During the air leak test, what position should the ignition be turned to?

During the air leak test, the ignition should be turned to the "Off/left position." This is important because having the ignition off ensures that the vehicle's electrical systems are inactive, preventing any interference during the testing process. Additionally, it avoids unnecessary energy consumption and helps ensure safety by ensuring that no electrical features are activated while the technician is checking for air leaks.

If the ignition were in the "On position," it could lead to electrical components being powered, which could impact the reliability of the test. The other positions, such as "Right position" or "Neutral position," do not specifically align with the standard procedure for conducting the air leak test, which prioritizes safety and accuracy through the proper operation of vehicle systems.