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NATEF Task Videos |
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This section contains 2013 NATEF Task Videos in all ASE Areas. |
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Quick Links - Click on an ASE photo below to jump to it's content |
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(A1) Engine Repair |
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(A2) Automatic Transmission |
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(A3) Manual Drive Train Axles |
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(A4) Suspension and Steering |
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(A5) Brakes |
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(A6) Electrical / Electronic Systems |
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(A7) Heating and Air Conditioning |
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(A8) Engine Performance |
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MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
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A.
General: Engine Diagnosis; Removal and Reinstallation (R & R)
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. |
P-1 |
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✓ |
✓ |
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2. |
Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins. |
P-1 |
✓ |
✓ |
✓ |
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3. |
Verify operation of the instrument panel engine warning indicators. |
P-1 |
✓ |
✓ |
✓ |
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4. |
Inspect engine assembly for fuel, oil, coolant, and other leaks; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
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5. |
Install engine covers using gaskets, seals, and sealers as required. |
P-1 |
✓ |
✓ |
✓ |
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6. |
Remove and replace timing belt; verify correct camshaft timing. |
P-1 |
✓ |
✓ |
✓ |
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7. |
Perform common fastener and thread repair, to include: remove broken bolt, restore internal and external threads, and repair internal threads with thread insert. |
P-1 |
✓ |
✓ |
✓ |
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8. |
Inspect, remove and replace engine mounts. |
P-2 |
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✓ |
✓ |
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9. |
Identify hybrid vehicle internal combustion engine service precautions. |
P-3 |
✓ |
✓ |
✓ |
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10. |
Remove and reinstall engine in an OBDII or newer vehicle; reconnect all attaching components and restore the vehicle to running condition. |
P-3 |
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✓ |
✓ |
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B.
Cylinder Head and Valve Train Diagnosis and Repair
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Remove cylinder head; inspect gasket condition; install cylinder head and gasket; tighten according to manufacturer's specifications and procedures. |
P-1 |
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✓ |
✓ |
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2. |
Clean and visually inspect a cylinder head for cracks; check gasket surface areas for warpage and surface finish; check passage condition. |
P-1 |
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✓ |
✓ |
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3. |
Inspect pushrods, rocker arms, rocker arm pivots and shafts for wear, bending, cracks, looseness, and blocked oil passages (orifices); determine necessary action. |
P-2 |
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✓ |
✓ |
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4. |
Adjust valves (mechanical or hydraulic lifters). |
P-1 |
✓ |
✓ |
✓ |
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5. |
Inspect and replace camshaft and drive belt/chain; includes checking drive gear wear and backlash, end play, sprocket and chain wear, overhead cam drive sprocket(s), drive belt(s), belt tension, tensioners, camshaft reluctor ring/tone-wheel, and valve timing components; verify correct camshaft timing. |
P-1 |
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✓ |
✓ |
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6. |
Establish camshaft position sensor indexing. |
P-1 |
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✓ |
✓ |
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7. |
Inspect valve springs for squareness and free height comparison; determine necessary action. |
P-3 |
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✓ |
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8. |
Replace valve stem seals on an assembled engine; inspect valve spring retainers, locks/keepers, and valve lock/keeper grooves; determine necessary action. |
P-3 |
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✓ |
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9. |
Inspect valve guides for wear; check valve stem-to-guide clearance; determine necessary action. |
P-3 |
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✓ |
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10. |
Inspect valves and valve seats; determine necessary action. |
P-3 |
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✓ |
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11. |
Check valve spring assembled height and valve stem height; determine necessary action. |
P-3 |
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✓ |
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12. |
Inspect valve lifters; determine necessary action. |
P-2 |
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✓ |
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13. |
Inspect and/or measure camshaft for runout, journal wear and lobe wear. |
P-2 |
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✓ |
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14. |
Inspect camshaft bearing surface for wear, damage, out-of-round, and alignment; determine necessary action. |
P-3 |
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✓ |
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C.
Engine Block Assembly Diagnosis and Repair |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Remove, inspect, or replace crankshaft vibration damper (harmonic balancer). |
P-2 |
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✓ |
✓ |
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2. |
Disassemble engine block; clean and prepare components for inspection and reassembly. |
P-1 |
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✓ |
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3. |
Inspect engine block for visible cracks, passage condition, core and gallery plug condition, and surface warpage; determine necessary action. |
P-2 |
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✓ |
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4. |
Inspect and measure cylinder walls/sleeves for damage, wear, and ridges; determine necessary action. |
P-2 |
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✓ |
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5. |
Deglaze and clean cylinder walls. |
P-2 |
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✓ |
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6. |
Inspect and measure camshaft bearings for wear, damage, out-of-round, and alignment; determine necessary action. |
P-3 |
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✓ |
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7. |
Inspect crankshaft for straightness, journal damage, keyway damage, thrust flange and sealing surface condition, and visual surface cracks;
check oil passage condition; measure end play and journal wear; check crankshaft position sensor reluctor ring (where applicable); determine necessary action. |
P-1 |
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✓ |
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8. |
Inspect main and connecting rod bearings for damage and wear; determine necessary action. |
P-2 |
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✓ |
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9. |
Identify piston and bearing wear patterns that indicate connecting rod alignment and main bearing bore problems; determine necessary action. |
P-3 |
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✓ |
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10. |
Inspect and measure piston skirts and ring lands; determine necessary action. |
P-2 |
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✓ |
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11. |
Determine piston-to-bore clearance. |
P-2 |
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✓ |
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12. |
Inspect, measure, and install piston rings. |
P-2 |
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✓ |
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13. |
Inspect auxiliary shaft(s) (balance, intermediate, idler, counterbalance or silencer); inspect shaft(s) and support bearings for damage and wear; determine necessary action; reinstall and time. |
P-2 |
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✓ |
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14. |
Assemble engine block. |
P-1 |
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✓ |
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D.
