Automotive Service Excellence (ASE) Air Conditioner Certification Practice Exam 2025 - Free ASE Air Conditioner Practice Questions and Study Guide

Both technicians are correct because each possibility they mentioned can impact the efficiency of the Electronic Automatic Temperature Control (EATC) system, which ultimately affects the perceived temperature inside the vehicle.

When the aspirator tube has an obstruction, it cannot effectively draw in air to monitor the temperature inside the cabin. This can lead to the system not accurately sensing the cabin temperature, thus resulting in the air conditioning not functioning as it should. Consequently, the temperature inside the vehicle may not match the desired setting.

If the aspirator tube is disconnected from the duct, it also fails to perform its intended function. In this scenario, the system is unable to receive the necessary air intake for accurate temperature readings, potentially leading to similar consequences as with an obstruction.

Both situations can lead to inadequate cooling and thereby affect the comfort of the occupants in the vehicle, making it essential to address either issue to restore optimal functioning of the EATC system.