| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. General Safety | ||
| C451 | Identify general shop safety rules and procedures. | 0A1 | P-1 |
| C456 | Identify marked safety areas. | 0A6 | P-1 |
| C458 | Identify the location and the types of fire extinguishers and other fire safety equipment; demonstrate knowledge of the procedures for using fire extinguishers and other fire safety equipment. | 0A7 | P-1 |
| C459 | Identify the location and use of eye wash stations. | 0A8 | P-1 |
| C460 | Identify the location of the posted evacuation routes. | 0A9 | P-1 |
| C465 | Locate and demonstrate knowledge of safety data sheets (SDS). | 0A15 | P-1 |
| NN00 | Draw a diagram of the shop and label all parts. | N/A | N/A |
| Task Sheet Group Title Page | B. General Safety: Personal Safety | ||
| C461 | Comply with the required use of safety glasses, ear protection, gloves, and shoes, during lab/shop activities. | 0A10 | P-1 |
| C462 | Identify and wear appropriate clothing for lab/shop activities. | 0A11 | P-1 |
| C463 | Secure hair and jewelry for lab/shop activities. | 0A12 | P-1 |
| Task Sheet Group Title Page | C. General Safety: Tool Safety | ||
| C466 | Identify tools and their usage in automotive applications. | 0B1 | P-1 |
| C467 | Identify standard and metric designation. | 0B2 | P-1 |
| C452 | Utilize safe procedures for handling of tools and equipment. | 0A2 | P-1 |
| C468 | Demonstrate safe handling and use of appropriate tools. | 0B3 | P-1 |
| C469 | Demonstrate proper cleaning, storage, and maintenance of tools and equipment. | 0B4 | P-1 |
| C896 | Demonstrate proper use of precision measuring tools (e.g., micrometer, dial-indicator, dial-caliper). | 0B5 | P-1 |
| Task Sheet Group Title Page | D. General Safety: Vehicle Protection and Jack and Lift Safety | ||
| C473 | Identify purpose and demonstrate proper use of fender covers, mats. | 0C2 | P-1 |
| C455 | Utilize proper ventilation procedures for working within the lab/shop area. | 0A5 | P-1 |
| C453 | Identify and use proper placement of floor jacks and jack stands. | 0A3 | P-1 |
| C454 | Identify and use proper procedures for safe lift operation. | 0A4 | P-1 |
| C476 | Ensure vehicle is prepared to return to customer per school/company policy (floor mats, steering wheel cover, etc). | 0D1 | P-1 |
| Task Sheet Group Title Page | E. General Safety: Vehicle, Customer, and Service Information | ||
| NN | Proper vehicle identification information: Define the use and purpose of the VIN, engine numbers, and data code; locate VIN, and apply knowledge of VIN information. | N/A | N/A |
| C472 | Identify information needed and the service requested on a repair order. | 0C1 | P-1 |
| C474 | Demonstrate use of the three Cs (concern, cause, and correction). | 0C3 | P-1 |
| C475 | Review vehicle service history. | 0C4 | P-1 |
| C590 | Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. | 0C5 | P-1 |
| Task Sheet Group Title Page | F. General Safety: SRS and ABS Safety | ||
| C464 | Demonstrate awareness of the safety aspects of supplemental restraint systems (SRS), electronic brake control systems, and hybrid vehicle high voltage circuits. | 0A13 | P-1 |
| C895 | Demonstrate awareness of the safety aspects of high voltage circuits (such as high intensity discharge [HID] lamps, ignitions systems, injection systems, etc.). | 0A14 | P-1 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. Engine Repair: Vehicle, Customer, and Service Information | ||
| C885 | Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. | 1A1 | P-1 |
| C002 | Research vehicle service information including fluid type, internal engine operation, vehicle service history, service precautions, and technical service bulletins. | 1A2 | P-1 |
| C900 | Identify service precautions related to service of the internal combustion engine of a hybrid vehicle. | 1A9 | P-2 |
| NN01 | Practice Task: Demonstrate the use of the three Cs (concern, cause, and correction). | N/A | N/A |
| Task Sheet Group Title Page | B. Engine Repair: Fastener Repair | ||
| C886 | Perform common fastener and thread repair, to include: remove broken bolt, restore internal and external threads, and repair internal threads with thread insert. | 1A7 | P-1 |
| Task Sheet Group Title Page | C. Engine Repair: Engine Mechanical Testing | ||
| C004 | Inspect engine assembly for fuel, oil, coolant, and other leaks; determine needed action. | 1A4 | P-1 |
| C898 | Verify operation of the instrument panel engine warning indicators. | 1A3 | P-1 |
| NN09 | Perform cranking sound diagnosis. | N/A | N/A |
| C392 | Perform engine absolute manifold pressure tests (vacuum/boost); determine needed action. | 8A5 | P-1 |
| C393 | Perform cylinder power balance tests; determine needed action. | 8A6 | P-2 |
| C709 | Perform cylinder cranking and running compression tests; determine needed action. | 8A7 | P-1 |
| C395 | Perform cylinder leakage tests; determine needed action. | 8A8 | P-1 |
| Task Sheet Group Title Page | D. Engine Repair: Engine Removal | ||
| C671 | Remove and reinstall engine on a newer vehicle equipped with OBD; reconnect all attaching components and restore the vehicle to running condition. | 1A10 | P-3 |
| Task Sheet Group Title Page | E. Engine Repair: Cylinder Head Removal, Inspection, and Installation | ||
| C673 | Remove cylinder head; inspect gasket condition; install cylinder head and gasket; tighten according to manufacturer’s specification and procedure. | 1B1 | P-1 |
| C674 | Clean and visually inspect a cylinder head for cracks; check gasket surface areas for warpage and surface finish; check passage condition. | 1B2 | P-1 |
| Task Sheet Group Title Page | F. Engine Repair: Cylinder Head Disassembly, Inspection, and Repair | ||
| C021 | Inspect pushrods, rocker arms, rocker arm pivots and shafts for wear, bending, cracks, looseness, and blocked oil passages (orifices); determine needed action. | 1B3 | P-2 |
| C722 | Inspect valve lifters; determine needed action. | 1B12 | P-2 |
| C724 | Inspect and/or measure camshaft for runout, journal wear, and lobe wear. | 1B13 | P-3 |
| C027 | Inspect camshaft bearing surface for wear, damage, out-of-round, and alignment; determine needed action. | 1B14 | P-3 |
| C718 | Inspect valve springs for squareness and free height comparison; determine needed action. | 1B7 | P-3 |
| C719 | Inspect valve guides for wear; check valve stem-to-guide clearance; determine needed action. | 1B9 | P-3 |
| C720 | Inspect valves and valve seats; determine needed action. | 1B10 | P-3 |
| C721 | Check valve spring assembled height and valve stem height; determine needed action. | 1B11 | P-3 |
| C677 | Establish camshaft position sensor indexing. | 1B6 | P-1 |
| C723 | Adjust valves (mechanical or hydraulic lifters). | 1B4 | P-1 |
| Task Sheet Group Title Page | G. Engine Repair: Block Disassembly, Inspection, and Repair | ||
| C679 | Remove, inspect, and/or replace crankshaft vibration damper (harmonic balancer). | 1C1 | P-1 |
| C029 | Disassemble engine block; clean and prepare components for inspection and reassembly. | 1C2 | P-1 |
| C030 | Inspect engine block for visible cracks, passage condition, core and gallery plug condition, and surface warpage; determine needed action. | 1C3 | P-2 |
| C726 | Inspect and measure cylinder walls/sleeves for damage, wear, and ridges; determine needed action. | 1C4 | P-2 |
| C678 | Inspect and measure piston skirts and ring lands; determine needed action. | 1C10 | P-2 |