Lubrication and Cooling Systems Diagnosis and Repair |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Perform cooling system pressure and dye tests to identify leaks; check coolant condition and level; inspect and test radiator, pressure cap, coolant recovery tank, and heater core; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
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2. |
Identify causes of engine overheating. |
P-1 |
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✓ |
✓ |
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3. |
Inspect, replace, and adjust drive belts, tensioners, and pulleys; check pulley and belt alignment. |
P-1 |
✓ |
✓ |
✓ |
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4. |
Inspect and test coolant; drain and recover coolant; flush and refill cooling system with recommended coolant; bleed air as required. |
P-1 |
✓ |
✓ |
✓ |
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5. |
Inspect, remove, and replace water pumps. |
P-2 |
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✓ |
✓ |
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6. |
Remove and replace radiator. |
P-2 |
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✓ |
✓ |
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7. |
Remove, inspect, and replace thermostat and gasket/seal. |
P-1 |
✓ |
✓ |
✓ |
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8. |
Inspect and test fan(s) (electrical or mechanical), fan clutch, fan shroud, and air dams. |
P-1 |
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✓ |
✓ |
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9. |
Perform oil pressure tests; determine necessary action. |
P-1 |
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✓ |
✓ |
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10. |
Perform engine oil and filter change. |
P-1 |
✓ |
✓ |
✓ |
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11. |
Inspect auxiliary coolers; determine necessary action. |
P-3 |
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✓ |
✓ |
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12. |
Inspect, test, and replace oil temperature and pressure switches and sensors. |
P-2 |
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✓ |
✓ |
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13. |
Inspect oil pump gears or rotors, housing, pressure relief devices, and pump drive; perform necessary action. |
P-2 |
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✓ |
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MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
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A.
Transmission and Transaxle Diagnosis
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Identify
and interpret transmission/transaxle concern, differentiate between engine performance and transmission/transaxle concerns; determine necessary action. |
P-1 |
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✓ |
✓ |
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2. |
Research applicable vehicle and service information, fluid type, vehicle service history, service precautions, and technical service bulletins. |
P-1 |
✓ |
✓ |
✓ |
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3. |
Diagnose fluid loss and condition concerns; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
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4. |
Check fluid level in a transmission or a transaxle equipped with a dip-stick. |
P-1 |
✓ |
✓ |
✓ |
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5. |
Check fluid level in a transmission or a transaxle equipped without a dip-stick. |
P-1 |
✓ |
✓ |
✓ |
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6. |
Perform pressure tests (including transmissions/transaxles equipped with electronic pressure control); determine necessary action. |
P-1 |
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✓ |
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7. |
Diagnose noise and vibration concerns; determine necessary action. |
P-2 |
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✓ |
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8. |
Perform stall test; determine necessary action. |
P-3 |
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✓ |
✓ |
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9. |
Perform lock-up converter system tests; determine necessary action. |
P-3 |
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✓ |
✓ |
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10. |
Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles. |
P-1 |
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✓ |
✓ |
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11. |
Diagnose electronic transmission/transaxle control systems using appropriate test
equipment and service information. |
P-1 |
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✓ |
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12. |
Diagnose pressure concerns in a transmission using hydraulic principles (Pascal’s Law). |
P-2 |
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✓ |
✓ |
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B.
In-Vehicle Transmission/Transaxle Maintenance and Repair
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect, adjust, and replace external manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch. |
P-2 |
✓ |
✓ |
✓ |
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2. |
Inspect for leakage; replace external seals, gaskets, and bushings. |
P-2 |
✓ |
✓ |
✓ |
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3. |
Inspect, test, adjust, repair, or replace electrical/electronic components and circuits including computers, solenoids, sensors, relays, terminals, connectors, switches, and harnesses. |
P-1 |
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✓ |
✓ |
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4. |
Drain and replace fluid and filter(s). |
P-1 |
✓ |
✓ |
✓ |
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5. |
Inspect, replace and align powertrain mounts. |
P-2 |
✓ |
✓ |
✓ |
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C.
Off-Vehicle Transmission and Repair |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Remove and reinstall transmission/transaxle and torque converter; inspect engine core plugs, rear crankshaft seal, dowel pins, dowel pin holes, and mating surfaces. |
P-1 |
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✓ |
✓ |
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2. |
Describe the operational characteristics of an electronically-controlled manual transmission/transaxle. |
P-1 |
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✓ |
✓ |
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3. |
Diagnose noise concerns through the application of transmission/transaxle powerflow principles. |
P-2 |
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✓ |
✓ |
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4. |
Diagnose hard shifting and jumping out of gear concerns; determine necessary action. |
P-3 |
✓ |
✓ |
✓ |
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5. |
Diagnose transaxle final drive assembly noise and vibration concerns; determine necessary action. |
P-3 |
✓ |
✓ |
✓ |
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6. |
Disassemble, inspect clean, and reassemble internal transmission/transaxle components. |
P-2 |
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✓ |
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7. |
Inspect, measure, clean, and replace valve body (includes surfaces, bores, springs, valves, sleeves, retainers, brackets, check valves/balls, screens, spacers, and gaskets). |
P-2 |
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✓ |
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8. |
Inspect servo and accumulator bores, pistons, seals, pins, springs, and retainers; determine necessary action. |
P-2 |
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✓ |
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9. |
Assemble transmission/transaxle. |
P-2 |
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✓ |
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10. |
Inspect, measure, and reseal oil pump assembly and components. |
P-2 |
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✓ |
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11. |
Measure transmission/transaxle end play or preload; determine necessary action. |
P-1 |
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✓ |
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12. |
Inspect, measure, and replace thrust washers and bearings. |
P-2 |
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✓ |
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13. |
Inspect oil delivery circuits, including seal rings, ring grooves, and sealing surface areas, feed pipes, orifices, and check valves/balls. |
P-2 |
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✓ |
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14. |
Inspect bushings; determine necessary action. |
P-2 |
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✓ |
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15. |
Inspect and measure planetary gear assembly components; determine necessary action. |
P-2 |
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✓ |
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16. |
Inspect case bores, passages, bushings, vents, and mating surfaces; determine necessary action. |
P-2 |
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✓ |
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17. |
Diagnose and inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform necessary action. |
P-2 |
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✓ |
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18. |
Inspect measure, repair, adjust or replace transaxle final drive
components. |
P-2 |
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✓ |
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19. |
Inspect clutch drum, piston, check-balls, springs, retainers, seals, and friction and pressure plates, bands and drums; determine necessary action. |
P-2 |
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✓ |
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20. |
Measure clutch pack clearance; determine necessary action. |
P-1 |
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✓ |
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21. |
Air test operation of clutch and servo assemblies. |
P-1 |
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✓ |
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22. |
Inspect roller and sprag clutch, races, rollers, sprags, springs, cages, retainers; determine necessary action. |
P-2 |
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✓ |
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MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
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A.
General: Drive Train Diagnosis
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Identify and interpret drive train concerns; determine necessary action. |
P-1 |
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✓ |
✓ |
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2. |
Research applicable vehicle and service information, fluid type, vehicle service history, service precautions, and technical service bulletins. |
P-1 |
✓ |
✓ |
✓ |
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3. |
Check fluid condition; check for leaks; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
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4. |
Drain and refill manual transmission/transaxle and final drive unit. |
P-1 |
✓ |
✓ |
✓ |
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B.
