Index: firmware/App/Monitors/BloodLeak.c
===================================================================
diff -u -r208d9299339c3b89ac7fbd2100eef3aa121bf591 -r2fbc96d39b371df18e2b1b641fcd4917806c0767
--- firmware/App/Monitors/BloodLeak.c	(.../BloodLeak.c)	(revision 208d9299339c3b89ac7fbd2100eef3aa121bf591)
+++ firmware/App/Monitors/BloodLeak.c	(.../BloodLeak.c)	(revision 2fbc96d39b371df18e2b1b641fcd4917806c0767)
@@ -2084,7 +2084,7 @@
  * @details Inputs: none
  * @details Outputs: bloodLeakZeroingStatus.zeroingDriftIntervalTimeMS,
  * bloodLeakZeroingStatus.zeroingUpperRangeIntervalTimeMS
- * @param message Override message from Dialin to override the blood leak
+ * @param message from Dialin to override the blood leak
  * zeroing interval.
  * @return TRUE if override successful, FALSE if not
  *************************************************************************/
@@ -2111,6 +2111,28 @@
     return result;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The testBloodLeakZeroSequenceRequest function requests the blood leak
+ * detector's zero sequence command.
+ * @details Inputs: none
+ * @details Outputs: none
+ * @param message from Dialin to request zero sequence
+ * @return TRUE if override successful, FALSE if not
+ *************************************************************************/
+BOOL testBloodLeakZeroSequenceRequest( MESSAGE_T *message )
+{
+    BOOL result = FALSE;
+
+    if ( 0 == message->hdr.payloadLen )
+    {
+        result = TRUE;
+        zeroBloodLeak();
+    }
+
+    return result;
+}
+
 /**@}*/
 
 
Index: firmware/App/Monitors/BloodLeak.h
===================================================================
diff -u -r208d9299339c3b89ac7fbd2100eef3aa121bf591 -r2fbc96d39b371df18e2b1b641fcd4917806c0767
--- firmware/App/Monitors/BloodLeak.h	(.../BloodLeak.h)	(revision 208d9299339c3b89ac7fbd2100eef3aa121bf591)
+++ firmware/App/Monitors/BloodLeak.h	(.../BloodLeak.h)	(revision 2fbc96d39b371df18e2b1b641fcd4917806c0767)
@@ -65,6 +65,7 @@
 BOOL testBloodLeakEmbeddedModeInfoOverride( MESSAGE_T *message );
 BOOL testBloodLeakIntensityMovingAverageOverride( MESSAGE_T *message );
 BOOL testBloodLeakZeroingIntervalInMillisecondsOverride( MESSAGE_T *message );
+BOOL testBloodLeakZeroSequenceRequest( MESSAGE_T *message );
 
 /**@}*/
 
Index: firmware/App/Services/FpgaDD.c
===================================================================
diff -u -r208d9299339c3b89ac7fbd2100eef3aa121bf591 -r2fbc96d39b371df18e2b1b641fcd4917806c0767
--- firmware/App/Services/FpgaDD.c	(.../FpgaDD.c)	(revision 208d9299339c3b89ac7fbd2100eef3aa121bf591)
+++ firmware/App/Services/FpgaDD.c	(.../FpgaDD.c)	(revision 2fbc96d39b371df18e2b1b641fcd4917806c0767)
@@ -3091,7 +3091,8 @@
  *************************************************************************/
 U08 getFPGABloodLeakStatus( void )
 {
-    U08 selfTestStatus = 0; //(U08)( ( fpgaSensorReadings.fpgaGPIO & FPGA_BLOOD_LEAK_STATUS_MASK ) >> FPGA_BLOOD_LEAK_ST_BIT_INDEX );
+    U08 selfTestStatus = fpgaSensorReadings.fpgaD42PulseStatus;
+
     return selfTestStatus;
 }
 
Index: firmware/App/Services/Messaging.c
===================================================================
diff -u -r208d9299339c3b89ac7fbd2100eef3aa121bf591 -r2fbc96d39b371df18e2b1b641fcd4917806c0767
--- firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 208d9299339c3b89ac7fbd2100eef3aa121bf591)
+++ firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 2fbc96d39b371df18e2b1b641fcd4917806c0767)
@@ -171,6 +171,7 @@
     { MSG_ID_DD_BLOOD_LEAK_EMBEDDED_MODE_INFO_OVERRIDE_REQUEST,                     &testBloodLeakEmbeddedModeInfoOverride },
     { MSG_ID_DD_BLOOD_LEAK_INTENSITY_MOVING_AVERAGE_OVERRIDE_REQUEST,               &testBloodLeakIntensityMovingAverageOverride },
     { MSG_ID_DD_BLOOD_LEAK_ZEROING_INTERVAL_IN_MS_OVERRIDE_REQUEST,                 &testBloodLeakZeroingIntervalInMillisecondsOverride },
+    { MSG_ID_DD_BLOOD_LEAK_ZERO_REQUEST,                                            &testBloodLeakZeroSequenceRequest },
 #ifdef __PUMPTEST__
     { MSG_ID_DD_PISTON_PUMP_DATA_PUBLISH_OVERRIDE_REQUEST,                          &testDDPistonPumpControlDataPublishIntervalOverride },
     { MSG_ID_DD_PISTON_PUMP_START_STOP_OVERRIDE_REQUEST,                            &testDDPistonPumpStartStopOverride },