Index: firmware/App/Modes/ModeFault.c
===================================================================
diff -u -r830213bc6dcc1a684610caf78c79d55f2cb41e93 -r5db64c182f58f16d6b4b9a5131a2913b4a156ccc
--- firmware/App/Modes/ModeFault.c	(.../ModeFault.c)	(revision 830213bc6dcc1a684610caf78c79d55f2cb41e93)
+++ firmware/App/Modes/ModeFault.c	(.../ModeFault.c)	(revision 5db64c182f58f16d6b4b9a5131a2913b4a156ccc)
@@ -378,4 +378,66 @@
     return state;
 }
 
+
+/*************************************************************************
+ *                       TEST SUPPORT FUNCTIONS
+ *************************************************************************/
+
+
+/*********************************************************************//**
+ * @brief
+ * The testValidateDDFaultChangeReq function validate whether request
+ * operation sub mode is legal or not.
+ * @details \b Inputs: none
+ * @details \b Outputs: none
+ * @param newSubMode the enumerated sub state of the mode
+ * @return TRUE if request is legal, FALSE if not
+ *************************************************************************/
+BOOL testValidateDDFaultChangeReq( U32 newSubMode )
+{
+    BOOL result = FALSE;
+
+    if ( newSubMode < NUM_OF_DD_FAULT_STATES )
+    {
+        switch ( newSubMode )
+        {
+            case DD_FAULT_STATE_START:
+            case DD_FAULT_DEENERGIZED_STATE:
+            case DD_FAULT_ENERGIZED_STATE:
+            default:
+                result = TRUE;
+                break;
+        }
+    }
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The testSignalNewDDFaultSubMode function request transition to a
+ * new operation sub mode.
+ * @details \b Inputs: none
+ * @details \b Outputs: none
+ * @param newSubMode the enumerated sub state of the mode
+ * @return none
+ *************************************************************************/
+void testSignalNewDDFaultSubMode( U32 newSubMode )
+{
+    if ( newSubMode < NUM_OF_DD_FAULT_STATES )
+    {
+        faultState = (DD_FAULT_STATE_T)newSubMode;
+
+        switch ( newSubMode )
+        {
+            // Any of these state require no special handling
+            case DD_FAULT_STATE_START:
+            case DD_FAULT_DEENERGIZED_STATE:
+            case DD_FAULT_ENERGIZED_STATE:
+            default:
+                break;
+        }
+    }
+}
+
 /**@}*/