| C727 | Deglaze and clean cylinder walls. | 1C5 | P-2 |
| C034 | Inspect and measure camshaft bearings for wear, damage, out-of-round, and alignment; determine needed action. | 1C6 | P-3 |
| C730 | Inspect auxiliary shaft(s) (balance, intermediate, idler, counterbalance and/or silencer); inspect shaft(s) and support bearings for damage and wear; determine needed action; reinstall and time. | 1C13 | P-2 |
| Task Sheet Group Title Page | H. Engine Repair: Crankshaft and Oil Pump Service | ||
| C728 | 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 needed action. | 1C7 | P-1 |
| C036 | Inspect main and connecting rod bearings for damage and wear; determine needed action. | 1C8 | P-2 |
| C729 | Identify piston and bearing wear patterns that indicate connecting rod alignment and main bearing bore problems; determine needed action. | 1C9 | P-3 |
| C733 | Inspect oil pump gears or rotors, housing, pressure relief devices, and pump drive; perform needed action. | 1D13 | P-2 |
| Task Sheet Group Title Page | I. Engine Repair: Assemble Engine Block | ||
| C899 | Verify engine mechanical timing. | 1A6 | P-1 |
| C676 | 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. | 1B5 | P-1 |
| C597 | Determine piston-to-bore clearance. | 1C11 | P-2 |
| C040 | Inspect, measure, and install piston rings. | 1C12 | P-2 |
| C731 | Assemble engine block. | 1C14 | P-1 |
| Task Sheet Group Title Page | J. Engine Repair: Miscellaneous In-Vehicle Engine Tasks | ||
| C541 | Install engine covers using gaskets, seals, and sealers as required. | 1A5 | P-1 |
| C596 | Inspect, remove, and/or replace engine mounts. | 1A8 | P-2 |
| C675 | Replace valve stem seals on an assembled engine; inspect valve spring retainers, locks/keepers, and valve lock/keeper grooves; determine needed action. | 1B8 | P-3 |
| Task Sheet Group Title Page | K. Engine Repair: Lubrication System Service | ||
| C737 | Perform engine oil and filter change; use proper fluid type per manufacturer specification. | 1D10 | P-1 |
| C732 | Perform oil pressure tests; determine needed action. | 1D9 | P-1 |
| C736 | Inspect, test, and replace oil temperature and pressure switches and sensors. | 1D12 | P-2 |
| Task Sheet Group Title Page | L. Engine Repair: Cooling System Service | ||
| C578 | Perform cooling system pressure and dye tests to identify leaks; check coolant condition and level; inspect and test radiator, pressure cap, coolant recovery tank, heater core, and galley plugs; determine needed action. | 1D1 | P-1 |
| C734 | Inspect, replace, and/or adjust drive belts, tensioners, and pulleys; check pulley and belt alignment. | 1D3 | P-1 |
| NN10 | Inspect and replace engine cooling and heater system hoses. | N/A | N/A |
| C735 | Remove, inspect, and replace thermostat and gasket/seal. | 1D7 | P-1 |
| C050 | Inspect and/or test coolant; drain and recover coolant; flush and refill cooling system; use proper fluid type per manufacturer specification; bleed air as required. | 1D4 | P-1 |
| C680 | Inspect, remove, and replace water pump. | 1D5 | P-2 |
| C052 | Remove and replace radiator. | 1D6 | P-2 |
| C053 | Inspect and test fans(s), fan clutch (electrical or mechanical), fan shroud, and air dams; determine needed action. | 1D8 | P-1 |
| C871 | Inspect auxiliary coolers; determine needed action. | 1D11 | P-3 |
| C598 | Identify causes of engine overheating. | 1D2 | P-1 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. Automatic Transmission and Transaxle: Vehicle, Customer, and Service Information | ||
| C681 | Research vehicle service information, fluid type, vehicle service history, service precautions, and technical service bulletins. | 2A2 | P-1 |
| C606 | Describe the operational characteristics of a continuously variable transmission (CVT). | 2C4 | P-3 |
| C607 | Describe the operational characteristics of a hybrid vehicle drive train. | 2C5 | P-3 |
| NN02 | Demonstrate the use of the three Cs (concern, cause, and correction). | N/A | N/A |
| Task Sheet Group Title Page | B. Automatic Transmission and Transaxle: Inspection and Testing | ||
| C740 | Perform pressure tests (including transmissions/transaxles equipped with electronic pressure control); determine needed action. | 2A6 | P-1 |
| C741 | Perform stall test; determine needed action. | 2A8 | P-2 |
| C063 | Perform lock-up converter system tests; determine needed action. | 2A9 | P-3 |
| Task Sheet Group Title Page | C. Automatic Transmission and Transaxle: Diagnosis | ||
| C599 | Identify and interpret transmission/transaxle concerns, differentiate between engine performance and transmission/transaxle concerns; determine needed action. | 2A1 | P-1 |
| C902 | Check fluid level in a transmission or a transaxle equipped with a dipstick. | 2A4 | P-1 |
| C903X | Check fluid level in a transmission or a transaxle not equipped with a dipstick. | 2A5 | P-1 |
| C682 | Diagnose fluid loss and condition concerns; determine needed action. | 2A3 | P-1 |
| C600 | Diagnose electronic transmission/transaxle control systems using appropriate test equipment and service information. | 2A11 | P-1 |
| C601 | Inspect, test, adjust, repair, and/or replace electrical/electronic components and circuits including computers, solenoids, sensors, relays, terminals, connectors, switches, and harnesses; demonstrate understanding of relearn procedure. | 2B3 | P-1 |
| C066 | Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles. | 2A10 | P-1 |
| C747 | Diagnose pressure concerns in a transmission using hydraulic principles (Pascal’s Law). | 2A12 | P-2 |
| C743 | Diagnose noise and vibration concerns; determine needed action. | 2A7 | P-2 |
| Task Sheet Group Title Page | D. Automatic Transmission and Transaxle: Maintenance and Repair | ||
| C907 | Drain and replace fluid and filter(s); use proper fluid type per manufacturer specification. | 2B4 | P-1 |
| C683 | Inspect, adjust, and/or replace external manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch. | 2B1 | P-1 |
| C748 | Inspect for leakage; replace external seals, gaskets, and bushings. | 2B2 | P-2 |
| C602 | Inspect, replace and/or align powertrain mounts. | 2B5 | P-2 |
| Task Sheet Group Title Page | E. Automatic Transmission and Transaxle: Transmission Disassembly and Inspection | ||
| C684 | Disassemble, clean, and inspect transmission/transaxle. | 2C6 | P-1 |
| C688 | Inspect, measure, and reseal oil pump assembly and components. | 2C10 | P-2 |
| C689 | Measure transmission/transaxle end play and/or preload; determine needed action. | 2C11 | P-1 |
| C752 | Inspect and measure planetary gear assembly components; determine needed action. | 2C15 | P-2 |
| C751 | Inspect bushings; determine needed action. | 2C14 | P-2 |
| C750 | Inspect, measure, and/or replace thrust washers and bearings. | 2C12 | P-2 |
| C759 | Inspect one-way clutches, races, rollers, sprags, springs, cages, and retainers; determine needed action. | 2C22 | P-2 |
| C690 | Inspect oil delivery circuits, including seal rings, ring grooves, and sealing surface areas, feed pipes, orifices, and check valves/balls. | 2C13 | P-2 |
| C753 | Inspect case bores, passages, bushings, vents, and mating surfaces; determine needed action. | 2C16 | P-2 |
| C686 | Inspect servo and accumulator bores, pistons, seals, pins, springs, and retainers; determine needed action. | 2C8 | P-2 |
| C756 | Inspect clutch drum, piston, check-balls, springs, retainers, seals, friction plates, pressure plates, and bands; determine needed action. | 2C19 | P-2 |
