diff --git a/firmware/controllers/bench_test.cpp b/firmware/controllers/bench_test.cpp
index b52811662b..3839b8776c 100644
--- a/firmware/controllers/bench_test.cpp
+++ b/firmware/controllers/bench_test.cpp
@@ -465,6 +465,7 @@ void initBenchTest(Logging *sharedLogger) {
 	addConsoleAction("acrelaybench", acRelayBench);
 	addConsoleActionS("fuelpumpbench2", fuelPumpBenchExt);
 	addConsoleAction("fanbench", fanBench);
+	addConsoleAction("mainrelaybench", mainRelayBench);
 	addConsoleActionS("fanbench2", fanBenchExt);
 	addConsoleAction("update_wideband", []() { widebandUpdatePending = true; });
 
diff --git a/firmware/controllers/core/fsio_core.h b/firmware/controllers/core/fsio_core.h
index b220517aaa..5c988bbf2d 100644
--- a/firmware/controllers/core/fsio_core.h
+++ b/firmware/controllers/core/fsio_core.h
@@ -57,6 +57,7 @@ typedef enum {
 	LE_METHOD_FSIO_SETTING = 124,
 	LE_METHOD_PPS = 125,
 	LE_METHOD_TIME_SINCE_TRIGGER_EVENT = 127,
+	LE_METHOD_IN_MR_BENCH = 128,
 
 #include "fsio_enums_generated.def"
 
diff --git a/firmware/controllers/core/fsio_impl.cpp b/firmware/controllers/core/fsio_impl.cpp
index f671b05498..51cd2da4bd 100644
--- a/firmware/controllers/core/fsio_impl.cpp
+++ b/firmware/controllers/core/fsio_impl.cpp
@@ -71,6 +71,7 @@ static LENameOrdinalPair leExhaustVVT(LE_METHOD_EXHAUST_VVT, "evvt");
 static LENameOrdinalPair leCrankingRpm(LE_METHOD_CRANKING_RPM, "cranking_rpm");
 static LENameOrdinalPair leStartupFuelPumpDuration(LE_METHOD_STARTUP_FUEL_PUMP_DURATION, "startup_fuel_pump_duration");
 static LENameOrdinalPair leInShutdown(LE_METHOD_IN_SHUTDOWN, "in_shutdown");
+static LENameOrdinalPair leInMrBench(LE_METHOD_IN_SHUTDOWN, "in_mr_bench");
 static LENameOrdinalPair leTimeSinceTrigger(LE_METHOD_TIME_SINCE_TRIGGER_EVENT, "time_since_trigger");
 
 #include "fsio_names.def"