Clutch Diagnosis and Repair
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose clutch noise, binding, slippage, pulsation, and chatter; determine necessary action. |
P-1 |
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✓ |
✓ |
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2. |
Inspect clutch pedal linkage, cables, automatic adjuster mechanisms, brackets, bushings, pivots, and springs; perform necessary action. |
P-1 |
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✓ |
✓ |
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3. |
Inspect and replace clutch pressure plate assembly, clutch disc, release (throw-out) bearing and linkage, and pilot bearing/bushing (as applicable). |
P-1 |
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✓ |
✓ |
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4. |
Bleed clutch hydraulic system. |
P-1 |
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✓ |
✓ |
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5. |
Check and adjust clutch master cylinder fluid level; check for leaks. |
P-1 |
✓ |
✓ |
✓ |
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6. |
Inspect flywheel and ring gear for wear and cracks; determine necessary action. |
P-1 |
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✓ |
✓ |
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7. |
Measure flywheel runout and crankshaft end play; determine necessary action. |
P-2 |
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✓ |
✓ |
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C.
Transmission/Transaxle Diagnosis and Repair |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect, adjust, and reinstall shift linkages, brackets, bushings, cables, pivots, and levers. |
P-2 |
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✓ |
✓ |
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2. |
Describe the operational characteristics of an electronically-controlled manual transmission/transaxle. |
P-3 |
✓ |
✓ |
✓ |
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3. |
Diagnose noise concerns through the application of transmission/transaxle powerflow principles. |
P-2 |
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✓ |
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4. |
Diagnose hard shifting and jumping out of gear concerns; determine necessary action. |
P-2 |
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✓ |
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5. |
Diagnose transaxle final drive assembly noise and vibration concerns; determine necessary action. |
P-3 |
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✓ |
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6. |
Disassemble, inspect clean, and reassemble internal transmission/transaxle components. |
P-3 |
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✓ |
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D. Drive Shaft and Half Shaft, Universal and Constant-Velocity (CV) Joint Diagnosis and Repair |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose constant-velocity (CV) joint noise and vibration concerns; determine necessary action. |
P-1 |
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✓ |
✓ |
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2. |
Diagnose universal joint noise and vibration concerns; perform necessary action. |
P-2 |
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✓ |
✓ |
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3. |
Inspect, remove, and replace front wheel drive (FWD) bearings, hubs, and seals. |
P-1 |
✓
(P-2) |
✓ |
✓ |
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4. |
Inspect, service, and replace shafts, yokes, boots, and universal/CV joints. |
P-1 |
✓
(P-2) |
✓ |
✓ |
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5. |
Check shaft balance and phasing; measure shaft runout; measure and adjust driveline angles. |
P-2 |
|
✓ |
✓ |
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E. Drive Axle Diagnosis and Repair
E.1 Ring and Pinion Gears and Differential Case Assembly |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Clean and inspect differential housing; check for leaks; inspect housing vent. |
P-2 |
✓ |
✓ |
✓ |
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2. |
Check and adjust differential housing fluid level. |
P-1 |
✓ |
✓ |
✓ |
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3. |
Drain and refill differential housing. |
P-1 |
✓ |
✓ |
✓ |
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4. |
Diagnose noise and vibration concerns; determine necessary action. |
P-2 |
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✓ |
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5. |
Iinspect and replace companion flange and pinion seal; measure companion flange runout. |
P-2 |
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✓ |
✓ |
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6. |
Inspect ring gear and measure runout; determine necessary action. |
P-3 |
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✓ |
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7. |
Remove, inspect, and reinstall drive pinion and ring gear, spacers, sleeves, and bearings. |
P-3 |
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✓ |
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8. |
Measure and adjust drive pinion depth. |
P-3 |
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✓ |
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9. |
Measure and adjust drive pinion bearing preload. |
P-3 |
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✓ |
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10. |
Measure and adjust side bearing preload and ring and pinion gear total backlash and backlash variation on a differential carrier assembly (threaded cup or shim types). |
P-3 |
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✓ |
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11. |
Check ring and pinion tooth contact patterns; perform necessary action. |
P-3 |
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✓ |
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12. |
Disassemble, inspect, measure, and adjust or replace differential pinion gears (spiders), shaft, side gears, side bearings, thrust washers, and case. |
P-3 |
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✓ |
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13. |
Reassemble and reinstall differential case assembly; measure runout; determine necessary action. |
P-3 |
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✓ |
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E.1 Limited Slip Differential |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose noise, slippage, and chatter concerns; determine necessary action. |
P-3 |
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✓ |
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2. |
Measure rotating torque; determine necessary action. |
P-3 |
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✓ |
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E.3 drive Axles |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect and replace drive axle wheel studs. |
P-1 |
✓
(P-2) |
✓ |
✓ |
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2. |
Remove and replace drive axle shafts. |
P-1 |
|
✓ |
✓ |
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3. |
Inspect and replace drive axle shaft seals, bearings, and retainers. |
P-2 |
|
✓ |
✓ |
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4. |
Measure drive axle flange runout and shaft end play; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
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5. |
Diagnose drive axle shafts, bearings, and seals for noise, vibration, and fluid leakage concerns; determine necessary action. |
P-4 |
|
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✓ |
|
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F. Four-Wheel Drive/All-Wheel Drive Component Diagnosis and Repair |
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Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect, adjust, and repair shifting controls (mechanical, electrical, and vacuum), bushings, mounts, levers, and brackets. |
P-3 |
|
✓ |
✓ |
|
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2. |
Inspect front-wheel bearings and lockings hubs; perform necessary actions(s). |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Check for leads at drive assembly seals; check vents; check lube level. |
P-2 |
✓
(P-2) |
✓ |
✓ |
|
|
4. |
Measure drive axle flange runout and shaft end play; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
5. |
Diagnose noise, vibration, and unusual steering concerns; determine necessary action. |
P-4 |
|
|
✓ |
|
|
6. |
Diagnose, test, adjust, and replace electrical/electronic components of four-wheel drive systems
|
P-4 |
|
|
✓ |
|
|
7. |
Disassemble, service, and reassemble transfer case and components. |
P-4 |
|
|
✓ |
|
|
|
|
|
 |
MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
|
|
A.
General: Suspension and Steering Systems
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Identify and interpret suspension and steering system concerns; determine necessary action. |
P-1 |
|
|
✓ |
|
|
B.