| C757 | Measure clutch pack clearance; determine needed action. | 2C20 | P-1 |
| C758 | Air test operation of clutch and servo assemblies. | 2C21 | P-1 |
| C685 | Inspect, measure, clean, and replace valve body (includes surfaces, bores, springs, valves, switches, solenoids, sleeves, retainers, brackets, check valves/balls, screens, spacers, and gaskets). | 2C7 | P-2 |
| C754 | Diagnose and inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform needed action. | 2C17 | P-2 |
| C755 | Inspect, measure, repair, adjust or replace transaxle final drive components. | 2C18 | P-2 |
| Task Sheet Group Title Page | F. Automatic Transmission and Transaxle: Transmission Removal and Replacement | ||
| C604 | Remove and reinstall transmission/transaxle and torque converter; inspect engine core plugs, rear crankshaft seal, dowel pins, dowel pin holes, and mating surfaces. | 2C1 | P-2 |
| C749 | Inspect, leak test, flush and/or replace transmission/transaxle oil cooler, lines, and fittings. | 2C2 | P-1 |
| C605 | Inspect converter flex (drive) plate, converter attaching bolts, converter pilot, converter pump drive surfaces, converter end play, and crankshaft pilot bore. | 2C3 | P-2 |
| Task Sheet Group Title Page | G. Automatic Transmission and Transaxle: Assemble Transmission | ||
| C083 | Assemble transmission/transaxle. | 2C9 | P-1 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. Manual Drive Train and Axles: Vehicle, Customer, and Service Information | ||
| C102 | Research vehicle service information including fluid type, vehicle service history, service precautions, and technical service bulletins. | 3A2 | P-1 |
| C101 | Identify and interpret drive train concerns; determine needed action. | 3A1 | P-1 |
| C611 | Describe the operational characteristics of an electronically controlled manual transmission/transaxle. | 3C2 | P-2 |
| NN03 | Demonstrate the use of the three Cs (concern, cause, and correction). | N/A | N/A |
| Task Sheet Group Title Page | B. Manual Drive Train and Axles: Transmission/Transaxle Maintenance | ||
| C691 | Check fluid condition; check for leaks; determine needed action. | 3A3 | P-1 |
| C105 | Drain and refill manual transmission/transaxle and final drive unit; use proper fluid type per manufacturer specification. | 3A4 | P-1 |
| Task Sheet Group Title Page | C. Manual Drive Train and Axles: Clutch Maintenance | ||
| C107 | Inspect clutch pedal linkage, cables, automatic adjuster mechanisms, brackets, bushings, pivots, and springs; perform needed action. | 3B2 | P-1 |
| C938 | Check and adjust clutch master cylinder fluid level; check for leaks; use proper fluid type per manufacturer specification. | 3B5 | P-1 |
| C111 | Bleed clutch hydraulic system. | 3B4 | P-1 |
| Task Sheet Group Title Page | D. Manual Drive Train and Axles: Clutch Diagnosis and Repair | ||
| C106 | Diagnose clutch noise, binding, slippage, pulsation, and chatter; determine needed action. | 3B1 | P-1 |
| C848 | Measure flywheel runout and crankshaft end play; determine needed action. | 3B7 | P-2 |
| C847 | Inspect flywheel and ring gear for wear, cracks, and discoloration; determine needed action. | 3B6 | P-1 |
| C608 | Inspect and/or replace clutch pressure plate assembly, clutch disc, release (throw-out) bearing, linkage, and pilot bearing/bushing (as applicable). | 3B3 | P-1 |
| Task Sheet Group Title Page | E. Manual Drive Train and Axles: Transmission/Transaxle Diagnosis | ||
| C609 | Diagnose noise concerns through the application of transmission/transaxle powerflow principles. | 3C3 | P-2 |
| C693 | Diagnose hard shifting and jumping out of gear concerns; determine needed action. | 3C4 | P-2 |
| C887 | Diagnose transaxle final drive assembly noise and vibration concerns; determine needed action. | 3C5 | P-3 |
| Task Sheet Group Title Page | F. Manual Drive Train and Axles: Transmission/Transaxle Repair | ||
| C768 | Inspect, adjust, lubricate, and/or replace shift linkages, brackets, bushings, cables, pivots, and levers. | 3C1 | P-2 |
| C910 | Disassemble, inspect, clean, and reassemble internal transmission/transaxle components. | 3C6 | P-2 |
| Task Sheet Group Title Page | G. Manual Drive Train and Axles: Drive Shaft, Half Shaft, Universal, and Constant-Velocity Joint Diagnosis and Repair | ||
| C132 | Diagnose constant-velocity (CV) joint noise and vibration concerns; determine needed action. | 3D1 | P-1 |
| C849 | Inspect, service, and/or replace shafts, yokes, boots, and universal/CV joints. | 3D4 | P-1 |
| C134 | Inspect, remove and/or replace bearings, hubs, and seals. | 3D3 | P-1 |
| C133 | Diagnose universal joint noise and vibration concerns; perform needed action. | 3D2 | P-2 |
| C779 | Check shaft balance and phasing; measure shaft runout; measure and adjust driveline angles. | 3D5 | P-2 |
| Task Sheet Group Title Page | H. Manual Drive Train and Axles: Drive Axle Diagnosis and Repair | ||
| C911 | Check and adjust differential case fluid level; use proper fluid type per manufacturer specification. | 3E1:2 | P-1 |
| C912 | Drain and refill differential case; use proper fluid type per manufacturer specification. | 3E1:3 | P-1 |
| C785 | Clean and inspect differential case; check for leaks; inspect housing vent. | 3E1:1 | P-1 |
| C889 | Inspect and replace companion flange and/or pinion seal; measure companion flange runout. | 3E1:5 | P-2 |
| C138 | Diagnose noise and vibration concerns; determine needed action. | 3E1:4 | P-2 |
| C780 | Inspect ring gear and measure runout; determine needed action. | 3E1:6 | P-3 |
| C890 | Remove, inspect, reinstall, and/or replace drive pinion and ring gear, spacers, sleeves, and bearings. | 3E1:7 | P-3 |
| C147 | Disassemble, inspect, measure, adjust, and/or replace differential pinion gears (spiders), shaft, side gears, side bearings, thrust washers, and case. | 3E1:12 | P-3 |
| C781 | Measure and adjust drive pinion depth. | 3E1:8 | P-3 |
| C782 | Measure and adjust drive pinion bearing preload. | 3E1:9 | P-3 |
| C148 | Reassemble and reinstall differential case assembly; measure runout; determine needed action. | 3E1:13 | P-3 |
| C145 | 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). | 3E1:10 | P-3 |
| C783 | Check ring and pinion tooth contact patterns; perform needed action. | 3E1:11 | P-3 |
| Task Sheet Group Title Page | I. Manual Drive Train and Axles: Limited Slip Differential | ||
| C784 | Diagnose noise, slippage, and chatter concerns; determine needed action. | 3E2:1 | P-3 |
| C786 | Measure rotating torque; determine needed action. | 3E2:2 | P-3 |
| Task Sheet Group Title Page | J. Manual Drive Train and Axles: Drive Axle Shaft | ||
| C153 | Diagnose drive axle shafts, bearings, and seals for noise, vibration, and fluid leakage concerns; determine needed action. | 3E3:5 | P-2 |
| C154 | Inspect and replace drive axle wheel studs. | 3E3:1 | P-1 |
| C850 | Measure drive axle flange runout and shaft end play; determine needed action. | 3E3:4 | P-2 |
| C155 | Remove and replace drive axle shafts. | 3E3:2 | P-1 |
| C156 | Inspect and replace drive axle shaft seals, bearings, and retainers. | 3E3:3 | P-2 |
| Task Sheet Group Title Page | K. Manual Drive Train and Axles: Four-Wheel Drive/ All-Wheel Drive Component Diagnosis and Repair | ||
| C787 | Diagnose noise, vibration, and unusual steering concerns; determine needed action. | 3F5 | P-3 |
