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ASE 0: Foundation Studies

CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF Priority
C451 Identify general shop rules and procedures. P-1
C452 Utilize safe procedures for handling tools and equipment. P-1
C453 Identify and use proper placement of floor jacks and jack stands. P-1
C454 Identify and use proper procedures for safe lift operation. P-1
C455 Utilize proper ventilation procedures for working within the lab/shop area. P-1
C456 Identify marked safety areas. P-1
C457 Identify the location and use of fire blankets. P-1
C458 Identify the types and location of fire extinguishers; demonstrate a knowledge of the procedures for using fire extinguishers. P-1
C459 Identify the location and use of eye wash stations. P-1
C460 Identify the location of posted evacuation routes. P-1
C461 Comply with the safe use of safety glasses, gloves, shoes, during lab/shop activities. P-1
C462 Identify and wear appropriate clothing for lab/shop activities. P-1
C463 Comply with appropriate hairstyles for lab/shop activities. P-1
C464 Demonstrate knowledge of safety aspects of supplemental restraint systems (SRS) and antilock braking systems (ABS). P-1
C465 Locate and demonstrate knowledge of material safety data sheets (MSDS). P-1
C466 Identify tools and their usage in automotive applications. P-1
C467 Identify standard and metric designation. P-1
C468 Demonstrate safe handling and use of appropriate tools. P-1
C469 Demonstrate proper cleaning, storage, and maintenance of tools and equipment. P-1
C471 Proper vehicle identification information, Define the use and purpose of the VIN, engine numbers and data code, Locate VIN, Apply knowledge of VIN information. P-1
C472 Identify information needed and the service requested on a repair order. P-1
C473 Identify purpose and demonstrate proper use of fender covers, mats. P-1
C474 Demonstrate use of 3 C’s (concern, cause and correction). P-1
C475 Review vehicle service history. P-1
C476 Ensure vehicle is prepared to return to customer per school/company policy (floor mats, steering wheel cover etc). P-1
C504 Demonstrate understanding of the correct methods of storage and disposal. P-1
C505 Recognize different vehicle types and body components. P-1
C508 Associated Studies Tasksheet - Workshop Key Skills: Automotive servicing procedures, parts and accounting calculations. P-1
C509 Associated Studies Tasksheet - Workshop Key Skills: Identify and document safety related vehicle workshop practices. P-1
C510 Associated Studies Tasksheet - Workshop Key Skills: Identify and document compliance and customer related vehicle workshop practices. P-1
C511 Associated Studies Tasksheet: Vehicle Workshop Practices: Research and document organizational structures. P-1
C513 Identify and agree customer vehicle needs. P-1
C590 Complete a job sheet. P-1
C591 Complete an inspection report. P-1
C592 Complete an equipment defect report. P-1
C593 Complete an accident report. P-1

ASE 1: Engine Repair - (Top)

A. General Engine Diagnosis; Removal and Reinstallation (R & R)
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C885 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 1A1 P-1
C001 Identify and interpret engine concern; determine necessary action. 1A2 P-1
C002 Research applicable vehicle and service information, such as internal engine operation, vehicle service history, service precautions, and technical service bulletins. 1A3 P-1
C669 Locate and interpret vehicle and major component identification numbers. 1A4 P-1
C004 Inspect engine assembly for fuel, oil, coolant, and other leaks; determine necessary action. 1A5 P-1
C005 Diagnose engine noises and vibrations; determine necessary action. 1A6 P-2
C670 Diagnose the cause of excessive oil consumption, coolant consumption, unusual engine exhaust color and odor; determine necessary action. 1A7 P-2
C007 Perform engine vacuum tests; determine necessary action. 1A8 P-1
C715 Perform cylinder power balance tests; determine necessary action. 1A9 P-2
C716 Perform cylinder cranking and running compression tests; determine necessary action. 1A10 P-1
C717 Perform cylinder leakage tests; determine necessary action. 1A11 P-1
C671 Remove and reinstall engine in an OBDII or newer vehicle; reconnect all attaching components and restore the vehicle to running condition. 1A12 P-2
C541 Install engine covers using gaskets, seals and sealers as required. 1A13 P-1
