diff --git a/lib/busvoodoo_hiz.c b/lib/busvoodoo_hiz.c
index de82b53..57e4df5 100644
--- a/lib/busvoodoo_hiz.c
+++ b/lib/busvoodoo_hiz.c
@@ -52,11 +52,17 @@ static bool busvoodoo_hiz_setup(char** prefix, const char* line)
 	*prefix = "HiZ"; // set command line prefix
 	led_blue(); // switch blue LED on to show we are ready
 	busvoodoo_oled_text_left("HiZ"); // set mode title on OLED display
-	const char* pinout_io[10] = {"GND", "3V3", "5V", "LV", NULL, NULL, NULL, NULL, NULL, NULL}; // HiZ mode pinout
+	const char* pinout_io[10] = {"GND", "3V3", "5V", "LV", NULL, NULL, NULL, NULL, NULL, NULL}; // HiZ mode I/O pinout
 	for (uint8_t i=0; i<LENGTH(pinout_io) && i<LENGTH(busvoodoo_global_pinout_io); i++) {
 		busvoodoo_global_pinout_io[i] = pinout_io[i]; // set pin names
 	}
-	busvoodoo_oled_text_pinout(pinout_io, true); // set pinout on display
+	if (busvoodoo_full) {
+		const char* pinout_rscan[5] = {"HV", NULL, NULL, NULL, NULL}; // HiZ mode RS/CAN pinout
+		for (uint8_t i=0; i<LENGTH(pinout_rscan) && i<LENGTH(busvoodoo_global_pinout_rscan); i++) {
+			busvoodoo_global_pinout_rscan[i] = pinout_rscan[i]; // set pin names
+		}
+	}	
+	busvoodoo_oled_text_pinout(busvoodoo_global_pinout_io, true); // set pinout on display
 	busvoodoo_oled_update(); // update display to show text and pinout
 	return true;	
 }