diff --git a/automotive/can/1.0/ICanController.hal b/automotive/can/1.0/ICanController.hal
index e32e593..aaf85e9 100644
--- a/automotive/can/1.0/ICanController.hal
+++ b/automotive/can/1.0/ICanController.hal
@@ -70,6 +70,12 @@
 
         /** Provided bit rate is not supported by the hardware. */
         BAD_BITRATE,
+
+        /**
+         * Provided service name ({@see BusConfig#name}) either has invalid
+         * format or is not listed in device manifest file.
+         */
+        BAD_SERVICE_NAME,
     };
 
     /**
diff --git a/automotive/can/1.0/default/CanController.cpp b/automotive/can/1.0/default/CanController.cpp
index dd80402..0700c77 100644
--- a/automotive/can/1.0/default/CanController.cpp
+++ b/automotive/can/1.0/default/CanController.cpp
@@ -48,7 +48,7 @@
 
     if (!isValidName(config.name)) {
         LOG(ERROR) << "Bus name " << config.name << " is invalid";
-        return ICanController::Result::UNKNOWN_ERROR;
+        return ICanController::Result::BAD_SERVICE_NAME;
     }
 
     if (mCanBuses.find(config.name) != mCanBuses.end()) {
@@ -90,7 +90,7 @@
         if (!busService->down()) {
             LOG(WARNING) << "Failed to bring down CAN bus that failed to register";
         }
-        return ICanController::Result::UNKNOWN_ERROR;
+        return ICanController::Result::BAD_SERVICE_NAME;
     }
 
     mCanBuses[config.name] = busService;
diff --git a/automotive/can/1.0/vts/functional/VtsHalCanControllerV1_0TargetTest.cpp b/automotive/can/1.0/vts/functional/VtsHalCanControllerV1_0TargetTest.cpp
index 0c5d976..8397215 100644
--- a/automotive/can/1.0/vts/functional/VtsHalCanControllerV1_0TargetTest.cpp
+++ b/automotive/can/1.0/vts/functional/VtsHalCanControllerV1_0TargetTest.cpp
@@ -235,7 +235,7 @@
     const std::string name = "";
 
     assertRegistered(name, false);
-    if (!up(InterfaceType::VIRTUAL, name, "vcan57", ICanController::Result::UNKNOWN_ERROR)) {
+    if (!up(InterfaceType::VIRTUAL, name, "vcan57", ICanController::Result::BAD_SERVICE_NAME)) {
         GTEST_SKIP();
     }
     assertRegistered(name, false);
@@ -246,7 +246,7 @@
     const std::string name = "ab012345678901234567890123456789c";
 
     assertRegistered(name, false);
-    if (!up(InterfaceType::VIRTUAL, name, "vcan57", ICanController::Result::UNKNOWN_ERROR)) {
+    if (!up(InterfaceType::VIRTUAL, name, "vcan57", ICanController::Result::BAD_SERVICE_NAME)) {
         GTEST_SKIP();
     }
     assertRegistered(name, false);