Major Work Activity H – Diagnoses And Repairs Hybrid And Electric Vehicles (EV)
Task H-22 Diagnoses hybrid and electric vehicles (EV)
Task Descriptor
Automotive Service Technicians diagnose electric motors, inverters, converters, high-voltage batteries and associated support systems in hybrid and EV. Safety is of paramount importance due to the risk of electrocution when working with high voltages.
H-22.01 Implements specific safety protocols for hybrid and electric vehicles (EV)
Essential Skills
Thinking, Document Use, Reading
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Performance Criteria |
Evidence of Attainment |
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H-22.01.01P |
select and use PPE and safety equipment specific to hybrid and EV systems |
PPE and safety equipment specific to hybrid and EV systems is selected and used according to manufacturers’ information |
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H-22.01.02P |
select and use tools and equipment required to complete safety preparation |
tools and equipment required to complete safety preparation are selected and used according to manufacturers’ information |
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H-22.01.03P |
recognize safety hazards specific to working on hybrid vehicles and EVs |
safety hazards specific to working on hybrid vehicles and EVs are identified |
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H-22.01.04P |
ensure that safety protocols have been implemented |
safety protocols have been implemented according to manufacturers’ information |
Range of Variables
PPE and safety equipment specific to hybrid and EV systems includes: insulated gloves, pylons, high voltage specific tools, safety hook
safety hazards specific to working on hybrid vehicles and EVs include: electrocution, burns
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Knowledge |
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Learning Outcomes |
Learning Objectives |
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H-22.01.01L |
demonstrate knowledge of safety protocols for hybrid and EV systems |
identify safety protocols pertaining to hybrid and EV systems |
Range of Variables
safety protocols for hybrid and EV systems include: safe work procedures for high voltage, manufacturers’ safety procedures
H-22.02 Diagnoses hybrid and electric vehicle (EV) systems
Essential Skills
Thinking, Reading, Digital Technology
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Performance Criteria |
Evidence of Attainment |
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H-22.02.01P |
verify concern |
concern is verified to determine diagnostic strategy |
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H-22.02.02P |
identify type of hybrid and EV system |
type of hybrid and EV system is identified |
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H-22.02.03P |
inspect hybrid and EV system components |
hybrid and EV system components are inspected for wear, damage and defects |
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H-22.02.04P |
select and use diagnostic tools and equipment |
diagnostic tools and equipment are selected and used according to manufacturers’ information |
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H-22.02.05P |
retrieve DTCs |
DTCs are retrieved |
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H-22.02.06P |
determine and perform tests |
tests are determined and performed to pinpoint failure |
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H-22.02.07P |
interpret viewed values and DTCs |
viewed values and DTCs are interpreted to determine condition of systems and components |
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H-22.02.08P |
interpret and analyze results of tests and inspections |
results of tests and inspections are interpreted and analyzed to determine required repair |
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H-22.02.09P |
isolate problem |
problem is isolated according to manufacturers’ information |
Range of Variables
hybrid and EV system includes: series, parallel, combination, plug-in, extended range
hybrid and EV system components include: modules, inverters, high voltage batteries, drive motors
diagnostic tools and equipment include: scan tools, specialized DVOMs, service information
tests include: active tests, voltage and amperage tests, resistance check, voltage isolation tests, live/dead/live test
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Knowledge |
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Learning Outcomes |
Learning Objectives |
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H-22.02.01L |
demonstrate knowledge of operations of hybrid and EV systems |
identify the function of hybrid and EV systems |
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H-22.02.02L |
demonstrate knowledge of diagnosing hybrid and EV systems |
identify methods for diagnosing hybrid and EV systems |
Task H-23 Repairs hybrid and electric vehicles (EV)
Task Descriptor
Automotive Service Technicians repair and service electric motors, inverters, converters, high-voltage batteries and associated support systems in hybrid and EV.
H-23.01 Repairs hybrid vehicle systems
Essential Skills
Thinking, Digital Technology, Reading
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Skills |
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Performance Criteria |
Evidence of Attainment |
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H-23.01.01P |
select and use tools and equipment |
tools and equipment are selected and used according to manufacturers’ information |
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H-23.01.02P |
deactivate electrical and engine operating system |
electrical and engine operating system are deactivated according to manufacturers’ information |
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H-23.01.03P |
remove and inspect hybrid system components |
hybrid system components are removed and inspected |
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H-23.01.04P |
select repair materials |
repair materials are selected according to repair requirements and manufacturers’ information |
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H-23.01.05P |
replace hybrid system components |
hybrid system components are replaced according to manufacturers’ information |
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H-23.01.06P |
verify repair |
repair is verified by system re-test and road test |
Range of Variables
tools and equipment include: PPE, safety devices, specialized DVOMs, scan tools, reprogramming equipment, hand tools
hybrid system components include: modules, inverters, high voltage batteries, drive motors
repair materials include: gaskets, sealants, lubricants
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Knowledge |
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Learning Outcomes |
Learning Objectives |
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H-23.01.01L |
demonstrates knowledge of repairing hybrid vehicle systems |
identify methods for repair of hybrid vehicle systems |
H-23.02 Repairs electric vehicle (EV) systems
Essential Skills
Thinking, Digital Technology, Reading
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PE |
NB |
QC |
ON |
MB |
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AB |
BC |
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YT |
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yes |
yes |
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yes |
NV |
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Skills |
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Performance Criteria |
Evidence of Attainment |
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H-23.02.01P |
select and use tools and equipment |
tools and equipment are selected and used according to manufacturers’ service information |
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H-23.02.02P |
deactivate high voltage electrical system |
high voltage electrical system is deactivated according to manufacturers’ service information |
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H-23.02.03P |
remove and inspect EV system components |
EV system components are removed and inspected |
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H-23.02.04P |
select repair materials |
repair materials are selected according to manufacturers’ service information |
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H-23.02.05P |
replace EV system components |
EV system components are replaced according to manufacturers’ service information |
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H-23.02.06P |
verify repair |
repair is verified by system re-test and road test |
Range of Variables
tools and equipment include: PPE, safety devices, specialized DVOMs, scan tools, reprogramming equipment, hand tools
EV system components include: modules, inverters, high-voltage batteries, drive motors
repair materials include: gaskets, sealants, lubricants
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Knowledge |
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Learning Outcomes |
Learning Objectives |
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H-23.02.01L |
demonstrates knowledge of repairing EV systems |
identify methods for repairing EV systems |
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