -108,7 +108,7 @@ void EventQueue::remove(scheduling_s* scheduling) {
 			return;
 		}
 
-		efiAssertVoid(OBD_PCM_Processor_Fault, current == scheduling, "current not equal to scheduling");
+		efiAssertVoid(ObdCode::OBD_PCM_Processor_Fault, current == scheduling, "current not equal to scheduling");
 
 		// Link around the removed item
 		prev->nextScheduling_s = current->nextScheduling_s;
diff --git a/misc/stm32f1_test_project/timer/microsecond_timer.cpp b/misc/stm32f1_test_project/timer/microsecond_timer.cpp
index d8e71273fd..b28494311a 100644
--- a/misc/stm32f1_test_project/timer/microsecond_timer.cpp
+++ b/misc/stm32f1_test_project/timer/microsecond_timer.cpp
@@ -50,7 +50,7 @@ static bool hwStarted = false;
  * This function should be invoked under kernel lock which would disable interrupts.
  */
 void setHardwareSchedulerTimer(efitick_t nowNt, efitick_t setTimeNt) {
-	efiAssertVoid(OBD_PCM_Processor_Fault, hwStarted, "HW.started");
+	efiAssertVoid(ObdCode::OBD_PCM_Processor_Fault, hwStarted, "HW.started");
 
 	// How many ticks in the future is this event?
 	auto timeDeltaNt = setTimeNt - nowNt;