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Course/Program Inventory

AUT 5021 - Auto Transmission & Transaxles


Clock Hours: 70

Delivery Mode
on-ground

Industry Certifications ASE Automatic Transmission certification

Course Description:
This course teaches transmission electrical and hydraulic theory, before students are trained to diagnose the various causes of transmission concerns. Extra emphasis is placed on the computerized controls of the power-train system. The course prepares students for the Automatic Transmission/Transaxle Technician certification test administered by ASE.

Student Learning Outcomes:
Students will be able to demonstrate knowledge of:

A. General

  1. Research vehicle service information including fluid type, vehicle service history, service precautions, and technical service bulletins, and recalls including vehicles equipped with driver assistance systems (ADAS).
  2. Identify automatic transmission and transaxle components and configurations.
  3. Retrieve and record DTC’s, OBD monitor status, and freeze frame data; clear codes and data when directed.
  4. Inspect transmission fluid condition; check fluid level; inspect for leaks on transmission and transaxle equipped with a dipstick.
  5. Inspect transmission fluid condition; check fluid level; inspect for leaks on transmission and transaxle not equipped with a dipstick.
  6. Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles,
  7. Diagnose pressure concerns in a transmission using hydraulic principles (Pascal’s Law).
  8. Identify and interpret transmission/transaxle concerns, differentiate between engine performance and transmission/transaxle concerns; determine needed action.
  9. Diagnose fluid loss and condition concerns; determine needed action.
  10. Perform stall test; determine needed action.
  11. Perform lock-up converter system test; determine needed action.
  12. Perform pressure tests on transmission/transaxle equipped with electronic pressure control; determine needed action.
  13. Diagnose electronic transmission/transaxle control systems using appropriate test equipment and service condition.

B. In-Vehicle Transmission/Transaxle

  1. Inspect, adjust, and/or replace external manual valve shift linkage, transmission range sensor/switch, and/or park/neutral position switch.
  2. Drain and replace fluid and filter(s); use proper fluid type per manufacturer specification.
  3. Perform relearn procedures.
  4. Inspect, replace and/or align powertrain mounts.
  5. Inspect for leakage; replace external seals, gaskets, and bushings.
  6. Inspect, test, adjust, repair, and/or replace electrical/electronic components and circuits.

C. Off-Vehicle Transmission and Transaxle

  1. Describe the operational characteristics of a continuously variable transmission (CVT).
  2. Describe the operational characteristics of a hybrid vehicle drive train.
  3. Remove and reinstall transmission/transaxle and torque converter; inspect engine core plugs, rear crankshaft seal, dowel pins, dowel pin holes, and mating surfaces.
  4. Inspect, leak test, flush, and/or replace transmission/transaxle oil cooler, lines, and fittings.
  5. Inspect convertor flex (drive) plate, converter attaching bolts, converter pilot, converter pump drive surfaces, converter play, and crankshaft pilot bore