| C788 | Inspect, adjust, and repair shifting controls (mechanical, electrical, and vacuum), bushings, mounts, levers, and brackets. | 3F1 | P-3 |
| C875 | Disassemble, service, and reassemble transfer case and components. | 3F7 | P-2 |
| C876 | Inspect locking hubs; determine needed action(s). | 3F2 | P-3 |
| C914 | Check for leaks at drive assembly and transfer case seals; check vents; check fluid level; use proper fluid type per manufacturer specification. | 3F3 | P-3 |
| C878 | Diagnose, test, adjust, and/or replace electrical/electronic components of four-wheel drive/all-wheel drive systems. | 3F6 | P-2 |
| C613 | Identify concerns related to variations in tire circumference and/or final drive ratios. | 3F4 | P-2 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. Suspension and Steering Systems: Vehicle, Customer, and Service Information | ||
| C166 | Research vehicle service information including fluid type, vehicle service history, service precautions, and technical service bulletins. | 4A1 | P-1 |
| C851 | Identify and interpret suspension and steering system concerns; determine needed action. | 4A2 | P-1 |
| NN04 | Demonstrate the use of the three Cs (concern, cause, and correction). | N/A | N/A |
| Task Sheet Group Title Page | B. Suspension and Steering Systems: Wheel and Tire Maintenance | ||
| C619 | Inspect tire condition; identify tire wear patterns; check for correct tire size, application (load and speed ratings), and air pressure as listed on the tire information placard/label. | 4F1 | P-1 |
| C222 | Rotate tires according to manufacturer’s recommendations including vehicles equipped with tire pressure monitoring systems (TPMS). | 4F3 | P-1 |
| C620 | Dismount, inspect, and remount tire on wheel; balance wheel and tire assembly. | 4F6 | P-1 |
| C936 | Demonstrate knowledge of steps required to remove and replace sensors in a tire pressure monitoring system (TPMS) including relearn procedure. | 4F11 | P-1 |
| C621 | Dismount, inspect, and remount tire on wheel equipped with tire pressure monitoring system sensor. | 4F7 | P-1 |
| Task Sheet Group Title Page | C. Suspension and Steering Systems: Wheel and Tire Diagnosis | ||
| C580 | Inspect tire and wheel assembly for air loss; perform needed action. | 4F8 | P-1 |
| C552 | Repair tire following vehicle manufacturer approved procedure. | 4F9 | P-1 |
| C701 | Measure wheel, tire, axle flange, and hub runout; determine needed action. | 4F4 | P-2 |
| C937 | Identify indirect and direct tire pressure monitoring systems (TPMS); calibrate system; verify operation of instrument panel lamps. | 4F10 | P-1 |
| C855 | Diagnose wheel/tire vibration, shimmy, and noise; determine needed action. | 4F2 | P-2 |
| C796 | Diagnose tire pull problems; determine needed action. | 4F5 | P-1 |
| Task Sheet Group Title Page | D. Suspension and Steering Systems: Power Steering Pump Maintenance and Service | ||
| C177 | Inspect power steering fluid level and condition. | 4B9 | P-1 |
| C178 | Flush, fill, and bleed power steering system; use proper fluid type per manufacturer specification. | 4B10 | P-2 |
| C180 | Remove, inspect, replace, and/or adjust power steering pump drive belt. | 4B12 | P-1 |
| C179 | Inspect for power steering fluid leakage; determine needed action. | 4B11 | P-1 |
| C183 | Inspect, remove, and/or replace power steering hoses and fittings. | 4B15 | P-2 |
| C1001 | Test power steering pressure; determine needed action. | 4B20 | P-2 |
| C181 | Remove and reinstall power steering pump. | 4B13 | P-2 |
| C699 | Remove and reinstall press fit power steering pump pulley; check pulley and belt alignment. | 4B14 | P-2 |
| Task Sheet Group Title Page | E. Suspension and Steering Systems: Steering Gear Service | ||
| C883 | Inspect rack and pinion steering gear inner tie rod ends (sockets) and bellows boots; replace as needed. | 4B8 | P-1 |
| C882 | Remove and replace rack and pinion steering gear; inspect mounting bushings and brackets. | 4B7 | P-2 |
| Task Sheet Group Title Page | F. Suspension and Steering Systems: Steering Linkage Service | ||
| C184 | Inspect, remove, and/or replace pitman arm, relay (centerlink/intermediate) rod, idler arm, mountings, and steering linkage damper. | 4B16 | P-2 |
| C185 | Inspect, replace, and/or adjust tie rod ends (sockets), tie rod sleeves, and clamps. | 4B17 | P-1 |
| Task Sheet Group Title Page | G. Suspension and Steering Systems: Steering Gear Diagnosis | ||
| C884 | Diagnose power steering gear (non-rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine needed action. | 4B4 | P-2 |
| C880 | Diagnose power steering gear (rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine needed action. | 4B5 | P-2 |
| Task Sheet Group Title Page | H. Suspension and Steering Systems: Steering Column Service | ||
| C168 | Disable and enable supplemental restraint system (SRS); verify indicator lamp operation. | 4B1 | P-1 |
| C169 | Remove and replace steering wheel; center/time supplemental restraint system (SRS) coil (clock spring). | 4B2 | P-1 |
| C173 | Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; determine needed action. | 4B6 | P-2 |
| C170 | Diagnose steering column noises, looseness, and binding concerns (including tilt/telescoping mechanisms); determine needed action. | 4B3 | P-2 |
| Task Sheet Group Title Page | I. Suspension and Steering Systems: Front Suspension Service-Long and Short Arm | ||
| C793 | Inspect, remove, and/or replace front/rear stabilizer bar (sway bar) bushings, brackets, and links. | 4C9 | P-3 |
| C193 | Inspect, remove, and/or replace short and long arm suspension system coil springs and spring insulators. | 4C7 | P-3 |
| C192 | Inspect, remove, and/or replace steering knuckle assemblies. | 4C6 | P-3 |
| C790 | Inspect, remove, and/or replace upper and lower control arms, bushings, shafts, and rebound bumpers. | 4C3 | P-3 |
| C791 | Inspect, remove, and/or replace strut rods and bushings. | 4C4 | P-3 |
| C792 | Inspect, remove, and/or replace upper and/or lower ball joints (with or without wear indicators). | 4C5 | P-2 |
| Task Sheet Group Title Page | J. Suspension and Steering Systems: Front Suspension Service-Strut and Torsion Bar | ||
| C794 | Inspect, remove, and/or replace strut cartridge or assembly, strut coil spring, insulators (silencers), and upper strut bearing mount. | 4C10 | P-3 |
| C934 | Inspect, remove, and/or replace track bar, strut rods/radius arms, and related mounts and bushings. | 4C11 | P-3 |
| C194 | Inspect, remove, and/or replace torsion bars and mounts. | 4C8 | P-3 |
| Task Sheet Group Title Page | K. Suspension and Steering Systems: Front-Suspension Diagnosis | ||
| C852 | Diagnose short and long arm suspension system noises, body sway, and uneven ride height concerns; determine needed action. | 4C1 | P-1 |
| C853 | Diagnose strut suspension system noises, body sway, and uneven ride height concerns; determine needed action. | 4C2 | P-1 |
| Task Sheet Group Title Page | L. Suspension and Steering Systems: Rear Suspension Service | ||
| C202 | Inspect, remove, and/or replace shock absorbers; inspect mounts and bushings. | 4D1 | P-1 |
| C854 | Inspect rear suspension system leaf spring(s), spring insulators (silencers), shackles, brackets, bushings, center pins/bolts, and mounts. | 4C12 | P-1 |
| C203 | Remove, inspect, and service and/or replace front and rear wheel bearings. | 4D2 | P-1 |
| Task Sheet Group Title Page | M. Suspension and Steering Systems: Electronically Controlled Steering and Suspension Service | ||