Steering Systems Diagnosis and Repair
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Disable and enable supplemental restraint system (SRS). |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Remove and replace steering weel; center/time supplemental restraint system (SRS) coil (clock spring). |
P-1 |
|
✓ |
✓ |
|
|
3. |
Diagnose steering column noises, looseness, and binding concerns (including tilt mechanisms); determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
4. |
Diagnose power steering gear (non-rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
5. |
Diagnose power steering gear (rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
6. |
Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; perform necessary action. |
P-2 |
|
✓ |
✓ |
|
|
7. |
Remove and replace rack and pinion steering gear; inspect mounting bushings and brackets. |
P-2 |
|
✓ |
✓ |
|
|
8. |
Inspect rack and pinion steering gear inner tie rod ends (sockets) and bellows boots; replace as needed. |
P-2 |
✓
Inspect only
(P-2) |
✓ |
✓ |
|
|
9. |
Determine proper power steering fluid type; inspect fluid level and condition. |
P-1 |
✓ |
✓ |
✓ |
|
|
10. |
Flush, fill, and bleed power steering system. |
P-2 |
✓ |
✓ |
✓ |
|
|
11. |
Inspect for power steering fluid leakage; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
12. |
Remove, inspect, replace, and adjust power steering pump drive belt. |
P-1 |
✓ |
✓ |
✓ |
|
|
13. |
Remove and reinstall power steering pump. |
P-2 |
✓ |
✓ |
✓ |
|
|
14. |
Remove and rinstall press fit power steering pump pulley; check pulley and belt alignment. |
P-2 |
✓
Check/
adjust PS belt
(P-2) |
✓ |
✓ |
|
|
15. |
Inspect and replace power steering hoses and fittings. |
P-2 |
✓ |
✓ |
✓ |
|
|
16. |
Flush, fill, and bleed power steering system. |
P-2 |
✓
(P-1) |
✓ |
✓ |
|
|
17. |
Inspect, replace, and adjust tie rod ends (sockets), tie rod sleeves, and clamps. |
P-1 |
✓ |
✓ |
✓ |
|
|
18. |
Test and diagnose components of electronically-controlled steering systems using a scan tool; determine necessary action. |
P-3 |
✓
Inspect
electric
power
steering
only |
✓ |
✓ |
|
|
19. |
Identify hybrid vehicle power steering system electrical circuits and safety precautions. |
P-2 |
✓ |
✓ |
✓ |
|
|
20. |
Inspect electric power-assisted steering. |
P-3 |
|
|
✓ |
|
|
C.
Suspension Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose short and long arm suspension system noises, body sway, and uneven ride height concerns; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Diagnose strut suspension system noises, body sway, and uneven ride height concerns; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
3. |
Inspect, remove, and install upper and lower control arms, bushings, shafts, and rebound bumpers. |
P-3 |
✓
Inspect
and
replace
rebound
and
jounce
bumper
only
(P-1)
|
✓ |
✓ |
|
|
4. |
Inspect, remove, and install strut rods and bushings. |
P-3 |
✓ |
✓ |
✓ |
|
|
5. |
Inspect, remove, and install upper and/or lower ball joints (with or without wear indicators). |
P-2 |
✓
Inspect
only
(P-1) |
✓ |
✓ |
|
|
6. |
Inspect, remove, and install steering knuckle assemblies. |
P-3 |
|
✓ |
✓ |
|
|
7. |
Inspect, remove, and install short and long arm suspension system coil springs and spring insulators. |
P-3 |
✓
Inspect
only
(P-1) |
✓ |
✓ |
|
|
8. |
Inspect, remove, and install torsion bars and mounts. |
P-3 |
✓
Inspect
only
(P-1) |
✓ |
✓ |
|
|
9. |
Inspect, remove, and install front stabilizer bar (sway bar) bushings, brackets, and links. |
P-3 |
✓
Inspect
only
(P-1) |
✓ |
✓ |
|
|
10. |
Inspect, remove, and install strut cartridge or assembly, strut coil spring, insulators (silencers), and upper strut bearing mount. |
P-3 |
✓
Inspect
only
(P-1) |
✓ |
✓ |
|
|
11. |
Inspect, remove, and install track bar, strut rods/radius arms, and related mounts and bushings. |
P-3 |
✓
Inspect
only
(P-1) |
✓ |
✓ |
|
|
12. |
Inspect rear suspension system leaf spring(s), bushings, center pins/bolts, and mounts. |
P-1 |
|
✓ |
✓ |
|
|
D. Related Suspension and Steering Service |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect, remove, and replace shock absorbers; inspect mounts and bushings. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Remove, inspect, and service or replace front and rear wheel bearings. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Describe the function of the power steering pressure switch. |
P-3 |
✓ |
✓ |
✓ |
|
|
E. Wheel Alignment Diagnosis, Adjustment, and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose vehicle wander, drift, pull, hard steering, bnump steer, memory steer, torque steer, and steering return concerns; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Perform pre-alignment inspection and measure vehicle ride height; perform necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Prepare vehicle for wheel alignment on alignment machine; perform four-wheel alignment by checking and adjusting front and rear wheel caster, camber; and toe as required; center steering wheel. |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Check toe-out-on-turns (turning radius); determine nbecessary action. |
P-2 |
|
✓ |
✓ |
|
|
5. |
Check SAI (steering axis inclination) and included angle; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
6. |
Check rear wheel thrust angle; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
7. |
Check for front wheel setback; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
8. |
Check front and/or rear cradle (subframe) alignment; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
9. |
Reset steering angle sensor. |
P-2 |
|
✓ |
✓ |
|
|
F. Wheels and Tires Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect, adjust, and repair shifting controls (mechanical, electrical, and vacuum), bushings, mounts, levers, and brackets. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Inspect front-wheel bearings and lockings hubs; perform necessary actions(s). |
P-2 |
|
✓ |
✓ |
|
|
3. |
Check for leads at drive assembly seals; check vents; check lube level. |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Measure drive axle flange runout and shaft end play; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
5. |
Diagnose noise, vibration, and unusual steering concerns; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
6. |
Dismount, inspect, and remount tire on wheel; balance wheel and tire assembly (static and dynamic). |
P-1 |
✓ |
✓ |
✓ |
|
|
7. |
Dismount, inspect, and remount tire on wheel equipped with tire pressure monitoring system sensor. |
P-2 |
✓ |
✓ |
✓ |
|
|
8. |
Inspect tire and wheel assembly for air loss; perform necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
9. |
Repair tire using internal patch. |
P-1 |
✓ |
✓ |
✓ |
|
|
10. |
Identify and test tire pressure monitoring system (indirect and direct) for operation; calibrate system; verify operation of instrument panel lamps. |
P-2 |
✓ |
✓ |
✓ |
|
|
11. |
Demonstrate knowledge of steps required to remove and replace sensors in a tire pressure monitoring system. |
P-1 |
✓
(P-2) |
✓ |
✓ |
|
|
|
|
|
 |
MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
|
|
A.
