diff --git a/GW/src/System_Layer/Drive_Mode.c b/GW/src/System_Layer/Drive_Mode.c
index e653e7aa..5902fb7f 100644
--- a/GW/src/System_Layer/Drive_Mode.c
+++ b/GW/src/System_Layer/Drive_Mode.c
@@ -147,18 +147,24 @@ void CheckDriveMode(void)
 	else
 	{
 		bool isRCRequest  = (GV_RC_Drive_Mode == 1);
-		bool isACURequest = (GV_ACU_Drive_mode == 1 || GV_RC_ACU_Drive_Mode == 1);
+		bool isACURequest = (GV_ACU_Drive_mode == 1 && GV_RC_ACU_Drive_Mode == 1);
 
 		if(isRCRequest)		// RC
-			GV_VCU_Drive_Mode = DRIVE_MODE_RC;
+		{
+			if (GV_VCU_Drive_Mode == DRIVE_MODE_DEFAULT)
+				GV_VCU_Drive_Mode = DRIVE_MODE_RC;
+		}
 		else if(isACURequest)
 		{
-			ACU_Arc_check();
+			if(GV_VCU_Drive_Mode == DRIVE_MODE_DEFAULT)
+			{
+				ACU_Arc_check();
+				bool isACUFault = (GV_ACU_ECU_Fault_Flag == 1 || GV_ACU_ECU_Fault_Flag1 == 1 || GV_ACU_ECU_Fault_Flag2 == 1 || GV_ACU_ECU_Fault_Flag3 == 1);
 
-			bool isACUFault = (GV_ACU_ECU_Fault_Flag == 1 || GV_ACU_ECU_Fault_Flag1 == 1 || GV_ACU_ECU_Fault_Flag2 == 1 || GV_ACU_ECU_Fault_Flag3 == 1);
+				if(!isACUFault)
+					GV_VCU_Drive_Mode = DRIVE_MODE_ACU;
+			}
 
-			if(!isACUFault)
-				GV_VCU_Drive_Mode = DRIVE_MODE_ACU;
 		}
 		else
 			GV_VCU_Drive_Mode = DRIVE_MODE_DEFAULT;