Index: firmware/App/Drivers/SafetyShutdown.c
===================================================================
diff -u -r6ddc5298786a4b5055f75330c49b62c6ae7adeb0 -r85ee38d93c39f64d5933afd647e53918b80cf03a
--- firmware/App/Drivers/SafetyShutdown.c	(.../SafetyShutdown.c)	(revision 6ddc5298786a4b5055f75330c49b62c6ae7adeb0)
+++ firmware/App/Drivers/SafetyShutdown.c	(.../SafetyShutdown.c)	(revision 85ee38d93c39f64d5933afd647e53918b80cf03a)
@@ -47,9 +47,7 @@
 #define MAX_BACKUP_ALARM_CURRENT_MA         10.0                  ///< Maximum backup alarm audio current (in mA) detected when safety shutdown is recovered.
 
 #define SAFETY_POST_24V_NOT_CUT             1                     ///< Safety shutdown POST failed because 24V was not cut when safety line pulled.
-#define SAFETY_POST_NO_BUZZER               2                     ///< Safety shutdown POST failed because buzzer was not detected when safety line pulled.
-#define SAFETY_POST_NO_24V_RESTORE          3                     ///< Safety shutdown POST failed because 24V was not restored when safety line reset.
-#define SAFETY_POST_NO_BUZZER_OFF           4                     ///< Safety shutdown POST failed because buzzer was not turned off when safety line reset.
+#define SAFETY_POST_NO_24V_RESTORE          2                     ///< Safety shutdown POST failed because 24V was not restored when safety line reset.
 
 /// Enumeration of safety shutdown self-test states.
 typedef enum Safety_Shutdown_Self_Test_States
@@ -146,12 +144,6 @@
                     SET_ALARM_WITH_2_F32_DATA( ALARM_ID_HD_SAFETY_SHUTDOWN_POST_TEST_FAILED, (F32)SAFETY_POST_24V_NOT_CUT, v24 );
                     safetyShutdownSelfTestStatus = SELF_TEST_STATUS_FAILED;
                 }
-                // Verify backup alarm audio is on when w.d. expired
-                else if ( audioCurrent < MIN_BACKUP_ALARM_CURRENT_MA )
-                {
-                    SET_ALARM_WITH_2_F32_DATA( ALARM_ID_HD_SAFETY_SHUTDOWN_POST_TEST_FAILED, (F32)SAFETY_POST_NO_BUZZER, audioCurrent );
-                    safetyShutdownSelfTestStatus = SELF_TEST_STATUS_FAILED;
-                }
                 safetyShutdownSelfTestTimerCount = getMSTimerCount();
                 CLR_SAFETY_SHUTDOWN();
                 safetyShutdownActivated = FALSE;
@@ -171,12 +163,6 @@
                     SET_ALARM_WITH_2_F32_DATA( ALARM_ID_HD_SAFETY_SHUTDOWN_POST_TEST_FAILED, (F32)SAFETY_POST_NO_24V_RESTORE, v24 );
                     safetyShutdownSelfTestStatus = SELF_TEST_STATUS_FAILED;
                 }
-                // Verify backup alarm audio is on when w.d. recovered
-                else if ( audioCurrent > MAX_BACKUP_ALARM_CURRENT_MA )
-                {
-                    SET_ALARM_WITH_2_F32_DATA( ALARM_ID_HD_SAFETY_SHUTDOWN_POST_TEST_FAILED, (F32)SAFETY_POST_NO_BUZZER_OFF, audioCurrent );
-                    safetyShutdownSelfTestStatus = SELF_TEST_STATUS_FAILED;
-                }
                 else
                 {
                     safetyShutdownSelfTestStatus = SELF_TEST_STATUS_PASSED;