General: Brake System Diagnosis
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Identify
and interpret brake system concerns; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Describe procedure for performing a road test to check brake system operation; including an anti-lock brake system (ABS). |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Install wheel and torque lug nuts. |
P-1 |
✓ |
✓ |
✓ |
|
|
B.
Hydraulic System Diagnosis and Repair
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose pressure concerns in the brake system using hydraulic principles (Pascal’s Law). |
P-1 |
|
✓ |
✓ |
|
|
2. |
Measure brake pedal height, travel, and free play (as applicable); determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Check master cylinder for internal/external leaks and proper operation; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Remove, bench bleed, and reinstall master cylinder. |
P-1 |
|
✓ |
✓ |
|
|
5. |
Diagnose poor stopping, pulling or dragging concerns caused by malfunctions in the hydraulic system; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
6. |
Inspect brake lines, flexible hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging, and wear; check for loose fittings and supports; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
7. |
Replace brake lines, hoses, fittings, and supports. |
P-2 |
|
✓ |
✓ |
|
|
8. |
Fabricate brake lines using proper material and flaring procedures (double flare and ISO types). |
P-2 |
|
✓ |
✓ |
|
|
9. |
Select, handle, store, and fill brake fluids to proper level. |
P-1 |
✓ |
✓ |
✓ |
|
|
10. |
Inspect, test, and/or replace components of brake warning light system. |
P-3 |
✓ |
✓ |
✓ |
|
|
11. |
Identify components of brake warning light system. |
P-2 |
✓
(P-3) |
✓ |
✓ |
|
|
12. |
Bleed and/or flush brake system. |
P-1 |
|
✓ |
✓ |
|
|
13. |
Test brake fluid for contamination. |
P-1 |
✓ |
✓ |
✓ |
|
|
C.
Drum Brake Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose poor stopping noise, vibration, pulling, grabbing, dragging or pedal pulsation concerns; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Remove, clean, inspect, and measure brake drum diameter; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Refinish brake drum and measure final drum diameter; compare with specifications. |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Remove, clean, and inspect brake shoes, springs, pins, clips, levers, adjusters/self-adjusters, other related brake hardware, and backing support plates; lubricate and reassemble. |
P-1 |
✓ |
✓ |
✓ |
|
|
5. |
Inspect wheel cylinders for leaks and proper operation; remove and replace as needed. |
P-2 |
✓ |
✓ |
✓ |
|
|
6. |
Pre-adjust brake shoes and parking brake; install brake drums or drum/hub assemblies and wheel bearings; perform final checks and adjustments. |
P-2 |
✓ |
✓ |
✓ |
|
|
D.
Disc Brake Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose poor stopping, noise, vibration, pulling, grabbing, dragging, or pulsation concerns; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Remove and clean caliper assembly; inspect for leaks and damage/wear to caliper housing; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Clean and inspect caliper mounting and slides/pins for proper operation, wear, and damage; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Remove, inspect, and replace pads and retaining hardware; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
5. |
Lubricate and reinstall caliper, pads, and related hardware; seat pads and inspect for leaks. |
P-1 |
✓ |
✓ |
✓ |
|
|
6. |
Clean and inspect rotor; measure rotor thickness, thickness variation, and lateral runout; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
7. |
Remove and reinstall rotor. |
P-1 |
✓ |
✓ |
✓ |
|
|
8. |
Refinish rotor on vehicle; measure final rotor thickness and compare with specification. |
P-1 |
✓ |
✓ |
✓ |
|
|
9. |
Refinish rotor off vehicle; measure final rotor thickness and compare with specifications. |
P-1 |
✓ |
✓ |
✓ |
|
|
10. |
Retract and re-adjust caliper piston on an integrated parking brake system. |
P-3 |
✓ |
✓ |
✓ |
|
|
11. |
Check brake pad wear indicator; determine necessary action. |
P-2 |
✓ |
✓ |
✓ |
|
|
12. |
Describe importance of operating vehicle to burnish/break-in replacement brake pads according to manufacturer's recommendations. |
P-1 |
✓ |
✓ |
✓ |
|
|
E.
Power-Assist Units Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Check brake pedal travel with, and without, engine running to verify proper power booster operation. |
P-2 |
✓ |
✓ |
✓ |
|
|
2. |
Check vacuum supply (manifold or auxiliary pump) to vacuum-type power booster. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Inspect vacuum-type power booster unit for leaks; inspect the check-valve for proper operation; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
4. |
Inspect and test hydraulically-assisted power brake system for leaks and proper operation; determine necessary action. |
P-3 |
✓ |
✓ |
✓ |
|
|
5. |
Measure and adjust master cylinder pushrod length. |
P-3 |
✓ |
✓ |
✓ |
|
|
F.
Miscellaneous (Wheel Bearings, Parking Brakes, Electrical, ETC.) Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose wheel bearing noises, wheel shimmy, and vibration concerns; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
2. |
Remove, clean, inspect, repack, and install wheel bearings; replace seals; install hub and adjust bearings. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Check parking brake cables and components for wear, binding, and corrosion; clean, lubricate, adjust or replace as needed. |
P-2 |
✓ |
✓ |
✓ |
|
|
4. |
Check parking brake operation and parking brake indicator light system operation; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
5. |
Check operation of brake stop light system. |
P-1 |
✓ |
✓ |
✓ |
|
|
6. |
Replace wheel bearing and race. |
P-2 |
✓ |
✓ |
✓ |
|
|
7. |
Remove and reinstall sealed wheel bearing assembly. |
P-2 |
|
✓ |
✓ |
|
|
8. |
Inspect and replace wheel studs. |
P-1 |
✓ |
✓ |
✓ |
|
|
G.
