Major Work Activity D - Diagnoses and repairs driveline systems

Table of Contents

Task D-12 Diagnoses driveline systems

Task Descriptor

Driveline systems provide a means of transmitting rotational torque from the engines/motors to the drive wheels in complex and innovative methods. This includes CV axles, drive shafts, transmissions and transaxles, transfer cases, clutches, final drive and differential assemblies.

Automotive service technicians diagnose driveline systems according to manufacturers’ service information.

D-12.01 - Diagnoses drive shafts and axles

D-12.01 - Diagnoses drive shafts and axles
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-12.01.01P verify concern concern is verified to determine diagnostic strategy
D-12.01.02P perform road test road test is performed to identify drive shaft and axle concerns
D-12.01.03P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-12.01.04P identify type of drive shaft and axle system type of drive shaft and axle system is identified to determine operation
D-12.01.05P inspect vehicle’s drive shaft and axle components vehicle’s drive shaft and axle components are inspected according to manufacturers’ service information
D-12.01.06P perform functional tests functional tests are performed according to manufacturers’ service information
D-12.01.07P interpret and analyze results of functional tests and inspections results of functional tests and inspections are interpreted, analyzed and compared to manufacturers’ service information, and required repair is determined

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-12.01.01L demonstrate knowledge of drive shafts and axles, their components, characteristics, applications and operation identify types of drive shafts and their components, and describe their composition, characteristics and applications
identify types of axles and their components, and describe their characteristics and applications
describe operating principles of drive shafts and axles, and their components
describe axle disconnects, locking hubs and their purpose
describe importance of multiple piece drive shaft phasing, indexing and angles
identify types of lubricants, fasteners, gaskets, seals and sealants, and describe their applications
D-12.01.02L demonstrate knowledge of procedures used to diagnose drive shafts and axles and their components identify tools and equipment used to diagnose drive shafts and axles, and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to drive shafts and axles, and their components
describe procedures used to diagnose drive shafts and axles and their components

Range of Variables

D-12.02 - Diagnoses manual transmissions and transaxles

D-12.02 - Diagnoses manual transmissions and transaxles
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-12.02.01P verify concern concern is verified to determine diagnostic strategy
D-12.02.02P perform road test road test is performed to identify manual transmission and transaxle concerns
D-12.02.03P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-12.02.04P identify model of manual transmission and transaxle model of manual transmission and transaxle is identified
D-12.02.05P check manual transmission and transaxle fluid conditions manual transmission and transaxle fluid conditions are checked
D-12.02.06P inspect manual transmission and transaxle components and controls manual transmission and transaxle components and controls are inspected according to manufacturers’ service information
D-12.02.07P inspect and test electrical components electrical components are inspected and tested according to manufacturers’ service information
D-12.02.08P inspect engine and driveline mounts engine and driveline mounts are inspected for wear and damage
D-12.02.09P interpret and analyze results of tests and inspections results of tests and inspections are interpreted, analyzed and compared to manufacturers’ service information, and required repair is determined

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-12.02.01L demonstrate knowledge of manual transmissions and transaxles, their components, characteristics, applications and operation identify types of manual transmissions and transaxles, and their components, and describe their characteristics and applications
describe operating principles of manual transmissions and transaxles, and their components
explain manual transmissions and transaxles power flow
describe gear ratios, their purpose and calculation
identify types of lubricants, fasteners, gaskets, seals and sealants and describe their applications
identify types of engine and driveline mounts, their construction and application
D-12.02.02L demonstrate knowledge of procedures used to diagnose manual transmissions and transaxles and their components identify tools and equipment used to diagnose manual transmissions and transaxles and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to manual transmissions and transaxles and their components
describe procedures used to diagnose manual transmissions and transaxles and their components
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-12.03 - Diagnoses automatic transmissions and transaxles