| C186 | Inspect, test and diagnose electrically assisted power steering systems (including using a scan tool); determine needed action. | 4B18 | P-2 |
| C931 | Describe the function of suspension and steering control systems and components (i.e. active suspension, and stability control). | 4D3 | P-3 |
| C551 | Identify hybrid vehicle power steering system electrical circuits and safety precautions. | 4B19 | P-2 |
| Task Sheet Group Title Page | N. Suspension and Steering Systems: Wheel Alignment Diagnosis, Adjustment, and Repair | ||
| C206 | Diagnose vehicle wander, drift, pull, hard steering, bump steer, memory steer, torque steer, and steering return concerns; determine needed action. | 4E1 | P-1 |
| C617 | Perform prealignment inspection; measure vehicle ride height; determine needed action. | 4E2 | P-1 |
| C618 | Prepare vehicle for wheel alignment on the alignment machine; perform four-wheel alignment by checking and adjusting front and rear wheel caster, camber, and toe as required; center steering wheel. | 4E3 | P-1 |
| C213 | Check toe-out-on-turns (turning radius); determine needed action. | 4E4 | P-2 |
| C214 | Check steering axis inclination (SAI) and included angle; determine needed action. | 4E5 | P-2 |
| C216 | Check rear wheel thrust angle; determine needed action. | 4E6 | P-1 |
| C217 | Check for front wheel setback; determine needed action. | 4E7 | P-2 |
| C795 | Check front and/or rear cradle (subframe) alignment; determine needed action. | 4E8 | P-3 |
| C940 | Reset steering angle sensor. | 4E9 | P-2 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. Brakes: Vehicle, Customer, and Service Information | ||
| C230 | Research vehicle service information including fluid type, vehicle service history, service precautions, and technical service bulletins. | 5A2 | P-1 |
| C229 | Identify and interpret brake system concerns; determine needed action. | 5A1 | P-1 |
| C944 | Describe procedure for performing a road test to check brake system operation, including an anti-lock brake system (ABS). | 5A3 | P-1 |
| NN05 | Demonstrate the use of the three Cs (concern, cause, and correction). | N/A | N/A |
| Task Sheet Group Title Page | B. Brakes: Fluid Testing and Maintenance | ||
| C239 | Select, handle, store, and fill brake fluids to proper level; use proper fluid type per manufacturer specification. | 5B9 | P-1 |
| C625 | Test brake fluid for contamination. | 5B13 | P-1 |
| C705 | Bleed and/or flush brake system. | 5B12 | P-1 |
| Task Sheet Group Title Page | C. Brakes: Master Cylinder Testing and Service | ||
| C622 | Measure brake pedal height, travel, and free play (as applicable); determine needed action. | 5B2 | P-1 |
| C704 | Check master cylinder for internal/external leaks and proper operation; determine needed action. | 5B3 | P-1 |
| C235 | Remove, bench bleed, and reinstall master cylinder. | 5B4 | P-1 |
| C556 | Measure and adjust master cylinder pushrod length. | 5E5 | P-3 |
| Task Sheet Group Title Page | D. Brakes: Brake Lines and Hoses Inspection and Repair | ||
| C237 | Inspect brake lines, flexible hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging, wear; and loose fittings/supports; determine needed action. | 5B6 | P-1 |
| C623 | Replace brake lines, hoses, fittings, and supports. | 5B7 | P-2 |
| C624 | Fabricate brake lines using proper material and flaring procedures (double flare and ISO types). | 5B8 | P-2 |
| Task Sheet Group Title Page | E. Brakes: Disc Brake Inspection, Maintenance, and Service | ||
| C708 | Diagnose poor stopping, noise, vibration, pulling, grabbing, dragging, or pulsation concerns; determine needed action. | 5D1 | P-1 |
| C802 | Remove and clean caliper assembly; inspect for leaks, and damage, and wear; determine needed action. | 5D2 | P-1 |
| C803 | Inspect caliper mounting and slides/pins for proper operation, wear, and damage; determine needed action. | 5D3 | P-1 |
| C632 | Check brake pad wear indicator; determine needed action. | 5D11 | P-1 |
| C627 | Remove, inspect, and/or replace brake pads and retaining hardware; determine needed action. | 5D4 | P-1 |
| C805 | Lubricate and reinstall caliper, brake pads, and related hardware; seat brake pads and inspect for leaks. | 5D5 | P-1 |
| C631 | Retract and re-adjust caliper piston on an integrated parking brake system. | 5D10 | P-2 |
| C948 | Describe importance of operating vehicle to burnish/break-in replacement brake pads according to manufacturer's recommendations. | 5D12 | P-1 |
| Task Sheet Group Title Page | F. Brakes: Rotor Inspection and Service | ||
| C628 | Clean and inspect rotor and mounting surface; measure rotor thickness, thickness variation, and lateral runout; determine needed action. | 5D6 | P-1 |
| C806 | Remove and reinstall/replace rotor. | 5D7 | P-1 |
| C630 | Refinish rotor off vehicle; measure final rotor thickness and compare with specification. | 5D9 | P-1 |
| C629 | Refinish rotor on vehicle; measure final rotor thickness and compare with specification. | 5D8 | P-1 |
| C274 | Inspect and replace wheel studs. | 5F8 | P-1 |
| Task Sheet Group Title Page | G. Brakes: Drum Brake Inspection, Maintenance, and Service | ||
| C706 | Diagnose poor stopping, noise, vibration, pulling, grabbing, dragging or pedal pulsation concerns; determine needed action. | 5C1 | P-1 |
| C800 | Remove, clean, and inspect brake drum; measure brake drum diameter; determine serviceability. | 5C2 | P-1 |
| C626 | Refinish brake drum and measure final drum diameter; compare with specifications. | 5C3 | P-1 |
| C248 | Remove, clean, inspect, and/or replace brake shoes, springs, pins, clips, levers, adjusters/self-adjusters, other related brake hardware, and backing support plates; lubricate and reassemble. | 5C4 | P-1 |
| C707 | Inspect wheel cylinders for leaks and proper operation; remove and replace as needed. | 5C5 | P-2 |
| C801 | Pre-adjust brake shoes and parking brake; install brake drums or drum/hub assemblies and wheel bearings; make final checks and adjustments. | 5C6 | P-1 |
| C251 | Install wheel and torque lug nuts. | 5A4 | P-1 |
| Task Sheet Group Title Page | H. Brakes: Parking Brake Inspection and Service | ||
| C811 | Check parking brake system and components for wear, binding, and corrosion; clean, lubricate, adjust, and/or replace as needed. | 5F3 | P-1 |
| C633 | Check parking brake operation and parking brake indicator light system operation; determine needed action. | 5F4 | P-1 |
| Task Sheet Group Title Page | I. Brakes: Power Booster Inspection | ||
| C807 | Check brake pedal travel with, and without, engine running to verify proper power booster operation. | 5E1 | P-2 |
| C808 | Identify components of the brake power assist system (vacuum and hydraulic); check vacuum supply (manifold or auxiliary pump) to vacuum-type power booster. | 5E2 | P-1 |
| C809 | Inspect vacuum-type power booster unit for leaks; inspect the check valve for proper operation; determine needed action. | 5E3 | P-1 |
| C581 | Inspect and test hydraulically assisted power brake system for leaks and proper operation; determine needed action. | 5E4 | P-3 |
| Task Sheet Group Title Page | J. Brakes: Hydraulic System Diagnosis and Service | ||
| C894 | Diagnose pressure concerns in the brake system using hydraulic principles (Pascal’s Law). | 5B1 | P-1 |