Electronic Brake, Traction and Stability Control Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Identify and inspect electronic brake control system components; determine necessary action. |
P-3 |
✓ |
✓ |
✓ |
| |
2. |
Identify traction control/vehicle stability control system components. |
P-3 |
|
✓ |
✓ |
|
|
3. |
Describe the operation of a regenerative braking system. |
P-3 |
✓ |
✓ |
✓ |
|
|
4. |
Diagnose poor stopping, wheel lock-up, abnormal pedal feel, unwanted application, and noise concerns associated with the electronic brake control system; determine necessary action. |
P-2 |
|
|
✓ |
|
|
5. |
Diagnose electronic brake control system electronic control(s) and components by regtrieving diagnostic trouble codes, and/or using recommended test equipment; determine necessary action. |
P-2 |
|
|
✓ |
|
|
6. |
Depressurize high-pressure components of an electronic brake control system. |
P-3 |
|
|
✓ |
|
N/A |
7. |
Bleed the electronic brake control system hydraulic circuits. |
P-1 |
|
|
✓ |
|
|
8. |
Test, diagnose, and service electronic brake control system speed sensors (digital and analog), toothed ring (tone wheel), and circuits using a graphing multimeter (GMM)/digital storage oscilloscope (DSO) (includes output signal, resistance, shorts to voltage/ground, and frequency data). |
P-3 |
|
|
✓ |
|
|
9. |
Diagnose electronic brake control system braking concerns caused by vehicle modifications (tire size, curb height, final drive ratio, etc.). |
P-3 |
|
|
✓ |
|
N/A |
|
|
|
 |
MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
|
|
A.
General: Electrical Systems Diagnosis
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Identify and interpret drive train concerns; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Demonstrate knowledge of electrical/electronic series, parallel, and series-parallel circuits using principles of electricity (Ohm’s Law). |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Demonstrate proper use of a digital multimeter (DMM) when measuring source voltage, voltage drop (including grounds), current flow and resistance. |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Demonstrate knowledge of the causes and effects from shorts, grounds, opens, and resistance problems in electrical/electronic circuits. |
P-1 |
✓ |
✓ |
✓ |
|
|
5. |
Check operation of electrical circuits with a test light. |
P-1 |
(P-2) |
✓ |
✓ |
|
|
6. |
Check operation of electrical circuits with fused jumper wires. |
P-1 |
(P-2) |
✓ |
✓ |
|
|
7. |
Use wiring diagrams during the diagnosis (troubleshooting) of electrical/electronic circuit problems. |
P-1 |
|
|
✓ |
|
|
8. |
Diagnose the cause(s) of excessive key-off battery drain (parasitic draw); determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
9. |
Inspect and test fusible links, circuit breakers, and fuses; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
10. |
Inspect and test switches, connectors, relays, solenoid solid state devices, and wires of electrical/electronic circuits; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
11. |
Replace electrical connectors and terminal ends. |
P-1 |
✓ |
✓ |
✓ |
|
|
12. |
Repair wiring harness. |
P-1 |
|
✓ |
✓ |
|
|
13. |
Perform solder repair of electrical wiring. |
P-1 |
✓ |
✓ |
✓ |
|
|
14. |
Check electrical/electronic circuit waveforms; interpret readings and determine needed repairs. |
P-2 |
|
|
✓ |
|
|
15. |
Repair CAN/BUS wiring harness. |
P-1 |
|
|
✓ |
|
|
B.
Battery Diagnosis and Service
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Perform battery state-of-charge test; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Confirm proper battery capacity for vehicle application; perform battery capacity test; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
3. |
Maintain or restore electronic memory functions. |
P-1 |
|
✓ |
✓ |
|
|
4. |
Inspect and clean battery; fill battery cells; check battery cables, connectors, clamps, and hold-downs. |
P-1 |
|
✓ |
✓ |
|
|
5. |
Perform slow/fast battery charge according to manufacturer’s recommendations. |
P-1 |
✓ |
✓ |
✓ |
|
|
6. |
Jump-start vehicle using jumper cables and a booster battery or an auxiliary power supply. |
P-1 |
|
✓ |
✓ |
|
|
7. |
Identify high-voltage circuits of electric or hybrid electric vehicle and related safety precautions. |
P-3 |
|
✓ |
✓ |
|
|
8. |
Identify electronic modules, security systems, radios, and other accessories that require reinitialization or code entry after reconnecting vehicle battery. |
P-1 |
|
✓ |
✓ |
|
|
9. |
Identify hybrid vehicle auxiliary (12v) battery service, repair, and test procedures. |
P-3 |
|
✓ |
✓ |
|
|
C.
Starting System Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Perform starter current draw tests; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Perform starter circuit voltage drop tests; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Inspect and test starter relays and solenoids; determine necessary action. |
P-2 |
✓ |
✓ |
✓ |
|
|
4. |
Remove and install starter in a vehicle. |
P1 |
✓ |
✓ |
✓ |
|
|
5. |
Inspect and test switches, connectors, and wires of starter control circuits; determine necessary action. |
P-2 |
✓ |
✓ |
✓ |
|
|
6. |
Differentiate between electrical and engine mechanical problems that cause a slow-crank or a no-crank condition. |
P-2 |
|
✓ |
✓ |
|
|
D. Charging System Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Perform charging system output test; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Diagnose (troubleshoot) charging system for causes of undercharge, no-charge, or overcharge conditions. |
P-1 |
|
✓ |
✓ |
|
|
3. |
Inspect, adjust, or replace generator (alternator) drive belts; check pulleys and tensioners for wear; check pulley and belt alignment. |
P-1 |
✓ |
✓ |
✓ |
|
|
4. |
Remove, inspect, and re-install generator (alternator). |
P1 |
(P-2) |
✓ |
✓ |
|
|
5. |
Perform charging circuit voltage drop tests; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
E. Lighting Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose (troubleshoot) the causes of brighter-than-normal, intermittent, dim, or no light operation; determine necessary action |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Inspect interior and exterior lamps and sockets including headlights and auxiliary lights (fog lights/driving lights); replace as needed. |
P-1 |
|
✓ |
✓ |
|
|
3. |
Aim Headlights. |
P-2 |
✓ |
✓ |
✓ |
|
|
4. |
Identify system voltage and safety precautions associated with high-intensity discharge headlights. |
P-2 |
✓ |
✓ |
✓ |
|
|
F. Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect and test gauges and gauge sending units for causes of abnormal gauge readings; determine necessary action |
P-2 |
|
✓ |
✓ |
|
|
2. |
Diagnose (troubleshoot) the causes of incorrect operation of warning devices and other driver information systems; determine necessary action |
P-2 |
|
✓ |
✓ |
|
|
G. Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect, adjust, and repair shifting controls (mechanical, electrical, and vacuum), bushings, mounts, levers, and brackets. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Diagnose (troubleshoot) causes of incorrect wiper operation; diagnose wiper speed control and park problems; perform necessary action |
P-2 |
|
✓ |
✓ |
|
|
3. |
Diagnose (troubleshoot) windshield washer problems; perform necessary action |
P-2 |
|
✓ |
✓ |
|
|
H. Accessories Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose (troubleshoot) incorrect operation of motor-driven accessory circuits; determine necessary action |
P-2 |
|
✓ |
✓ |
|
|
2. |
Diagnose (troubleshoot) incorrect electric lock operation (including remote keyless entry); determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
3. |
Diagnose (troubleshoot) incorrect operation of cruise control systems; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
4. |
Diagnose (troubleshoot) supplemental restraint system (SRS) problems; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
5. |
Disable and enable an airbag system for vehicle service; verify indicator lamp operation. |
P-1 |
✓ |
✓ |
✓ |
|
|
6. |
Remove and reinstall door panel. |
P-1 |
✓ |
✓ |
✓ |
|
|
7. |
Check for module communication errors (including CAN/BUS systems) using a scan tool. |
P-2 |
|
✓ |
✓ |
|
|
8. |
Describe the operation of keyless entry/remote-start systems. |
P-3 |
✓ |
✓ |
✓ |
|
|
9. |
Verify operation of instrument panel gauges and warning/indicator lights; reset maintenance indicators. |
P-1 |
✓ |
✓ |
✓ |
|
|
10. |
Verify windshield wiper and washer operation, replace wiper blades. |
P-1 |
✓ |
✓ |
✓ |
|
|
11. |
Diagnose (troubleshoot) radio static and weak, intermittent, or no radio reception; determine necessary action. |
P-3 |
|
|
✓ |
|
|
12. |
Diagnose (troubleshoot) body electronic system circuits using a scan tool; determine necessary action. |
P-3 |
|
|
✓ |
|
N/A |
|
|
|
 |
MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
|
|
A.