D-12.03 - Diagnoses automatic transmissions and transaxles
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-12.03.01P verify concern concern is verified to determine diagnostic strategy
D-12.03.02P perform road test road test is performed to identify automatic transmission and transaxle concerns
D-12.03.03P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-12.03.04P identify model and type of automatic transmission and transaxle model and type of automatic transmission and transaxle is identified
D-12.03.05P check fluid level and condition, and visually inspect automatic transmission and transaxle fluid level and condition are checked, and assembly is inspected for leaks or damage
D-12.03.06P inspect automatic transmission and transaxle components and controls automatic transmission and transaxle components and controls are inspected according to manufacturers’ service information
D-12.03.07P perform functional tests functional tests are performed according to manufacturers’ service information
D-12.03.08P inspect and test electrical components electrical components are inspected and tested
D-12.03.09P inspect engine and driveline mounts engine and driveline mounts are inspected for wear and damage
D-12.03.10P record, interpret and analyze results of tests and inspections results of tests and inspections are recorded, interpreted and analyzed and compared to manufacturers’ service information and required repair is determined

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-12.03.01L demonstrate knowledge of automatic transmissions and transaxles, their components, characteristics, applications and operation identify types of automatic transmissions and transaxles, and their components, and describe their characteristics and applications
describe operating principles of automatic transmissions and transaxles, and their components
explain hydraulic principles related to automatic transmissions and transaxles
explain automatic transmission and transaxle power flow
interpret electric and hydraulic schematics
describe gear ratios, their purpose and calculation
identify types of lubricants, fasteners, tubing, hoses, gaskets, seals and sealants and describe their applications
identify warning indicators and describe their characteristics, applications and operation
D-12.03.02L demonstrate knowledge of procedures used to diagnose automatic transmissions and transaxles identify tools and equipment used to diagnose automatic transmissions and transaxles and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to automatic transmissions and transaxles and their components
describe procedures used to diagnose automatic transmissions and transaxles and their components
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-12.04 - Diagnoses clutches

D-12.04 - Diagnoses clutches
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-12.04.01P verify concern concern is verified to determine diagnostic strategy
D-12.04.02P perform road test road test is performed to identify clutch concerns
D-12.04.03P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-12.04.04P identify type of clutch control type of clutch control is identified
D-12.04.05P check fluid level and condition, and inspect for leaks fluid level and condition are checked, and assembly is inspected for leaks
D-12.04.06P inspect clutch components clutch components are inspected according to manufacturers’ service information
D-12.04.07P interpret and analyze results of tests and inspections results of tests and inspections are interpreted, analyzed and compared to manufacturers’ service information and required repair is determined

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
12.04.01L demonstrate knowledge of clutches, their components, characteristics, applications and operation identify types of clutches and their components, and describe their characteristics and applications
describe operating principles of clutches and their components
identify hydraulic and electric clutch actuating systems and their components, and describe their characteristics, applications and operating principles
identify types of fluids, fasteners, tubing, hoses and seals and describe their applications
describe clutch system power flow
identify related systems and describe their relationship to clutch systems
12.04.02L demonstrate knowledge of procedures used to diagnose clutches and their components identify tools and equipment used to diagnose clutches and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to clutches and their components
describe procedures used to diagnose clutches and their components
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-12.05 - Diagnoses transfer cases

D-12.05 - Diagnoses transfer cases
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-12.05.01P verify concern concern is verified to determine diagnostic strategy
D-12.05.02P perform road test road test is performed to identify transfer case concerns
D-12.05.03P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-12.05.04P identify model and type of transfer case model and type of transfer cases are identified
D-12.05.05P identify types of all-wheel drive (AWD) systems types of AWD systems are identified
D-12.05.06P check transfer case fluid conditions transfer case fluid conditions are checked
D-12.05.07P inspect transfer case, components and controls transfer case, components and controls are inspected according to manufacturers’ service information
D-12.05.08P inspect AWD components and controls AWD components and controls are inspected according to manufacturers’ service information
D-12.05.09P inspect and test electrical components electrical components are inspected and tested
D-12.05.10P perform functional tests functional tests are performed according to manufacturers’ service information
D-12.05.11P record, interpret and analyze results of tests and inspections results of tests and inspections are recorded, interpreted, analyzed and compared to manufacturers’ service information, and required repair is determined

