Normally the engine only runs to warm itself up. But if you want the engine to idle, to perform a service or emissions inspection, you can set your Hybrid Auris to maintenance mode.
1. Press the start button twice with your foot off the brake pedal
2. Depress the accelerator two times fully (make sure, the vehicle is in park)
3. Put the vehicle in neutral (press the brake pedal)
4. Depress the accelerator two times fully
5. Put the vehicle back into park (press the brake pedal)
6. Depress the accelerator two times fully
Now you should see the MAINTENANCE MODE on the multi-information display
7. Depress the brake pedal and press the Start button
The engine will immediately start to idle and will do so until you turn off the car. Be careful with maintenance mode: traction control and many other self-preservation systems are disabled when the car is in maintenance mode.
The idle speed is about 1000 rpm and if you depress accelerator pedal, max idle speed is 2500 rpm.