C886 Perform common fastener and thread repair to include: remove broken bolt, restore internal and external threads, and repair internal threads with thread insert. 1A14 P-1
C596 Inspect, remove and replace engine mounts. 1A15 P-2
B. Cylinder Head and Valve Train Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C673 Remove cylinder head; inspect gasket condition; install cylinder head and gasket; tighten according to manufacturer’s specifications and procedures. 1B1 P-1
C674 Clean and visually inspect a cylinder headfor cracks; check gasket surface areas for warpage and surface finish; check passage condition. 1B2 P-1
C718 Inspect valve springs for squareness and free height comparison; determine necessary action. 1B3 P-3
C675 Replace valve stem seals on an assembled engine; inspect valve spring retainers, locks/keepers, and valve lock/keeper grooves; determine necessary action. 1B4 P-3
C719 Inspect valve guides for wear; check valve stem-to-guide clearance; determine necessary action. 1B5 P-3
C720 Inspect valves and valve seats; determine necessary action. 1B6 P-3
C721 Check valve spring assembled height and valve stem height; determine necessary action. 1B7 P-3
C021 Inspect pushrods, rocker arms, rocker arm pivots and shafts for wear, bending, cracks, looseness, and blocked oil passages (orifices); determine necessary action. 1B8 P-2
C722 Inspect valve lifters; determine necessary action. 1B9 P-2
C723 Adjust valves (mechanical or hydraulic lifters). 1B10 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 variable valve timing components). 1B11 P-1
C724 Inspect and/or measure camshaft for runout, journal wear and lobe wear. 1B12 P-2
C027 Inspect camshaft bearing surface for wear, damage, out-of-round, and alignment; determine necessary action. 1B13 P-2
C677 Establish camshaft position sensor indexing. 1B14 P-1
C. Engine Block Assembly Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C029 Disassemble engine block; clean and prepare components for inspection and reassembly. 1C1 P-1
C030 Inspect engine block for visible cracks, passage condition, core and gallery plug condition, and surface warpage; determine necessary action. 1C2 P-2
C726 Inspect and measure cylinder walls/sleeves for damage, wear, and ridges; determine necessary action. 1C3 P-2
C727 Deglaze and clean cylinder walls. 1C4 P-2
C034 Inspect and measure camshaft bearings for wear, damage, out-of-round, and alignment; determine necessary action. 1C5 P-3
C728 Inspect crankshaft forstraightness, 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. 1C6 P-1
C036 Inspect main and connecting rod bearings for damage and wear; determine necessary action. 1C7 P-2
C729 Identify piston and bearing wear patterns that indicate connecting rod alignment and main bearing bore problems; determine necessary action. 1C8 P-3
C678 Inspect and measure piston skirts and ring lands; determine necessary action. 1C9 P-2
C039 Remove and replace piston pin. 1C10 P-3
C597 Determine piston-to-bore clearance. 1C11 P-2
C040 Inspect, measure, and install piston rings. 1C12 P-2
C730 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. 1C13 P-2
C679 Remove, inspect or replace crankshaft vibration damper (harmonic balancer). 1C14 P-2
C731 Assemble engine block. 1C15 P-1
D. Lubrication and Cooling Systems Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C732 Perform oil pressure tests; determine necessary action. 1D1 P-1
C733 Inspect oil pump gears or rotors, housing, pressure relief devices, and pump drive; perform necessary action. 1D2 P-2
C578 Perform cooling system pressure tests; check coolant condition; inspect and test radiator, pressure cap, coolant recovery tank, and hoses; determine necessary action. 1D3 P-1
C734 Inspect, replace, and adjust drive belts, tensioners, and pulleys; check pulley and belt alignment. 1D4 P-1
C048 Inspect and replace engine cooling and heater system hoses. 1D5 P-1
C735 Inspect, test, and replace thermostat and gasket/seal. 1D6 P-1
C050 Test coolant; drain and recover coolant; flush and refill cooling system with recommended coolant; bleed air as required. 1D7 P-1
C680 Inspect, remove and replace water pump. 1D8 P-2
C052 Remove and replace radiator. 1D9 P-2
C053 Inspect, and test fans(s) (electrical or mechanical), fan clutch, fan shroud, and air dams. 1D10 P-1
C871 Inspect auxiliary coolers; determine necessary action. 1D11 P-3
C736 Inspect, test, and replace oil temperature and pressure switches and sensors. 1D12 P-2