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-12.05.01L demonstrate knowledge of transfer cases, their components, characteristics, applications and operation identify types of transfer cases and their components, and describe their characteristics and applications
describe operating principles of transfer cases and their components
identify types of AWD systems, their components and operation
identify related systems and describe their relationship to transfer cases
identify types of controls and electrical components and describe their operation
describe transfer case power flow
describe gear ratios, their purpose and calculations
identify types of lubricants, fasteners, gaskets, seals and sealants and describe their applications
D-12.05.02L demonstrate knowledge of procedures used to diagnose transfer cases and their components identify tools and equipment used to diagnose transfer cases and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to transfer cases and their components
describe procedures used to diagnose transfer cases and their components
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-12.06 - Diagnoses final drive assemblies

D-12.06 - Diagnoses final drive assemblies
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-12.06.01P verify concern concern is verified to determine diagnostic strategy
D-12.06.02P perform road test road test is performed to identify final drive concerns
D-12.06.03P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-12.06.04P identify model and type of final drive assembly model and type of final drive assembly is identified
D-12.06.05P check final drive assembly fluid conditions final drive assembly fluid conditions  are checked
D-12.06.06P inspect final drive assembly components and controls final drive assembly components and controls are inspected according to manufacturers’ service information
D-12.06.07P perform functional tests functional tests are performed according to manufacturers’ service information
D-12.06.08P record, interpret and analyze results of tests and inspections results of tests and inspections are recorded, interpreted, analyzed and compared to manufacturers’ service information and required repair is determined

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-12.06.01L demonstrate knowledge of final drive assemblies, their components, characteristics, applications and operation identify types of final drive assemblies and their components, and describe their characteristics and applications
describe operating principles of final drive assemblies and their components
identify related systems and describe their relationship to final drive assembly
describe final drive assembly power flow
D-12.06.02L demonstrate knowledge of procedures used to diagnose final drive assemblies and their components identify tools and equipment used to diagnose final drive assemblies and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to final drive assemblies and their components
describe procedures used to diagnose final drive assemblies and their components
identify materials that can be reconditioned, reused or recycled

Range of Variables

Task D-13 Repairs driveline systems

Task Descriptor

Driveline systems provide a means of transmitting rotational torque from the engine/motors to the drive wheels in complex and innovative methods. This includes CV axles, drive shafts, transmissions and transaxles, transfer cases, clutches, final drive and differential assemblies.

Automotive service technician repair and maintain driveline systems according to manufacturers’ service information.

D-13.01 - Repairs drive shafts and axles

D-13.01 - Repairs drive shafts and axles
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.01.01P identify type of drive shaft and axle system type of drive shaft and axle system is identified
D-13.01.02P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-13.01.03P select repair materials repair materials are selected according to repair requirements and manufacturers’ service information
D-13.01.04P remove, replace, recondition or service drive shaft components drive shaft components are removed, replaced, reconditioned or serviced according to manufacturers’ service information
D-13.01.05P perform maintenance procedures maintenance procedures are performed according to manufacturers’ service information
D-13.01.06P verify repair repair is verified by system re-test and road test

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.01.01L demonstrate knowledge of drive shaft and axle systems, their components, characteristics, applications and operation identify types of drive shaft and axle systems, and their components, and describe their characteristics and applications
describe operating principles of drive shaft and axle systems, and their components
identify types of axles and their components, and describe their characteristics and applications
describe axle disconnects, locking hubs and their purpose
describe importance of multiple piece drive shaft phasing, indexing and driveline angles
identify types of lubricants, fasteners, gaskets, seals and sealants and describe their applications
D-13.01.02L demonstrate knowledge of procedures used to repair drive shafts and axles, and their components identify tools and equipment used to repair drive shafts and axles and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to drive shafts and axles, and their components
describe procedures used to adjust, repair and replace drive shafts and axles, and their components
describe maintenance procedures
describe procedures used to verify repair
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-13.02 - Repairs manual transmissions and transaxles

