diff --git a/tests/benchmarks/multicore/idle_uarte/prj.conf b/tests/benchmarks/multicore/idle_uarte/prj.conf
index b0c7890c2a90..59785a532261 100644
--- a/tests/benchmarks/multicore/idle_uarte/prj.conf
+++ b/tests/benchmarks/multicore/idle_uarte/prj.conf
@@ -1,6 +1,7 @@
 CONFIG_SERIAL=y
 CONFIG_MAIN_STACK_SIZE=2048
 CONFIG_UART_ASYNC_API=y
+CONFIG_UART_USE_RUNTIME_CONFIGURE=y
 
 CONFIG_PM=y
 CONFIG_PM_S2RAM=y
diff --git a/tests/benchmarks/multicore/idle_uarte/src/main.c b/tests/benchmarks/multicore/idle_uarte/src/main.c
index f54ca19df1eb..97e3916fa475 100644
--- a/tests/benchmarks/multicore/idle_uarte/src/main.c
+++ b/tests/benchmarks/multicore/idle_uarte/src/main.c
@@ -83,8 +83,9 @@ int main(void)
 		return -1;
 	}
 
+	/* UART is disabled so expect error. */
 	err = uart_rx_disable(uart_dev);
-	if (err != 0) {
+	if (err != -EFAULT) {
 		printk("Unexpected error when disabling RX: %d\n", err);
 		return -1;
 	}
diff --git a/tests/benchmarks/multicore/idle_uarte/testcase.yaml b/tests/benchmarks/multicore/idle_uarte/testcase.yaml
index 223775d47320..d55bf1944e9a 100644
--- a/tests/benchmarks/multicore/idle_uarte/testcase.yaml
+++ b/tests/benchmarks/multicore/idle_uarte/testcase.yaml
@@ -13,6 +13,6 @@ tests:
     extra_args:
       - SB_CONF_FILE=sysbuild/nrf54h20dk_nrf54h20_cpurad.conf
     harness_config:
-      fixture: ppk_power_measure
+      fixture: gpio_loopback
       pytest_root:
-        - "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_and_data_dump_power_consumption"
+        - "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_and_data_dump_power_consumption_uarte"