C737 Perform oil and filter change. 1D13 P-1
C598 Identify causes of engine overheating. 1D14 P-1
   

ASE 2: Automatic Transmission and Transaxle - (Top)

A. General Transmission and Transaxle Diagnosis
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C738 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 2A1 P-1
C599 Identify and interpret transmission/transaxle concern; differentiate between engine performance and transmission/transaxle concerns; determine necessary action. 2A2 P-1
C681 Research applicable vehicle and service information, such as transmission/transaxle system operation, fluid type, vehicle service history, service precautions, and technical service bulletins. 2A3 P-1
C739 Locate and interpret vehicle and major component identification numbers. 2A4 P-1
C682 Diagnose fluid loss and condition concerns; check fluid level in transmissions with and without dip-stick; determine necessary action. 2A5 P-1
C740 Perform pressure tests (including transmissions/transaxles equipped with electronic pressure control); determine necessary action. 2A6 P-1
C741 Perform stall test; determine necessary action. 2A7 P-3
C063 Perform lock-up converter system tests; determine necessary action. 2A8 P-3
C743 Diagnose noise and vibration concerns; determine necessary action. 2A9 P-2
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
C600 Diagnose electronic transmission/transaxle control systems using appropriate test equipment and service information. 2A13 P-1
B. In-Vehicle Transmission/Transaxle Maintenance and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C683 Inspect, adjust, and replace manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch. 2B1 P-2
C603 Service transmission; perform visual inspection; replace fluid and filters. 2B6 P-1
C748 Inspect and replace external seals, gaskets, and bushings. 2B2 P-2
C601 Inspect, test, adjust, repair, or replace electrical/electronic components and circuits, including computers, solenoids, sensors, relays, terminals, connectors, switches, and harnesses. 2B3 P-1
C075 Diagnose electronic transmission control systems using a scan tool; determine necessary action. 2B4 P-1
C602 Inspect, test, adjust, repair, or replace automatic transmission/ transaxle electrical/electronic components. 2B5 P-2
C. Off-Vehicle Transmission and Transaxle Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
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-1
C684 Disassemble, clean, and inspect transmission/transaxle. 2C2 P-1
C685 Inspect, measure, clean, and replace valve body (includes surfaces, bores, springs, valves, sleeves, retainers, brackets, checkvalves/balls, screens, spacers, and gaskets). 2C3 P-2
C686 Inspect servo and accumulator bores, pistons, seals, pins, springs, and retainers; determine necessary action. 2C4 P2
C083 Assemble transmission/transaxle. 2C5 P-1
C749 Inspect, leak test, and flush or replace transmission/transaxle oil cooler, lines, and fittings. 2C6 P-1
C605 Inspect converter flex (drive) plate, converter attaching bolts, converter pilot, converter pump drive surfaces, converter end play, and crankshaft pilot bore. 2C7 P-2
C687 Install and seat torque converter to engage drive/splines. 2C8 P-1
C688 Inspect, measure, and reseal oil pump assembly and components. 2C9 P-1
C689 Measure transmission/transaxle end play or preload; determine necessary action. 2C10 P-1
C750 Inspect, measure, and replace thrust washers and bearings. 2C11 P-2
C690 Inspect oil delivery circuits, including seal rings, ring grooves, and sealing surface areas, feed pipes, orifices, and check valves/balls. 2C12 P-2
C751 Inspect bushings; determine necessary action. 2C13 P-2
C752 Inspect and measure planetary gear assembly components; determine necessary action. 2C14 P-2
C753 Inspect case bores, passages, bushings, vents, and mating surfaces; determine necessary action. 2C15 P-2
C754 Inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform necessary action. 2C16 P-2
C755 Inspect, measure, repair, adjust or replace transaxle final drive components. 2C17 P-2
C756 Inspect clutch drum, piston, check-balls, springs, retainers, seals, and friction and pressure plates; determine necessary action. 2C18 P-2
C757 Measure clutch pack clearance; determine necessary action. 2C19 P-1
C758 Air test operation of clutch and servo assemblies. 2C20 P-1
C759 Inspect roller and sprag clutch, races, rollers, sprags, springs, cages, and retainers; determine necessary action. 2C21 P-1
