Index: firmware/App/Drivers/GPIO.c
===================================================================
diff -u -r3a8cf075eb6f0d255f516ac26bac7fbaacfde14a -r395522dffef1348e176564925656012f529c1910
--- firmware/App/Drivers/GPIO.c	(.../GPIO.c)	(revision 3a8cf075eb6f0d255f516ac26bac7fbaacfde14a)
+++ firmware/App/Drivers/GPIO.c	(.../GPIO.c)	(revision 395522dffef1348e176564925656012f529c1910)
@@ -1,16 +1,16 @@
 /**************************************************************************
 *
-* Copyright (c) 2024-2024 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2024-2026 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
 * @file    GPIO.c
 *
-* @author  (last)      Sean
-* @date    (last)      07-Aug-2024
+* @author  (last)      Sean Nash
+* @date    (last)      24-Jan-2025
 *
-* @author  (original)  Sean
+* @author  (original)  Sean Nash
 * @date    (original)  07-Aug-2024
 *
 ***************************************************************************/
@@ -50,9 +50,6 @@
 #define SAFE_GIO_PORT_PIN                   2U                          ///< GPIO pin ID on port B for safety shutdown input signal.
 #define SAFETY_GIO_PORT_PIN                 3U                          ///< GPIO pin ID on port B for safety shutdown output signal
 
-// hetPORT1 pin assignments
-#define AIR_PUMP_GPIO_PIN                   4U                          ///< GPIO pin ID on hetPORT1 for air pump motor state.
-
 // MIBSPI5 port pin assignments for pins connected to CPLD
 #define GREEN_SPI5_PORT_MASK                0x00000200                  ///< (CLK     - re-purposed as output GPIO) for green alarm lamp signal.
 #define BLUE_SPI5_PORT_MASK                 0x00000400                  ///< (SIMO[0] - re-purposed as output GPIO) for blue alarm lamp signal.
@@ -358,18 +355,4 @@
     CLR_BACKUP_AUDIO_ENABLE()
 }
 
-/*********************************************************************//**
- * @brief
- * The setAirPumpMotorSignal function sets the air pump output signal to
- * the given pin level.
- * @details \b Inputs: none
- * @details \b Outputs: Air pump output signal set to given level.
- * @param signal Signal level to set the air pump output to
- * @return none
- *************************************************************************/
-void setAirPumpMotorSignal( PIN_SIGNAL_STATE_T signal )
-{
-    gioSetBit( hetPORT1, AIR_PUMP_GPIO_PIN, (U32)signal );
-}
-
 /**@}*/