| C236 | Diagnose poor stopping, pulling or dragging concerns caused by malfunctions in the hydraulic system; determine needed action. | 5B5 | P-1 |
| Task Sheet Group Title Page | K. Brakes: Wheel Bearing Inspection, Maintenance, and Service | ||
| C810 | Remove, clean, inspect, repack, and install wheel bearings; replace seals; install hub and adjust bearings. | 5F2 | P-2 |
| C273 | Replace wheel bearing and race. | 5F6 | P-3 |
| C275 | Remove, reinstall, and/or replace sealed wheel bearing assembly. | 5F7 | P-1 |
| C267 | Diagnose wheel bearing noises, wheel shimmy, and vibration concerns; determine needed action. | 5F1 | P-1 |
| Task Sheet Group Title Page | L. Brakes: Brake Warning Light and Stop Light Inspection and Service | ||
| C272 | Check operation of brake stop light system. | 5F5 | P-1 |
| C947 | Identify components of hydraulic brake warning light system. | 5B11 | P-2 |
| C242 | Inspect, test, and/or replace components of brake warning light system. | 5B10 | P-3 |
| Task Sheet Group Title Page | M. Brakes: Electronic Brake Control Systems | ||
| C634 | Identify and inspect electronic brake control system components (ABS, TCS, ESC); determine needed action. | 5G1 | P-1 |
| C950 | Describe the operation of a regenerative braking system. | 5G2 | P-3 |
| Task Sheet Group Title Page | N. Brakes: Electronic Brake Control Hydraulic Service | ||
| C812 | Depressurize high-pressure components of an electronic brake control system. | 5G5 | P-2 |
| C637 | Bleed the electronic brake control system hydraulic circuits. | 5G6 | P-1 |
| Task Sheet Group Title Page | O. Brakes: Electronic Brake Control Diagnosis | ||
| C635 | Diagnose poor stopping, wheel lock-up, abnormal pedal feel, unwanted application, and noise concerns associated with the electronic brake control system; determine needed action. | 5G3 | P-2 |
| C636 | Diagnose electronic brake control system electronic control(s) and components by retrieving diagnostic trouble codes, and/or using recommended test equipment; determine needed action. | 5G4 | P-2 |
| C639 | 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). | 5G7 | P-2 |
| C813 | Diagnose electronic brake control system braking concerns caused by vehicle modifications (tire size, curb height, final drive ratio, etc.). | 5G8 | P-1 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. Electrical/Electronic Systems: Vehicle, Customer, and Service Information | ||
| C286 | Research vehicle service information including vehicle service history, service precautions, and technical service bulletins. | 6A1 | P-1 |
| C951 | Demonstrate knowledge of electrical/electronic series, parallel, and series-parallel circuits using principles of electricity (Ohm's Law). | 6A2 | P-1 |
| NN06 | Demonstrate the use of the three Cs (concern, cause, and correction). | N/A | N/A |
| Task Sheet Group Title Page | B. Electrical/Electronic Systems: Battery Diagnosis and Service | ||
| C302 | Perform battery state-of-charge test; determine needed action. | 6B1 | P-1 |
| C818 | Confirm proper battery capacity for vehicle application; perform battery capacity and load test; determine needed action. | 6B2 | P-1 |
| C645 | Identify electrical/electronic modules, security systems, radios, and other accessories that require reinitialization or code entry after reconnecting vehicle battery. | 6B8 | P-1 |
| C304 | Maintain or restore electronic memory functions. | 6B3 | P-1 |
| C644 | Inspect and clean battery; fill battery cells; check battery cables, connectors, clamps, and hold-downs. | 6B4 | P-1 |
| C819 | Perform slow/fast battery charge according to manufacturer's recommendations. | 6B5 | P-1 |
| C820 | Jump-start vehicle using jumper cables and a booster battery or an auxiliary power supply. | 6B6 | P-1 |
| C817 | Diagnose the cause(s) of excessive key-off battery drain (parasitic draw); determine needed action. | 6A8 | P-1 |
| NN12 | Chesney Parasitic Load test | N/A | N/A |
| Task Sheet Group Title Page | C. Electrical/Electronic Systems: Starting System Diagnosis and Repair | ||
| C309 | Perform starter current draw tests; determine needed action. | 6C1 | P-1 |
| C310 | Perform starter circuit voltage drop tests; determine needed action. | 6C2 | P-1 |
| C313 | Inspect and test switches, connectors, and wires of starter control circuits; determine needed action. | 6C5 | P-2 |
| C311 | Inspect and test starter relays and solenoids; determine needed action. | 6C3 | P-2 |
| C312 | Remove and install starter in a vehicle. | 6C4 | P-1 |
| C314 | Differentiate between electrical and engine mechanical problems that cause a slow-crank or no-crank condition. | 6C6 | P-2 |
| C1002 | Demonstrate knowledge of an automatic idle-stop/start-stop system. | 6C7 | P-2 |
| Task Sheet Group Title Page | D. Electrical/Electronic Systems: Charging System Diagnosis and Repair | ||
| C317 | Inspect, adjust, and/or replace generator (alternator) drive belts; check pulleys and tensioners for wear; check pulley and belt alignment. | 6D3 | P-1 |
| C315 | Perform charging system output test; determine needed action. | 6D1 | P-1 |
| C319 | Perform charging circuit voltage drop tests; determine needed action. | 6D5 | P-1 |
| C318 | Remove, inspect, and/or replace generator (alternator). | 6D4 | P-1 |
| C316 | Diagnose (troubleshoot) charging system for the cause of undercharge, no-charge, or overcharge conditions. | 6D2 | P-1 |
| Task Sheet Group Title Page | E. Electrical/Electronic Systems: Lighting System Diagnosis and Repair | ||
| C564 | Identify system voltage and safety precautions associated with high intensity discharge headlights. | 6E4 | P-2 |
| C956 | Inspect interior and exterior lamps and sockets including headlights and auxiliary lights (fog lights/driving lights); replace as needed. | 6E2 | P-1 |
| C321 | Aim headlights. | 6E3 | P-2 |
| C320 | Diagnose (troubleshoot) the cause of brighter-than-normal, intermittent, dim, or no light operation; determine needed action. | 6E1 | P-1 |
| Task Sheet Group Title Page | F. Electrical/Electronic Systems: Fundamentals | ||
| C952 | Use wiring diagrams during the diagnosis (troubleshooting) of electrical/electronic circuit problems. | 6A7 | P-1 |
| C641 | Demonstrate the proper use of a digital multimeter (DMM) when measuring source voltage, voltage drop, (including grounds), current flow, and resistance. | 6A3 | P-1 |
| C291 | Demonstrate proper use of a test light on an electrical circuit. | 6A5 | P-1 |
| C295 | Use fused jumper wires to check operation of electrical circuits. | 6A6 | P-1 |
| C298 | Inspect and test fusible links, circuit breakers, and fuses; determine needed action. | 6A9 | P-1 |
| C296 | Demonstrate knowledge of the causes and effects from shorts, grounds, opens, and resistance problems in electrical/electronic circuits. | 6A4 | P-1 |
| C642 | Check electrical/electronic circuit waveforms; interpret readings and determine needed repairs. | 6A11 | P-2 |
| Task Sheet Group Title Page | G. Electrical/Electronic Systems: Wire Repair | ||
| C299 | Inspect, test, repair, and/or replace components, connectors, terminals, harnesses, and wiring in electrical/electronic systems (including solder repairs); determine needed action. | 6A10 | P-1 |
| C955 | Repair data bus wiring harness. | 6A12 | P-1 |
| Task Sheet Group Title Page | H. Electrical/Electronic Systems: Horn and Wiper/Washer Diagnosis and Repair | ||
