Aug 17, 2025  
2025 - 2026 Catalog 
    
2025 - 2026 Catalog
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AUTO 240 - Hybrid/EV Safety and Battery Energy Storage Systems

Credits: 3
Instructional Contact Hours: 3


Practices the diagnostic procedures and repair of hybrid/EV safety and battery energy storage systems on today's high-tech vehicles. Practices ASE Education Foundation Tasks related to High Voltage/Electric Vehicle systems.

Prerequisite(s): ASEP 100  or AUTO 100 , ASEP 106  or AUTO 106 , and AUTO 236  with a minimum grade of “C” (2.0) or ASE (Automotive Service Excellence) A6 Certification as verified by instructor or program coordinator.

 
Corequisite(s): None
Lecture Hours: 15 Lab Hours: 30
Meets MTA Requirement: None
Pass/NoCredit: No

Outcomes and Objectives  

1.Diagnose and complete ASE Education Foundation tasks as listed below.

A. Safety Related Tasks:

  1. Perform high voltage disconnect procedure; reconnect/enable high voltage system.
  2. Select, test, and use proper safety gloves.
  3. Select, qualify, and use proper electrical testing equipment and leads.
  4. Demonstrate knowledge of the use of a live-dead-live/zero potential test to verify isolation of the high-voltage battery/energy storage system.
  5. Identify potential safety and materials handling concerns associated with high-voltage battery/energy storage systems.
  6. Retrieve and diagnose DTCs; determine needed repairs.
  7. Diagnose problems caused by damaged or failed harnesses, connectors, terminals, and fuses.
  8. Demonstrate knowledge of hazards related to high voltage systems/electric vehicles, including electrocution, fire, explosion, arc flash, gases and fumes, hazardous chemicals, and EMF, and how to properly respond to emergency situations.
  9. Demonstrate knowledge of high voltage system and component coloring, warning labels, lights, signage, and lock-out/tag-out procedures.
  10. Demonstrate ability to identify which components and circuits contain high voltage.
  11.  Demonstrate knowledge of steps needed to assess possible hazards prior to servicing a high voltage/electric vehicle, including awareness of automatic systems that may operate while the key switch/ignition is off.
  12. Understand limitations on which systems, components, and circuits of a high voltage/electric vehicle a technician is capable of safely servicing based on their level of training and qualifications.
  13. Demonstrate knowledge of high voltage/electric vehicle intake process, inspection, handling, and in-process monitoring for all vehicles, including damaged/compromised vehicles.

B. Battery Energy Storage System Related Tasks:

  1. Diagnose high voltage (HV) battery pack malfunctions.
  2. Remove and install high voltage battery pack.
  3. Test, diagnose and repair high voltage leaks/loss of isolation.
  4. Test, diagnose and repair high voltage battery pack heating and cooling systems.
  5. Test, diagnose, repair or replace high voltage battery pack internal components.
  6. Test and diagnose charging problems when using electric vehicle supply equipment (EVSE).



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