Tasksheets
Completion requirements
ASE 2: AUTOMATIC TRANSMISSION AND TRANSAXLE
General | |
MAST2002 | Research vehicle service information such as fluid type, vehicle service history, service precautions, technical service bulletins, and recalls including vehicles equipped with advanced driver assistance systems (ADAS). |
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MAST2040 | Identify automatic transmission and transaxle components and configurations. |
MAST2041 | Retrieve and record DTCs, OBD monitor status, and freeze frame data; clear codes and data when directed. |
MAST2004 | Inspect transmission fluid condition |
MAST2005 | Inspect transmission fluid condition |
MAST2010 | Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles. |
MAST2012 | Diagnose pressure concerns in a transmission using hydraulic principles (Pascal's Law). |
MAST2001 | Identify and interpret transmission/transaxle concerns, differentiate between engine performance and transmission/transaxle concerns; determine needed action. |
MAST2003 | Diagnose fluid loss and condition concerns |
MAST2008 | Perform stall test |
MAST2009 | Perform lock-up converter system tests |
MAST2006 | Perform pressure tests on transmissions/transaxles equipped with electronic pressure control |
MAST2011 | Diagnose electronic transmission/transaxle control systems using appropriate test equipment and service information. |
MAST2007 | Diagnose noise and vibration concerns |
In-Vehicle Transmission/Transaxle | |
MAST2013 | Inspect, adjust, and/or replace external manual valve shift linkage, transmission range sensor/switch, and/or park/neutral position switch. |
MAST2016 | Drain and replace fluid and filter(s) |
MAST2042 | Perform relearn procedures. |
MAST2017 | Inspect, replace/or and align powertrain mounts. |
MAST2014 | Inspect for leakage; replace external seals, gaskets, and bushings. |
MAST2015 | Inspect, test, adjust, repair, and/or replace electrical/electronic components and circuits. |
Off-Vehicle Transmission and Transaxle | |
MAST2021 | Describe the operational characteristics of a continuously variable transmission (CVT). |
MAST2022 | Describe the operational characteristics of a hybrid vehicle drive train. |
MAST2018 | Remove and reinstall transmission/transaxle and torque converter; inspect engine core plugs, rear crankshaft seal, dowel pins, dowel pin holes, and mounting surfaces. |
MAST2019 | Inspect, leak test, flush, and/or replace transmission/transaxle oil cooler, lines, and fittings. |
MAST2020 | Inspect converter flex (drive) plate, converter attaching bolts, converter pilot, converter pump drive surfaces, converter end play, and crankshaft pilot bore. |
MAST2023 | Disassemble, clean, and inspect transmission/transaxle. |
MAST2024 | Inspect, measure, clean, and replace valve body (includes surfaces, bores, springs, valves, switches, solenoids, sleeves, retainers, brackets, check valves/balls, screens, spacers, and gaskets). |
MAST2025 | Inspect servo and accumulator bores, pistons, seals, pins, springs, and retainers; determine needed action. |
MAST2026 | Assemble transmission/transaxle. |
MAST2027 | Inspect, measure, and reseal oil pump assembly and components. |
MAST2028 | Measure transmission/transaxle end play and/or preload |
MAST2029 | Inspect, measure, and/or replace thrust washers and bearings. |
MAST2030 | Inspect oil delivery circuits, including seal rings, ring grooves, and sealing surface areas, feed pipes, orifices, and check valves/balls. |
MAST2031 | Inspect bushings |
MAST2032 | Inspect and measure planetary gear assembly components |
MAST2033 | Inspect case bores, passages, bushings, vents, and mating surfaces; determine needed action. |
MAST2034 | Diagnose and inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; determine needed action. |
MAST2035 | Inspect measure, repair, adjust or replace transaxle final drive components. |
MAST2036 | Inspect clutch drum, piston, check-balls, springs, retainers, seals, friction plates, pressure plates, and bands; determine needed action. |
MAST2037 | Measure clutch pack clearance |
MAST2038 | Air test operation of clutch and servo assemblies. |
MAST2039 | Inspect one-way clutches, races, rollers, sprags, springs, cages, retainers; determine needed action. |