C760 Inspect bands and drums; determine necessary action. 2C22 P-2
C606 Describe the operational characteristics of a continuously variable transmission (CVT) 2C23 P-3
C607 Describe the operational characteristics of a hybrid vehicle drive train. 2C24 P-3
 

ASE 3: Manual Drive Train & Axles: 2008 Tasksheets - (Top)

A. General Drive Train Diagnosis
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C761 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 3A1 P-1
C101 Identify and interpret drive train concern; determine necessary action. 3A2 P-1
C102 Research applicable vehicle and service information, such as drive train system operation, fluid type, vehicle service history, service precautions, and technical service bulletins. 3A3 P-1
C762 Locate and interpret vehicle and major component identification numbers. 3A4 P-1
C691 Diagnose fluid loss, level, and condition concerns; determine necessary action. 3A5 P-1
C105 Drain and fill manual transmission/transaxle and final drive unit. 3A6 P-1
B. Clutch Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C106 Diagnose clutch noise, binding, slippage, pulsation, and chatter; determine necessary action. 3B1 P-1
C107 Inspect clutch pedal linkage, cables, automatic adjuster mechanisms, brackets, bushings, pivots, and springs; perform necessary action. 3B2 P-1
C108 Inspect hydraulic clutch slave and master cylinders, lines, and hoses; determine necessary action. 3B3 P-1
C608 Inspect and replace clutch pressure plate assembly, clutch disc, release (throw-out) bearing and linkage, and pilot bearing/bushing (as applicable). 3B4 P-1
C111 Bleed clutch hydraulic system. 3B5 P-1
C847 Inspect flywheel and ring gear for wear and cracks; determine necessary action. 3B6 P-1
C692 Inspect engine block, core plugs, rear main engine oil seal, clutch (bell) housing, transmission/transaxle case mating surfaces, and alignment dowels; determine necessary action. 3B7 P-1
C848 Measure flywheel runout and crankshaft end play; determine necessary action. 3B8 P-2
C. Transmission/Transaxle Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C764 Remove and reinstall transmission/transaxle. 3C1 P-1
C765 Disassemble, clean, and reassemble transmission/transaxle components. 3C2 P-1
C767 Inspect transmission/transaxle case, extension housing, case mating surfaces, bores, bushings, and vents; perform necessary action. 3C3 P-2
C609 Diagnose noise concerns using transmission/transaxle powerflow principles. 3C4 P-2
C693 Diagnose hard shifting and jumping out of gear concerns; determine necessary action. 3C5 P-2
C768 Inspect, adjust, and reinstall shift linkages, brackets, bushings, cables, pivots, and levers. 3C6 P-2
C610 Inspect, replace, and align powertrain mounts. 3C7 P-2
C769 Inspect and replace gaskets, seals, and sealants; inspect sealing surfaces. 3C8 P-2
C770 Remove and replace transaxle final drive. 3C9 P-3
C771 Inspect, adjust, and reinstall shift cover, forks, levers, grommets, shafts, sleeves, detent mechanism, interlocks, and springs. 3C10 P-2
C772 Measure end play or preload (shim or spacer selection procedure) on transmission/transaxle shafts; perform necessary action. 3C11 P-1
C773 Inspect and reinstall synchronizer hub, sleeve, keys (inserts), springs, and blocking rings. 3C12 P-1
C887 Diagnose transaxle final drive assembly noise and vibration concerns; determine necessary action. 3C13 P-3
C774 Remove, inspect, measure, adjust, and reinstall transaxle final drive pinion gears (spiders), shaft, side gears, side bearings, thrust washers, and case assembly. 3C14 P-3
C775 Inspect lubrication devices (oil pump or slingers); perform necessary action. 3C15 P-3
C776 Inspect, test, and replace transmission/transaxle sensors and switches. 3C16 P-2
C611 Describe the operational characteristics of an electronically controlled manual transmission/transaxle. 3C17 P-3
D. Drive Shaft and Half Shaft, Universal and Constant-Velocity (CV) Joint Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C132 Diagnose constant-velocity (CV) joint noise and vibration concerns; determine necessary action. 3D1 P-1
C133 Diagnose universal joint noise and vibration concerns; perform necessary action. 3D2 P-2
C134 Remove and replace front wheel drive (FWD) front wheel bearing. 3D3 P-1
C849 Inspect, service, and replace shafts, yokes, boots, and CV joints. 3D4 P-1
C778 Inspect, service, and replace shaft center support bearings. 3D5 P-3