D-13.02 - Repairs manual transmissions and transaxles
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.02.01P determine model of manual transmission and transaxles model of manual transmission and transaxles is determined
D-13.02.02P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-13.02.03P select repair materials repair materials are selected according to repair requirements and manufacturers’ service information
D-13.02.04P remove, replace, recondition or service components and controls components and controls are removed, replaced, reconditioned or serviced according to manufacturers’ service information
D-13.02.05P remove and replace mounts mounts are removed and replaced according to manufacturers’ service information
D-13.02.06P perform maintenance procedures maintenance procedures are performed according to manufacturers’ service information
D-13.02.07P verify repair repair is verified by system re-test and road test

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.02.01L demonstrate knowledge of manual transmissions and transaxles, their components, characteristics, applications and operation identify types of manual transmissions and transaxles and their components, and describe their characteristics and applications
describe operating principles of manual transmissions and transaxles and their components
describe manual transmission and transaxle power flow
identify types of lubricants, fasteners, gaskets, seals and sealants and describe their applications
D-13.02.02L demonstrate knowledge of procedures used to repair manual transmissions and transaxles, and their components identify tools and equipment used to repair manual transmissions and transaxles, and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to manual transmissions and transaxles, and their components
describe procedures used to remove and reinstall manual transmissions and transaxles
describe procedures used to adjust, repair and replace manual transmissions and transaxles, and their components
describe procedures used to replace engine and driveline mounts
describe maintenance procedures
describe procedures used to verify repair
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-13.03 - Repairs automatic transmissions and transaxles

D-13.03 - Repairs automatic transmissions and transaxles
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.03.01P identify model and type of automatic transmission and transaxle model and type of automatic transmission and transaxle are identified according to manufacturers’ service information
D-13.03.02P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-13.03.03P select repair materials repair materials are selected according to repair requirements and manufacturers’ service information
D-13.03.04P remove, replace, recondition or service components and controls components and controls are removed, replaced, reconditioned or serviced according to manufacturers’ service information
D-13.03.05P perform maintenance procedures maintenance procedures are performed according to manufacturers’ service information
D-13.03.06P verify repair repair is verified by system re-test and road test

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.03.01L demonstrate knowledge of automatic transmissions and transaxles, their components, characteristics, applications and operation identify types of automatic transmissions and transaxles and their components, and describe their characteristics and applications
describe operating principles of automatic transmissions and transaxles and their components
explain hydraulic principles related to automatic transmissions and transaxles
describe automatic transmission and transaxle power flow
interpret electric and hydraulic schematics
identify types of lubricants, fasteners, tubing, hoses, gaskets, seals and sealants, and describe their applications
D-13.03.02L demonstrate knowledge of procedures used to repair automatic transmissions and transaxles, and their components identify tools and equipment used to repair automatic transmissions and transaxles, and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to automatic transmissions and transaxles, and their components
describe procedures used to remove and reinstall automatic transmissions and transaxles
describe procedures used to adjust, repair and replace automatic transmissions and transaxles, and their components
describe procedures used to replace engine and driveline mounts
describe maintenance procedures
describe procedures used to verify repair
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-13.04 - Repairs clutches

D-13.04 - Repairs clutches
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.04.01P determine type of clutch type of clutch is determined
D-13.04.02P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-13.04.03P select repair materials repair materials are selected according to repair requirements and manufacturers’ service information
D-13.04.04P remove, replace, recondition or service components components are removed, replaced, reconditioned or serviced according to manufacturers’ service information
D-13.04.05P perform maintenance procedures maintenance procedures are performed according to manufacturers’ service information
D-13.04.06P verify repair repair is verified by system re-test and road test

