ASE L3 Domain 5: Hybrid Supporting Systems Welcome to your ASE L3 Domain 5: Hybrid Supporting Systems 1. ASE L3: Hybrid Supporting Systems When performing a diagnostic procedure on a hybrid vehicle's thermal management system, which of the following would indicate a problem with the system's ability to maintain the battery at optimal operating temperature? A. Inconsistent cabin heating performance. B. Fluctuating high-voltage battery charge levels. C. Elevated temperature readings from the battery temperature sensors. D. Rapid engagement and disengagement of the internal combustion engine. None 2. ASE L3: Hybrid Supporting Systems A hybrid vehicle's state of charge SOC for the high-voltage battery remains lower than expected despite normal driving conditions and proper operation of the charging system. What could be a possible cause? A. The electric power steering system is drawing excessive current. B. The auxiliary water pump for the heater circuit is malfunctioning. C. A parasitic draw from the high-voltage battery when the vehicle is powered down. D. Incorrect tire pressure. None 3. ASE L3: Hybrid Supporting Systems What could cause an intermittent loss of power assist from the electric drive motor in a hybrid vehicle? A. A defective 12-volt battery. B. Intermittent connection in the high-voltage interlock circuit. C. Low engine oil level. D. Faulty air conditioning compressor. None 4. ASE L3: Hybrid Supporting Systems During the inspection of a hybrid vehicle's power management system, which condition would necessitate further investigation of the DC/DC converter function? A. The 12-volt battery is consistently overcharged. B. There is a slight delay in the stop-start system engagement. C. The high-voltage battery shows a normal charge-discharge cycle. D. The vehicle experiences no issues with accessory power. None 5. ASE L3: Hybrid Supporting Systems What is a common symptom indicating a malfunction in the hybrid vehicle's power management control system? A. The anti-lock braking system (ABS) warning light illuminates intermittently. B. The vehicle exhibits uneven tire wear. C. The charge/discharge indicator for the high-voltage battery fluctuates erratically. D. The high-voltage service disconnect shows signs of arcing. None 6. ASE L3: Hybrid Supporting Systems What is a likely cause of an intermittent high-voltage system shutdown in a hybrid vehicle when there are no diagnostic trouble codes present? A. A marginally functioning 12-volt battery. B. A loose high-voltage battery module connection. C. A malfunctioning electric air conditioning compressor. D. Faulty wheel speed sensors. None 7. ASE L3: Hybrid Supporting Systems What could cause the electric air conditioning compressor in a hybrid vehicle to operate below expected efficiency levels? A. A degraded cabin air filter. B. An overfilled refrigerant system. C. A faulty electric water pump. D. A discharged 12-volt auxiliary battery. None 8. ASE L3: Hybrid Supporting Systems When diagnosing an issue with the electric power steering on a hybrid vehicle, which of the following data parameters should be monitored first? A. Steering angle sensor output. B. Battery state of charge (SO C. C) Tire pressure readings. D. Ambient temperature sensor readings. None 9. ASE L3: Hybrid Supporting Systems A hybrid vehicle displays a warning light for the lane-keeping assist system. A technician should first check: A. Wheel alignment specifications. B. The condition of the windshield where the camera is mounted. C. Battery state of charge (SOC) level. D. Firmware version of the lane-keeping assist system. None 10. ASE L3: Hybrid Supporting Systems What is a common symptom indicating a malfunction in the hybrid vehicle's power management control system? A. The anti-lock braking system (ABS) warning light illuminates intermittently. B. The vehicle exhibits uneven tire wear. C. The charge/discharge indicator for the high-voltage battery fluctuates erratically. D. The high-voltage service disconnect shows signs of arcing. None 1 out of 10 Time is Up! Time's up