C779 Check shaft balance and phasing; measure shaft runout; measure and adjust driveline angles. 3D6 P-2
E. Drive Axle Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C138 Diagnose noise and vibration concerns; determine necessary action. 3E101 P-2
C888 Diagnose fluid leakage concerns; determine necessary action. 3E102 P-1
C889 Inspect and replace companion flange and pinion seal; measure companion flange runout. 3E103 P-2
C780 Inspect ring gear and measure runout; determine necessary action. 3E104 P-2
C890 Remove, inspect, and reinstall drive pinion and ring gear, spacers, sleeves, and bearings. 3E105 P-2
C781 Measure and adjust drive pinion depth. 3E106 P-2
C782 Measure and adjust drive pinion bearing preload. 3E107 P-2
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). 3E108 P-2
C783 Check ring and pinion tooth contact patterns; perform necessary action. 3E109 P-1
C147 Disassemble, inspect, measure, and adjust or replace differential pinion gears (spiders), shaft, side gears, side bearings, thrust washers, and case. 3E110 P-2
C148 Reassemble and reinstall differential case assembly; measure runout; determine necessary action. 3E111 P-2
C784 Diagnose noise, slippage, and chatter concerns; determine necessary action. 3E201 P-3
C785 Clean and inspect differential housing; refill with correct lubricant and/or additive. 3E202 P-2
C612 Inspect and reinstall limited slip differential components. 3E203 P-3
C786 Measure rotating torque; determine necessary action. 3E204 P-3
C153 Diagnose drive axle shafts, bearings, and seals for noise, vibration, and fluid leakage concerns; determine necessary action. 3E301 P-2
C154 Inspect and replace drive axle shaft wheel studs. 3E302 P-1
C155 Remove and replace drive axle shafts. 3E303 P-1
C156 Inspect and replace drive axle shaft seals, bearings, and retainers. 3E304 P-2
C850 Measure drive axle flange runout and shaft end play; determine necessary action. 3E305 P-2
F. Four-wheel Drive/All-wheel Drive Component Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C787 Diagnose noise, vibration, and unusual steering concerns; determine necessary action. 3F1 P-3
C788 Inspect, adjust, and repair shifting controls (mechanical, electrical, and vacuum), bushings, mounts, levers, and brackets. 3F2 P-3
C789 Remove and reinstall transfer case. 3F3 P-3
C875 Disassemble, service, and reassemble transfer case and components. 3F4 P-3
C876 Inspect front-wheel bearings and locking hubs; perform necessary action. 3F5 P-3
C877 Check drive assembly seals and vents; check lube level. 3F6 P-3
C878 Diagnose, test, adjust, and replace electrical/electronic components of four-wheel drive systems. 3F7 P-3
C613 Identify concerns related to variations in tire circumference and/or final drive ratios. 3F8 P-3
   

ASE 4: Suspension and Steering: 2008 Tasksheets - (Top)

A. General Suspension and Steering Systems Diagnosis
CDX Tasksheet Number Tasksheet Shortname NATEF 2008 Reference NATEF Priority
C879 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 4A1 P-1
C851 Identify and interpret suspension and steering system concerns; determine necessary action. 4A2 P-1
C166 Research applicable vehicle and service information, such as suspension and steering system operation, vehicle service history, service precautions, and technical service bulletins. 4A3 P-1
C872 Locate and interpret vehicle and major component identification numbers. 4A4 P-1
B. Steering Systems Diagnosis and Repair
CDX Tasksheet Number Tasksheet Shortname NATEF 2008 Reference NATEF Priority
C168 Disable and enable supplemental restraint system (SRS). 4B1 P-1
C169 Remove and replace steering wheel; center/time supplemental restraint system (SRS) coil (clock spring). 4B2 P-1
C170 Diagnose steering column noises, looseness, and binding concerns (including tilt mechanisms); determine necessary action. 4B3 P-2
C884 Diagnose power steering gear (non-rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine necessary action. 4B4 P-2
C880 Diagnose power steering gear (rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine necessary action. 4B5 P-2
C173 Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; perform necessary action. 4B6 P-2
C881 Adjust non-rack and pinion worm bearing preload and sector lash. 4B7 P-3
C882 Remove and replace rack and pinion steering gear; inspect mounting bushings and brackets. 4B8 P-2
C883 Inspect and replace rack and pinion steering gear inner tie rod ends (sockets) and bellows boots. 4B9 P-2