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.04.01L demonstrate knowledge of clutches, their components, characteristics, applications and operation identify types of clutches and their components, and describe their characteristics and applications
describe operating principles of clutches and their components
identify types of flywheels and their components, and describe their characteristics, applications and operation
identify clutch actuating systems and their components, and describe their characteristics, applications and operation
identify types of fluids, fasteners, tubing, hoses and seals, and describe their applications
D-13.04.02L demonstrate knowledge of procedures used to repair clutches and their components identify tools and equipment used to repair clutches and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to clutches and their components
describe procedures used to remove and reinstall clutches
describe procedures used to adjust, repair and replace clutches and flywheels, and their components
describe maintenance procedures
describe procedures used to verify repair
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-13.05 - Repairs transfer cases

D-13.05 - Repairs transfer cases
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.05.01P identify model and type of transfer case model and type of transfer case is identified
D-13.05.02P identify type of AWD system type of AWD system is identified
D-13.05.03P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-13.05.04P select repair materials repair materials are selected according to repair requirements and manufacturers’ service information
D-13.05.05P remove, replace, recondition or service components and controls components and controls are removed, replaced, reconditioned or serviced according to manufacturers’ service information
D-13.05.06P perform maintenance procedures maintenance procedures are performed according to manufacturers’ service information
D-13.05.07P verify repair repair is verified by system re-test and road test

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.05.01L demonstrate knowledge of transfer cases, their components, characteristics, applications and operation identify types of transfer cases and their components, and describe their characteristics and applications
describe operating principles of transfer cases and their components
identify types of AWD systems, their components and operation
identify related systems and describe their relationship to transfer cases
identify types of controls and electrical components, and describe their characteristics and applications
describe transfer case power flow
identify types of lubricants, fasteners, gaskets, seals and sealants, and describe their applications
D-13.05.02L demonstrate knowledge of procedures used to repair transfer cases and their components identify tools and equipment used to repair transfer cases and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to transfer cases and their components
describe procedures used to remove and reinstall transfer cases
describe procedures used to adjust, repair and replace transfer cases and their components
describe maintenance procedures
describe procedures used to verify repair
identify materials that can be reconditioned, reused or recycled

Range of Variables

D-13.06 - Repairs final drive assemblies

D-13.06 - Repairs final drive assemblies
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes ND yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.06.01P identify model and type of final drive assemblies model and type of final drive assemblies are identified
D-13.06.02P select and use tools and equipment tools and equipment are selected and used according to task and manufacturers’ service information
D-13.06.03P select repair materials repair materials are selected according to repair requirements and manufacturers’ service information
D-13.06.04P remove, replace, recondition or service components and controls components and controls are removed, replaced, reconditioned or serviced according to manufacturers’ service information
D-13.06.05P perform maintenance procedures maintenance procedures are performed according to manufacturers’ service information
D-13.06.06P verify repair repair is verified by system re-test and road test

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D13.06.01L demonstrate knowledge of final drive assemblies, their components, characteristics, applications and operation identify types of final drive assemblies and their components, and describe their characteristics and applications
describe operating principles of final drive assemblies and their components
describe final drive assembly power flow
D13.06.02L demonstrate knowledge of procedures to repair final drive assemblies and their components identify tools and equipment used to repair final drive assemblies and their components, and describe their characteristics, applications and procedures for use
identify hazards and describe safe work practices pertaining to final drive assemblies and their components
describe procedures used to repair final drive assemblies and their components
describe procedures used to remove and reinstall final drive assemblies
describe procedures used to adjust, repair and replace final drive assemblies and their components
describe maintenance procedures
describe procedures used to verify repair
identify materials that can be reconditioned, reused or recycled

Range of Variables