ASE L4 Domain 1: General ADAS Service and Diagnosis Welcome to your ASE L4 Domain 1: General ADAS Service and Diagnosis 1. ASE L4: General ADAS Service and Diagnosis When performing a post-repair calibration on a vehicle's ADAS, the technician must ensure the vehicle's fuel tank is: A. Empty to prevent excess weight. B. At least half full to simulate a common driving condition. C. Full to provide maximum stability. D. Level is not significant for ADAS calibration. None 2. ASE L4: General ADAS Service and Diagnosis A vehicle with ADAS is pulling to one side after a windshield replacement. The most likely cause is: A. Incorrect tire pressure. B. Faulty steering angle sensor. C. Misalignment of the front camera. D. Wheel alignment issue. None 3. ASE L4: General ADAS Service and Diagnosis What is the potential impact of using non-OEM windshields on ADAS functionality? A. No impact, as long as the windshield is clear. B. Decreased radio reception. C. Incorrect ADAS operation due to altered optical properties. D. Improved ADAS operation due to better quality glass. None 4. ASE L4: General ADAS Service and Diagnosis When calibrating the radar sensor of an ADAS, the most critical factor to consider is: A. Ambient temperature. B. Sensor mounting angle. C. The color of the vehicle's paint. D. The level of vehicle's coolant. None 5. ASE L4: General ADAS Service and Diagnosis A technician is unable to complete the static calibration process on a lane-keeping assistance system. Which of the following is NOT a potential reason for this failure? A. Inadequate lighting conditions in the service bay. B. Incorrect placement of the calibration targets. C. The battery voltage is slightly above the nominal value. D. Interference from reflective objects in the calibration area. None 6. ASE L4: General ADAS Service and Diagnosis During a test drive following ADAS service, a technician notices that the automatic emergency braking AEB system does not engage when expected. This could be due to: A. A misaligned rear-view mirror. B. A recently cleaned vehicle exterior. C. Depleted windshield washer fluid. D. Inaccurate calibration of the forward-facing radar. None 7. ASE L4: General ADAS Service and Diagnosis What is the recommended procedure when a diagnostic trouble code DTC related to ADAS persists even after clearing and attempting recalibration? A. Replace the vehicle's battery. B. Perform a hard reset on the vehicle's electrical system. C. Reinspect the related ADAS components and connections. D. Drive the vehicle for at least 100 miles to reset the system. None 8. ASE L4: General ADAS Service and Diagnosis In vehicles equipped with ADAS, technician A states that wheel alignment is critical because it can affect the thrust angle and, consequently, the radar sensor's aiming. Technician B states that wheel alignment has no impact on ADAS calibration. Who is correct? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B None 9. ASE L4: General ADAS Service and Diagnosis When a forward-facing camera used for ADAS is being calibrated, what environmental condition could most significantly affect the calibration process? A. Barometric pressure B. Relative humidity C. Ambient light intensity D. Atmospheric temperature None 10. ASE L4: General ADAS Service and Diagnosis What is the purpose of performing a 'health check' scan before and after ADAS service and calibration? A. To document the repair process for customer records. B. To ensure all vehicle systems are functioning correctly and to confirm that no new faults have been introduced during the service. C. To reset the vehicle's oil life monitor. D. To check for software updates for the infotainment system. None 11. ASE L4: General ADAS Service and Diagnosis A technician receives an error during the dynamic calibration of a lane departure warning system. What should be the first step in troubleshooting? A. Immediately replace the lane departure warning camera. B. Check for software updates for the vehicle's ECU. C. Inspect the vehicle's alignment and tire conditions. D. Drive the vehicle at a different time of day when traffic patterns have changed. None 12. ASE L4: General ADAS Service and Diagnosis A technician is diagnosing an ADAS system that utilizes a LIDAR sensor. When verifying the functionality of the LIDAR sensor, what is a critical environmental factor that must be considered? A. Exterior noise levels B. Ambient air quality C. Level of ambient light D. Proximity to large metallic objects None 13. ASE L4: General ADAS Service and Diagnosis What is the most appropriate initial action when encountering a persistent fault code indicating "Radar Sensor Blockage" after multiple attempts to recalibrate? A. Clear the fault code and attempt recalibration again. B. Physically inspect the radar sensor for obstructions, damage, or misalignment. C. Replace the radar sensor with a new unit. D. Test drive the vehicle to see if the code clears on its own. None 14. ASE L4: General ADAS Service and Diagnosis Which of the following conditions must be met for successful dynamic calibration of ADAS systems that require driving the vehicle as part of the procedure? A. The vehicle should have at least two passengers to simulate typical driving weight. B. The vehicle must be driven on a road with a variety of inclines and declines. C. Calibration must be performed under specific driving speeds and environmental conditions outlined by the manufacturer. D. The vehicle should be loaded with cargo to ensure suspension compression. None 15. ASE L4: General ADAS Service and Diagnosis After replacing a front ADAS sensor, the new sensor fails to calibrate. Technician A says that paint thickness on the vehicle's bumper can affect sensor operation. Technician B says that only the sensor's orientation matters. Who is correct? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B None 16. ASE L4: General ADAS Service and Diagnosis In an ADAS-equipped vehicle, the blind-spot monitoring system is not detecting vehicles on the passenger side. Prior to component replacement, what should be checked first? A. The passenger side door speaker operation. B. The latest software updates for the infotainment system. C. The alignment and cleanliness of the passenger side radar or camera sensor. D. The battery voltage and charging system output. None 17. ASE L4: General ADAS Service and Diagnosis What is the key reason for ensuring the correct inflation of all tires before performing an ADAS calibration? A. To activate the tire pressure monitoring system (TPMS). B. To maintain proper ride height for sensor alignment. C. To reduce the tire noise for better sensor performance. D. To enhance the vehicle's fuel efficiency during calibration. None 18. ASE L4: General ADAS Service and Diagnosis When a forward-facing ADAS camera is not aligning properly during static calibration, what uncommon but critical factor should be considered as a cause? A. The type of headlight bulbs used. B. The cleanliness of the windshield inside and out. C. The amount of fuel in the vehicle's tank. D. The wear pattern of the front tires. None 19. ASE L4: General ADAS Service and Diagnosis When troubleshooting an ADAS system, a technician finds a fault code that does not have a detailed troubleshooting procedure in the service manual. What should be the technician's next step? A. Clear the code and see if it returns. B. Use an OEM-specific diagnostic tool for further investigation. C. Replace the ADAS control module. D. Refer to an online forum for advice. None 20. ASE L4: General ADAS Service and Diagnosis A vehicle equipped with a 360-degree camera system is experiencing issues with the stitching of images, leading to inaccurate representation of surrounding space. Before replacing any camera, what should be the technician's primary diagnostic step? A. Check for updates to the vehicle's multimedia system. B. Ensure all cameras are clean, correctly oriented, and the lenses are undamaged. C. Reboot the vehicle's electrical system by disconnecting the battery. D. Perform a wheel alignment service. None 21. ASE L4: General ADAS Service and Diagnosis If a vehicle's adaptive cruise control system intermittently fails to maintain set speed or follow distance, which of the following is the LEAST likely cause? A. Faulty radar sensor B. Malfunctioning vehicle speed sensor C. Incorrectly installed windshield wipers D. Software glitch in the control module None 22. ASE L4: General ADAS Service and Diagnosis When calibrating a surround-view monitoring system, what is the most critical condition that must be met to ensure proper functionality? A. The calibration area must be well-ventilated. B. The calibration surface must be flat and horizontal. C. The calibration must be done during daylight hours. D. The vehicle's engine must be at operating temperature. None 23. ASE L4: General ADAS Service and Diagnosis During the calibration of a lane-keeping assist system, which factor is essential to check in the workshop environment? A. Ceiling height in the workshop B. Electromagnetic interference from other equipment C. Brightness of the workshop lighting D. Proximity to radio transmission towers None 24. ASE L4: General ADAS Service and Diagnosis What is the primary purpose of conducting a preload stress test on ADAS mounting points after a collision repair? A. To check the paint thickness around the sensor area. B. To verify the rigidity of the vehicle's frame. C. To ensure that there is no additional stress affecting sensor alignment. D. To determine the torque specifications for the sensor mount bolts. None 25. ASE L4: General ADAS Service and Diagnosis A technician encounters an error message stating, "Lidar Sensor Temperature Out of Range," during a calibration process. What should be the technician's first course of action? A. Check the ambient temperature and compare it with the manufacturer's specified range for calibration. B. Replace the LIDAR sensor immediately. C. Ignore the error and continue with the calibration. D. Place a heating pad around the sensor to increase its temperature. None 26. ASE L4: General ADAS Service and Diagnosis What is a common requirement for the initialization procedure of a steering angle sensor in an ADAS-equipped vehicle? A. The fuel tank must be at least half full. B. The vehicle's battery should be disconnected for 30 minutes prior. C. The steering wheel must be positioned exactly straight ahead. D. The vehicle's tires should be rotated before the procedure. None 27. ASE L4: General ADAS Service and Diagnosis An ADAS system that uses road sign recognition technology is failing to identify signs correctly. What would be the most relevant diagnostic step to take first? A. Inspect the camera lens for cleanliness and clarity. B. Test the vehicle's alternator for proper charging voltage. C. Update the GPS maps in the navigation system. D. Perform a wheel alignment on the vehicle. None 28. ASE L4: General ADAS Service and Diagnosis A vehicle with a park assist system is inaccurately detecting obstacles, leading to false alerts. Which of the following steps is critical before component replacement? A. Conducting a battery load test B. Ensuring all ultrasonic sensors are clean and undamaged C. Checking the alignment of the headlamps D. Verifying the correct inflation of the spare tire None 29. ASE L4: General ADAS Service and Diagnosis Which of the following conditions is least likely to affect the diagnostic process for an ADAS system using GPS for vehicle positioning? A. The vehicle is inside a building or covered area. B. The vehicle's windshield is tinted with non-standard film. C. There is severe weather, such as a thunderstorm. D. The GPS software is outdated. None 30. ASE L4: General ADAS Service and Diagnosis A technician needs to verify the horizontal alignment of a forward-facing radar sensor. What is the most accurate method to perform this task? A. Use a level on the vehicle's hood and align the sensor by eye. B. Apply an alignment sticker on the radar lens and use a laser tool. C. Employ a manufacturer-specific alignment jig and tool set. D. Compare the radar readings to those of a known good vehicle. None 1 out of 30 Time is Up! Time's up