General: A/C System Diagnosis and Repair
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Identify
and interpret heating and air conditioning problems; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Performance test A/C system; identify problems. |
P-1 |
|
✓ |
✓ |
|
|
4. |
Identify abnormal operating noises in the A/C system; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
5. |
Identify refrigerant type; select and connect proper gauge set; record temperature and pressure readings. |
P-1 |
|
✓ |
✓ |
|
|
6. |
Leak test A/C system; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
7. |
Diagnose noise and vibration concerns; determine necessary action. |
P-2 |
|
|
✓ |
|
N/A |
8. |
Deterine recommended oil and oil capacity for system application. |
P-1 |
|
✓ |
✓ |
|
|
9. |
Using a scan tool, observe and recore related HVAC data and trouble codes. |
P-3 |
|
✓ |
✓ |
|
|
B.
Refrigeration System Component Diagnosis and Repair
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect and replace A/C compressor drive belts, pulleys, and tensioners; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Inspect, test, service or replace A/C compressor clutch components and/or assembly; check compressor clutch air gap; adjust as needed. |
P-2 |
|
✓ |
✓ |
|
|
3. |
Remove, inspect, and reinstall A/C compressor and mountings; determine recommended oil quantity. |
P-2 |
|
✓ |
✓ |
|
|
4. |
Identify hybrid vehicle A/C system electrical circuits and service/safety precautions. |
P-2 |
✓ |
✓ |
✓ |
|
|
5. |
Determine need for an additional A/C system filter; perform necessary action. |
P-3 |
|
✓ |
✓ |
| |
6. |
Remove and inspect A/C system mufflers, hoses, lines, fittings, O-rings, seals, and service valves; perform necessary action. |
P-2 |
|
✓ |
✓ |
|
|
7. |
Determine need for an additional A/C system filter; perform necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
8. |
Remove, inspect, and reinstall receiver/drier or accumulator/drier; determine recommended oil quantity. |
P-2 |
|
✓ |
✓ |
|
|
9. |
Remove, inspect, and install expansion valve or orifice (expansion) tube. |
P-1 |
|
✓ |
✓ |
|
|
10. |
Inspect evaporator housing water drain; perform necesary action. |
P-1 |
|
✓ |
✓ |
|
|
11. |
Diagnose A/C system conditions that cause the protectin devices (pressure, thermal, and PCM) to interrupt system operation; determine necessary action. |
P-2 |
|
|
✓ |
|
|
12. |
Determine procedure to remove and reinstall evaporator; determine required oil quantity. |
P-2 |
|
|
✓ |
|
|
13. |
Remove, inspect, and reinstall condenser; deterine required oil quantity. |
P-2 |
|
|
✓ |
|
|
C.
Heating, Ventilation, and Engine Cooling Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspet engine cooling and heater systems hoses; perform necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Inspect and test heater control valve(s); perform necessary action. |
P-2 |
|
✓ |
✓ |
|
|
3. |
Diagnose temperature control problems in the heater/ventilation system; determine PCM) to interrupt system operation' determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
4. |
Determine procedure to remove, inspect, and reinstall heater core. |
P-3 |
|
✓ |
✓ |
|
|
D.
Operating Systems and Related Controls Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Inspect and test A/C-heater blower motors, resistors, switches, relays, wiring, and protection devices; perform necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Diagnose A/C compressor clutch control systems; determine necessary action. |
P-2 |
|
|
✓ |
|
|
3. |
Diagnose malfunctions in the vacuum, mechanical, and electrical components and controls of the heating, ventilation, and A/C (HVAC) system; determine necessary action. |
P-2 |
|
|
✓ |
|
|
4. |
Inspect and test A/C-heater control panel assembly; determine necessary action. |
P-3 |
|
|
✓ |
|
|
5. |
Inspect and test A/C-heater control cables, motors, and linkages; perform necessary action. |
P-3 |
|
|
✓ |
|
|
6. |
Inspect A/C-heater ducts, doors, hoses, cabin filters, and outlets; perform necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
7. |
Identify the source of A/C system odors. |
P-2 |
✓ |
✓ |
✓ |
|
|
8. |
Check operation of automatic or semi-automatic heating, ventilation, and air-conditioning (HVAC) control systems; determine necessary action. |
P-2 |
|
|
✓ |
|
|
E.
Refrigerant Recovery, Recycling, and Handling |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Perform correct use and maintenance of refrigerant handling equipment according to equipment manufacturer’s standards. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Identify and recover A/C system refrigerant. |
P-1 |
|
✓ |
✓ |
|
|
3. |
Recycle, label, and store refrigerant. |
P-1 |
|
✓ |
✓ |
|
|
4. |
Evacuate and charge A/C system; add refrigerant oil as required. |
P-1 |
|
✓ |
✓ |
|
|
|
|
|
 |
MLR - Maintenance & Light Repair |
AST - Auto Service Technology (Includes MLR) |
MAST - Master Auto Service Technology (Includes MLR and AST) |
|
|
A.
