diff --git a/modules/canbus/vehicle/transit/protocol/BUILD b/modules/canbus/vehicle/transit/protocol/BUILD
index 3ff33437efcc4aebe371687b07e100dd758b1dc6..357afc6d1396304583bc7f7e8d3b51cd214f243d 100644
--- a/modules/canbus/vehicle/transit/protocol/BUILD
+++ b/modules/canbus/vehicle/transit/protocol/BUILD
@@ -144,6 +144,17 @@ cc_library(
     ],
 )
 
+cc_test(
+    name = "llc_diag_steeringcontrol_722_test",
+    size = "small",
+    srcs = ["llc_diag_steeringcontrol_722_test.cc"],
+    deps = [
+        ":llc_diag_steeringcontrol_722",
+        "@gtest//:main",
+        "//modules/canbus/vehicle/transit/protocol:canbus_transit_protocol",
+    ],
+)
+
 cc_library(
     name = "llc_motioncommandfeedback1_22",
     srcs = [
diff --git a/modules/canbus/vehicle/transit/protocol/llc_diag_steeringcontrol_722_test.cc b/modules/canbus/vehicle/transit/protocol/llc_diag_steeringcontrol_722_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..908b10e4d8cd29d0d71218cee7c017583ca12cef
--- /dev/null
+++ b/modules/canbus/vehicle/transit/protocol/llc_diag_steeringcontrol_722_test.cc
@@ -0,0 +1,49 @@
+/******************************************************************************
+ * Copyright 2019 The Apollo Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *****************************************************************************/
+
+#include "modules/canbus/vehicle/transit/protocol/llc_diag_steeringcontrol_722.h"
+#include "gtest/gtest.h"
+
+#include "modules/drivers/canbus/common/byte.h"
+#include "modules/drivers/canbus/common/canbus_consts.h"
+
+namespace apollo {
+namespace canbus {
+namespace transit {
+using ::apollo::drivers::canbus::Byte;
+
+class llc_diag_steeringcontrol_722Test : public ::testing ::Test {
+ public:
+  virtual void SetUp() {}
+};
+
+TEST_F(llc_diag_steeringcontrol_722Test, General) {
+  Llcdiagsteeringcontrol722 steeringctrl_722_;
+  uint8_t data[8] = {0x67, 0x62, 0x63, 0x64, 0x51, 0x52, 0x53};
+  EXPECT_EQ(steeringctrl_722_.GetPeriod(), 10 * 1000);
+  steeringctrl_722_.UpdateData(data);
+  EXPECT_EQ(data[0], 0b00000000);
+  EXPECT_EQ(data[1], 0b00000000);
+  EXPECT_EQ(data[2], 0b00000000);
+  EXPECT_EQ(data[3], 0b00000000);
+  EXPECT_EQ(data[4], 0b00000000);
+  EXPECT_EQ(data[5], 0b00000000);
+  EXPECT_EQ(data[6], 0b00000000);
+}
+
+}  // namespace transit
+}  // namespace canbus
+}  // namespace apollo