| C327 | Diagnose operation of safety systems and related circuits (such as: horn, airbags, seat belt pretensioners, occupancy classification, wipers, washers, speed control/collision avoidance, heads-up display, park assist, and back-up camera); determine needed repairs. | 6G4 | P-1 |
| Task Sheet Group Title Page | I. Electrical/Electronic Systems: Gauges/ Warning Devices, and Driver Information Systems Diagnosis and Repair | ||
| C646 | Inspect and test gauges and gauge sending units for causes of abnormal gauge readings; determine needed action. | 6F1 | P-2 |
| C325 | Diagnose (troubleshoot) the cause of incorrect operation of warning devices and other driver information systems; determine needed action. | 6F2 | P-2 |
| C1003 | Reset maintenance indicators as required. | 6F3 | P-2 |
| Task Sheet Group Title Page | J. Electrical/Electronic Systems: Accessories Diagnosis and Repair | ||
| C330 | Diagnose operation of comfort and convenience accessories and related circuits (such as: power window, power seats, pedal height, power locks, trunk locks, remote start, moon roof, sun roof, sun shade, remote keyless entry, voice activation, steering wheel controls, back-up camera, park assist, cruise control, and auto dimming headlamps); determine needed repairs. | 6G1 | P-2 |
| Task Sheet Group Title Page | K. Electrical/Electronic Systems: Accessories Diagnosis and Repair (Entertainment, etc) | ||
| C336 | Diagnose operation of entertainment and related circuits (such as: radio, DVD, remote CD changer, navigation, amplifiers, speakers, antennas, and voice-activated accessories); determine needed repairs. | 6G3 | P-3 |
| Task Sheet Group Title Page | L. Electrical/Electronic Systems: Accessories Diagnosis and Repair (Network, etc) | ||
| C338 | Diagnose body electronic system circuits using a scan tool; check for module communication errors (data communication bus systems); determine needed action. | 6G5 | P-2 |
| C340 | Diagnose operation of security/anti-theft systems and related circuits (such as: theft deterrent, door locks, remote keyless entry, remote start, and starter/fuel disable); determine needed repairs. | 6G2 | P-2 |
| C649 | Describe the process for software transfers, software updates, or reprogramming of electronic modules. | 6G6 | P-2 |
| Task Sheet Group Title Page | M. Electrical/Electronic Systems: Hybrid Electrical Safety | ||
| C561 | Identify safety precautions for high voltage systems on electric, hybrid, hybrid-electric, and diesel vehicles. | 6B7 | P-2 |
| C874 | Identify hybrid vehicle auxiliary (12v) battery service, repair and test procedures. | 6B9 | P-2 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. HVAC: Vehicle, Customer, and Service Information | ||
| C342 | Research vehicle service information including refrigerant/oil type, vehicle service history, service precautions, and technical service bulletins. | 7A2 | P-1 |
| C341 | Identify and interpret heating and air conditioning problems; determine needed action. | 7A1 | P-1 |
| C827 | Identify hybrid vehicle A/C system electrical circuits and the service/safety precautions. | 7B4 | P-2 |
| NN07 | Demonstrate use of the three Cs: concern, cause, and correction. | N/A | N/A |
| Task Sheet Group Title Page | B. HVAC: Preliminary Testing | ||
| C824 | Performance test A/C system; identify problems. | 7A3 | P-1 |
| C825 | Identify abnormal operating noises in the A/C system; determine needed action. | 7A4 | P-2 |
| C356 | Inspect for proper A/C condenser airflow; determine needed action. | 7B7 | P-1 |
| C830 | Inspect evaporator housing water drain; perform needed action. | 7B10 | P-1 |
| C655 | Identify the source of HVAC system odors. | 7D7 | P-2 |
| Task Sheet Group Title Page | C. HVAC: Refrigerant Recovery, Recycling, and Handling | ||
| C650 | Identify refrigerant type; select and connect proper gauge set/test equipment; record temperature and pressure readings. | 7A5 | P-1 |
| C347 | Leak test A/C system; determine needed action. | 7A6 | P-1 |
| C836 | Identify A/C system refrigerant; test for sealants; recover, evacuate, and charge A/C system; add refrigerant oil as required. | 7E2 | P-1 |
| C657 | Recycle, label, and store refrigerant. | 7E3 | P-1 |
| C652 | Determine recommended oil and oil capacity for system application. | 7A8 | P-1 |
| C651 | Inspect condition of refrigerant oil removed from the A/C system; determine needed action. | 7A7 | P-2 |
| C863 | Determine need for an additional A/C system filter; perform needed action. | 7B5 | P-3 |
| Task Sheet Group Title Page | D. HVAC: Refrigeration System Component Diagnosis and Repair | ||
| C653 | Inspect, remove, and/or replace A/C compressor drive belts, pulleys, tensioners and visually inspect A/C components for signs of leaks; determine needed action. | 7B1 | P-1 |
| C654 | Inspect, test, service, and/or replace A/C compressor clutch components and/or assembly; check compressor clutch air gap; adjust as needed. | 7B2 | P-2 |
| C826 | Remove, inspect, reinstall, and/or replace A/C compressor and mountings; determine recommended oil type and quantity. | 7B3 | P-2 |
| C355 | Remove and inspect A/C system mufflers, hoses, lines, fittings, O-rings, seals, and service valves; perform needed action. | 7B6 | P-2 |
| C829 | Remove, inspect, and reinstall receiver/drier or accumulator/drier; determine recommended oil type and quantity. | 7B8 | P-2 |
| C873 | Remove, inspect, and install expansion valve or orifice (expansion) tube. | 7B9 | P-1 |
| C656 | Perform correct use and maintenance of refrigerant handling equipment according to equipment manufacturer’s standards. | 7E1 | P-1 |
| C831 | Determine procedure to remove and reinstall evaporator; determine required oil type and quantity. | 7B12 | P-2 |
| C832 | Remove, inspect, reinstall, and/or replace condenser; determine required oil type and quantity. | 7B13 | P-2 |
| Task Sheet Group Title Page | E. HVAC: Heating, Ventilation, and Engine Cooling Systems Diagnosis and Repair | ||
| C362 | Diagnose temperature control problems in the HVAC system; determine needed action. | 7C3 | P-2 |
| C364 | Inspect engine cooling and heater system hoses and pipes; perform needed action. | 7C1 | P-1 |
| C370 | Inspect and test heater control valve(s); perform needed action. | 7C2 | P-2 |
| C373 | Inspect and test HVAC system blower motors, resistors, switches, relays, wiring, and protection devices; determine needed action. | 7D1 | P-1 |
| C864 | Determine procedure to remove, inspect, reinstall, and/or replace heater core. | 7C4 | P-2 |
| Task Sheet Group Title Page | F. HVAC: Operating Systems and Related Controls Diagnosis and Repair | ||
| C866 | Check operation of automatic or semi-automatic HVAC control systems; determine needed action. | 7D8 | P-2 |
| C566 | Using a scan tool, observe and record related HVAC data and trouble codes. | 7A9 | P-3 |
| C350 | Diagnose A/C system conditions that cause the protection devices (pressure, thermal, and/or control module) to interrupt system operation; determine needed action. | 7B11 | P-2 |
| C374 | Diagnose A/C compressor clutch control systems; determine needed action. | 7D2 | P-2 |
| C835 | Diagnose malfunctions in the vacuum, mechanical, and electrical components and controls of the heating, ventilation, and A/C (HVAC) system; determine needed action. | 7D3 | P-2 |
| C376 | Inspect and test HVAC system control panel assembly; determine needed action. | 7D4 | P-3 |
| C865 | Inspect and test HVAC system control cables, motors, and linkages; perform needed action. | 7D5 | P-3 |