General: Engine Diagnosis
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Identify and interpret engine performance concerns; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
2. |
Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins. |
P-1 |
✓ |
✓ |
✓ |
|
|
3. |
Diagnose abnormal engine noises or vibration concerns; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
4. |
Diagnose the cause of excessive oil consumption, coolant consumption, unusual exhaust color, odor, and sound; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
5. |
Perform engine absolute (vacuum/boost) manifold pressure tests; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
6. |
Perform cylinder power balance test; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
7. |
Perform cylinder cranking and running compression tests; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
8. |
Perform cylinder leakage test; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
9. |
Diagnose engine mechanical, electrical, electronic, fuel, and ignition concerns; determine necessary action |
P-2 |
|
✓ |
✓ |
|
|
10. |
Verify engine operating temperature; determine necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
11. |
Verify correct camshaft timing. |
P-1 |
|
✓ |
✓ |
|
|
B.
Computerized Controls Diagnosis and Repair
|
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Retrieve and record diagnostic trouble codes, OBD monitor status, and freeze frame data; clear codes when applicable. |
P-1 |
✓ |
✓ |
✓ |
|
|
2. |
Access and use service information to perform step-by-step (troubleshooting) diagnosis. |
P-2 |
|
✓ |
✓ |
|
|
3. |
Perform active tests of actuators using a scan tool; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
4. |
Describe the importance of running all OBDII monitors for repair verification |
P-1 |
✓ |
✓ |
✓ |
|
|
5. |
Diagnose the causes of emissions or drivability concerns with stored or active diagnostic trouble codes; obtain, graph, and interpret scan tool data. |
P-1 |
|
✓ |
✓ |
|
|
6. |
Diagnose emissions or drivability concerns without stored diagnostic trouble codes; determine necessary action. |
P-1 |
|
|
✓ |
|
|
7. |
Inspect and test computerized engine control system sensors, powertrain/engine control module (PCM/ECM), actuators, and circuits using a graphing multimeter (GMM)/digital storage oscilloscope (DSO); perform necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
8. |
Diagnose driveability and emissions problems resulting from malfunctions of interrelated systems (cruise control, security alarms, suspension controls, traction controls, A/C, automatic transmissions, non-OEM installed accessories, or similar systems); determine necessary action. |
P-3 |
|
|
✓ |
|
N/A |
C.
Ignition Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose (troubleshoot) ignition system related problems such as no-starting, hard starting, engine misfire, poor drivability, spark knock, power loss, poor mileage, and emissions concerns; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
2. |
Inspect and test crankshaft and camshaft position sensor(s); perform necessary action. |
P-1 |
|
✓ |
✓ |
|
|
3. |
Inspect, test, and/or replace ignition control module, powertrain/engine control module; reprogram as necessary. |
P-3 |
|
✓ |
✓ |
|
|
4. |
Remove and replace spark plugs; inspect secondary ignition components for wear and damage. |
P-1 |
|
✓ |
✓ |
|
|
D.
Fuel, Air Induction, and Exhaust Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose (troubleshoot) hot or cold no-starting, hard starting, poor drivability, incorrect idle speed, poor idle, flooding, hesitation, surging, engine misfire, power loss, stalling, poor mileage, dieseling, and emissions problems; determine necessary action. |
P-2 |
|
|
✓ |
|
|
2. |
Check fuel for contaminants; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
3. |
Inspect and test fuel pumps and pump control systems for pressure, regulation, and volume; perform necessary action. |
P-1 |
|
✓ |
✓ |
|
|
4. |
Replace fuel filter(s). |
P-1 |
✓ |
✓ |
✓ |
|
|
5. |
Inspect, service, or replace air filters, filter housings, and intake duct work. |
P-1 |
✓ |
✓ |
✓ |
|
|
6. |
Inspect throttle body, air induction system, intake manifold and gaskets for vacuum leaks and/or unmetered air. |
P-2 |
|
✓ |
✓ |
|
|
7. |
Inspect and test fuel injectors. |
P-2 |
|
✓ |
✓ |
|
|
8. |
Verify idle control operation. |
P-1 |
|
✓ |
✓ |
|
|
9. |
Inspect integrity of the exhaust manifold, exhaust pipes, muffler(s), catalytic converter(s), resonator(s), tail pipe(s), and heat shields; perform necessary action. |
P-1 |
✓ |
✓ |
✓ |
|
|
10. |
Inspect condition of exhaust system hangers, brackets, clamps, and heat shields; repair or replace as needed. |
P-1 |
✓ |
✓ |
✓ |
|
|
11. |
Perform exhaust system back-pressure test; determine necessary action. |
P-2 |
|
|
✓ |
|
|
12. |
Check and refill diesel exhaust fluid (DEF). |
P-3 |
✓ |
✓ |
✓ |
|
|
13. |
Test the operation of turbocharger/supercharger systems; determine necessary action. |
P-3 |
|
|
✓ |
|
|
E.
Emissions Control Systems Diagnosis and Repair |
|
Task |
Priority |
MLR |
AST |
MAST |
Animation |
Video |
1. |
Diagnose oil leaks, emissions, and drivability concerns caused by the positive crankcase ventilation (PCV) system; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
2. |
Inspect, test, and service positive crankcase ventilation (PCV) filter/breather cap, valve, tubes, orifices, and hoses; perform necessary action. |
P-2 |
✓ |
✓ |
✓ |
|
|
3. |
Diagnose emissions and drivability concerns caused by the exhaust gas recirculation (EGR) system; determine necessary action. |
P-3 |
|
✓ |
✓ |
|
|
4. |
Diagnose emissions and drivability concerns caused by the secondary air injection and catalytic converter systems; determine necessary action. |
P-2 |
|
✓ |
✓ |
|
|
5. |
Diagnose emissions and drivability concerns caused by the evaporative emissions control system; determine necessary action. |
P-2 |
|
|
✓ |
|
|
6. |
Inspect A/C-heater ducts, doors, hoses, cabin filters, and outlets; perform necessary action. |
P-2 |
|
|
✓ |
|
|
7. |
Inspect, test, service, and replace components of the EGR system including tubing, exhaust passages, vacuum/pressure controls, filters, and hoses; perform necessary action |
P-2 |
|
✓ |
✓ |
|
|
8. |
Inspect and test electrical/electronically-operated components and circuits of air injection systems; perform necessary action. |
P-3 |
|
✓ |
✓ |
|
|
9. |
Inspect and test catalytic converter efficiency. |
P-2 |
|
✓ |
✓ |
|
|
10. |
Inspect and test components and hoses of the evaporative emissions control system; perform necessary action. |
P-1 |
|
✓ |
✓ |
|
|
11. |
Interpret diagnostic trouble codes (DTCs) and scan tool data related to the emissions control systems; determine necessary action. |
P-1 |
|
✓ |
✓ |
|
|
|
| |