| C378 | Inspect HVAC system ducts, doors, hoses, cabin filters, and outlets; perform needed action. | 7D6 | P-1 |
| CDX Tasksheet Number | NATEF 2017 Tasksheet Title | 2017 MAST NATEF | |
|---|---|---|---|
| Reference number | Priority Level | ||
| Task Sheet Group Title Page | A. Vehicle, Customer, and Service Information | ||
| C387 | Research vehicle service information including vehicle service history, service precautions, and technical service bulletins. | 8A2 | P-1 |
| NN08 | Demonstrate the use of the three Cs (concern, cause, and correction). | N/A | N/A |
| C386 | Identify and interpret engine performance concerns; determine needed action. | 8A1 | P-1 |
| Task Sheet Group Title Page | B. Engine Performance: Mechanical Engine Testing | ||
| C392 | Perform engine absolute manifold pressure tests (vacuum/boost); determine needed action. | 8A5 | P-1 |
| C393 | Perform cylinder power balance test; determine needed action. | 8A6 | P-2 |
| C709 | Perform cylinder cranking and running compression tests; determine needed action. | 8A7 | P-1 |
| C395 | Perform cylinder leakage test; determine needed action. | 8A8 | P-1 |
| C390 | Diagnose abnormal engine noises or vibration concerns; determine needed action. | 8A3 | P-3 |
| Task Sheet Group Title Page | C. Engine Performance: Camshaft Timing | ||
| C400 | Verify correct camshaft timing including engines equipped with variable valve timing systems (VVT). | 8A11 | P-1 |
| Task Sheet Group Title Page | D. Engine Performance: Engine Operating Temperature | ||
| C398 | Verify engine operating temperature; determine needed action. | 8A10 | P-1 |
| Task Sheet Group Title Page | E. Engine Performance: Ignition System | ||
| C960 | Remove and replace spark plugs; inspect secondary ignition components for wear and damage. | 8C4 | P-1 |
| C663 | Inspect and test crankshaft and camshaft position sensor(s); determine needed action. | 8C2 | P-1 |
| C664 | Inspect, test, and/or replace ignition control module, powertrain/engine control module; reprogram/initialize as needed. | 8C3 | P-3 |
| C712 | Diagnose (troubleshoot) ignition system related problems such as no-starting, hard starting, engine misfire, poor driveability, spark knock, power loss, poor mileage, and emissions concerns; determine needed action. | 8C1 | P-2 |
| C841 | Access and use service information to perform step-by-step (troubleshooting) diagnosis. | 8B2 | P-1 |
| Task Sheet Group Title Page | F. Engine Performance: Fuel and Induction System Testing | ||
| C868 | Inspect and test fuel pump(s) and pump control system for pressure, regulation, and volume; perform needed action. | 8D3 | P-1 |
| C420 | Check fuel for contaminants; determine needed action. | 8D2 | P-2 |
| C842 | Inspect, test, and/or replace fuel injectors. | 8D7 | P-2 |
| C422 | Replace fuel filter(s) where applicable. | 8D4 | P-2 |
| C962 | Inspect, service, or replace air filters, filter housings, and intake duct work. | 8D5 | P-1 |
| C424 | Inspect throttle body, air induction system, intake manifold, and gaskets for vacuum leaks and/or unmetered air. | 8D6 | P-2 |
| C665 | Verify idle control operation. | 8D8 | P-1 |
| C713 | Diagnose (troubleshoot) hot or cold no-starting, hard starting, poor driveability, incorrect idle speed, poor idle, flooding, hesitation, surging, engine misfire, power loss, stalling, poor mileage, dieseling, and emissions problems; determine needed action. | 8D1 | P-2 |
| Task Sheet Group Title Page | G. Engine Performance: Exhaust Analysis | ||
| C714 | Diagnose emission and driveability concerns caused by catalytic converter system; determine needed action. | 8E6 | P-2 |
| C391 | Diagnose the cause of excessive oil consumption, coolant consumption, unusual exhaust color, odor, and sound; determine needed action. | 8A4 | P-2 |
| Task Sheet Group Title Page | H. Engine Performance: Exhaust System Testing | ||
| C963 | Inspect condition of exhaust system hangers, brackets, clamps, and heat shields; determine needed action. | 8D10 | P-1 |
| C428 | Inspect integrity of the exhaust manifold, exhaust pipes, muffler(s), catalytic converter(s), resonator(s), tail pipe(s), and heat shields; perform needed action. | 8D9 | P-1 |
| C965 | Check and refill diesel exhaust fluid (DEF). | 8D12 | P-2 |
| C429 | Perform exhaust system back-pressure test; determine needed action. | 8D11 | P-2 |
| C869 | Test the operation of turbocharger/supercharger systems; determine needed action. | 8D13 | P-2 |
| Task Sheet Group Title Page | I. Engine Performance: Powertrain Control System Testing | ||
| C661 | Describe the use of OBD monitors for repair verification. | 8B4 | P-1 |
| C659 | Retrieve and record diagnostic trouble codes (DTC), OBD monitor status, and freeze frame data; clear codes when applicable. | 8B1 | P-1 |
| C867 | Perform active tests of actuators using a scan tool; determine needed action. | 8B3 | P-1 |
| C840 | 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 needed action. | 8B7 | P-2 |
| Task Sheet Group Title Page | J. Engine Performance: PCV System Testing | ||
| C432 | Inspect, test, service, and/or replace positive crankcase ventilation (PCV) filter/breather, valve, tubes, orifices, and hoses; perform needed action. | 8E2 | P-2 |
| C666 | Diagnose oil leaks, emissions, and driveability concerns caused by the positive crankcase ventilation (PCV) system; determine needed action. | 8E1 | P-3 |
| Task Sheet Group Title Page | K. Engine Performance: EGR System Testing | ||
| C667 | Diagnose emissions and driveability concerns caused by the exhaust gas recirculation (EGR) system; inspect, test, service, and/or replace electrical/electronic sensors, controls, wiring, tubing, exhaust passages, vacuum/pressure controls, filters, and hoses of exhaust gas recirculation (EGR) systems; determine needed action. | 8E3 | P-2 |
| Task Sheet Group Title Page | L. Engine Performance: Evaporative Emissions System Testing | ||
| C844 | Diagnose emissions and driveability concerns caused by the evaporative emissions control (EVAP) system; determine needed action. | 8E5 | P-1 |
| Task Sheet Group Title Page | M. Engine Performance: Secondary Air Injection System Testing | ||
| C843 | Diagnose emissions and driveability concerns caused by the secondary air injection system; inspect, test, repair, and/or replace electrical/electronically-operated components and circuits of secondary air injection systems; determine needed action. | 8E4 | P-2 |
| Task Sheet Group Title Page | N. Engine Performance: General Driveability and Emission Diagnosis | ||
| C710 | Diagnose engine mechanical, electrical, electronic, fuel, and ignition concerns; determine needed action. | 8A9 | P-2 |
| C660 | Diagnose the causes of emissions or driveability concerns with stored or active diagnostic trouble codes (DTC); obtain, graph, and interpret scan tool data. | 8B5 | P-1 |
| C711 | Diagnose emissions or driveability concerns without stored or active diagnostic trouble codes; determine needed action. | 8B6 | P-1 |
| C668 | Interpret diagnostic trouble codes (DTCs) and scan tool data related to the emissions control systems; determine needed action. | 8E7 | P-2 |
| C409 | Diagnose driveability and emissions problems resulting from malfunctions of interrelated systems (cruise control, security alarms, suspension controls, traction controls, HVAC, automatic transmissions, non-OEM-installed accessories, or similar systems); determine needed action. | 8B8 | P-2 |