C177 Determine proper power steering fluid type; inspect fluid level and condition. 4B10 P-1
C178 Flush, fill, and bleed power steering system. 4B11 P-2
C179 Diagnose power steering fluid leakage; determine necessary action. 4B12 P-2
C180 Remove, inspect, replace, and adjust power steering pump belt. 4B13 P-1
C181 Remove and reinstall power steering pump. 4B14 P-2
C699 Remove and reinstall press fit power steering pump pulley; check pulley and belt alignment. 4B15 P-2
C183 Inspect and replace power steering hoses and fittings. 4B16 P-2
C184 Inspect and replace pitman arm, relay (centerlink/intermediate) rod, idler arm and mountings, and steering linkage damper. 4B17 P-2
C185 Inspect, replace, and adjust tie rod ends (sockets), tie rod sleeves, and clamps. 4B18 P-1
C186 Test and diagnose components of electronically controlled steering systems using a scan tool; determine necessary action. 4B19 P-3
C700 Inspect and test electric power assist steering. 4B20 P-3
C551 Identify hybrid vehicle power steering system electrical circuits, service and safety precautions. 4B21 P-3
C. Suspension Systems Diagnosis and Repair
CDX Tasksheet Number Tasksheet Shortname NATEF 2008 Reference NATEF Priority
C852 Diagnose short and long arm suspension system noises, body sway, and uneven ride height concerns; determine necessary action. 4C1 P-1
C853 Diagnose strut suspension system noises, body sway, and uneven ride height concerns; determine necessary action. 4C2 P-1
C790 Remove, inspect, and install upper and lower control arms, bushings, shafts, and rebound bumpers. 4C3 P-2
C791 Remove, inspect and install strut rods and bushings. 4C4 P-2
C792 Remove, inspect, and install upper and/or lower ball joints. 4C5 P-1
C192 Remove, inspect, and install steering knuckle assemblies. 4C6 P-2
C193 Remove, inspect, and install short and long arm suspension system coil springs and spring insulators. 4C7 P-3
C194 Remove, inspect, install, and adjust suspension system torsion bars; inspect mounts. 4C8 P-3
C793 Remove, inspect, and install stabilizer bar bushings, brackets, and links. 4C9 P-2
C794 Remove, inspect, and install strut cartridge or assembly, strut coil spring, insulators (silencers), and upper strut bearing mount. 4C10 P-1
C854 Remove, inspect, and install leaf springs, leaf spring insulators (silencers), shackles, brackets, bushings, and mounts. 4C11 P-3
D. Related Suspension and Steering Service
CDX Tasksheet Number Tasksheet Shortname NATEF 2008 Reference NATEF Priority
C202 Inspect, remove, and replace shock absorbers. 4D1 P-1
C203 Remove, inspect, and service or replace front and rear wheel bearings. 4D2 P-1
C204 Test and diagnose components of electronically controlled suspension systems using a scan tool; determine necessary action. 4D3 P-3
C614 Diagnose, inspect, adjust, repair or replace components of electronically controlled steering systems (including sensors, switches, and actuators); initialize system as required. 4D4 P-3
C615 Describe the function of the idle speed compensation switch. 4D5 P-3
C616 Lubricate suspension and steering systems. 4D6 P-2
E. Wheel Alignment Diagnosis, Adjustment, and Repair
CDX Tasksheet Number Tasksheet Shortname NATEF 2008 Reference NATEF Priority
C206 Diagnose vehicle wander, drift, pull, hard steering, bump steer, memory steer, torque steer, and steering return concerns; determine necessary action. 4E1 P-1
C617 Perform prealignment inspection and measure vehicle ride height; perform necessary 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 necessary action. 4E4 P-2
C214 Check SAI (steering axis inclination) and included angle; determine necessary action. 4E5 P-2
C216 Check rear wheel thrust angle; determine necessary action. 4E6 P-1
C217 Check for front wheel setback; determine necessary action. 4E7 P-2
C795 Check front and/or rear cradle (subframe) alignment; determine necessary action. 4E8 P-3
F. Wheel and Tire Diagnosis and Repair
CDX Tasksheet Number Tasksheet Shortname NATEF 2008 Reference NATEF Priority
C619 Inspect tire condition; identify tire wear patterns; check and adjust air pressure; determine necessary action. 4F1 P-1
C855 Diagnose wheel/tire vibration, shimmy, and noise; determine necessary action. 4F2 P-2
C222 Rotate tires according to manufacturer’s recommendations. 4F3 P-1
C701 Measure wheel, tire, axle flange, and hub runout; determine necessary action. 4F4 P-2
C796 Diagnose tire pull problems; determine necessary action. 4F5 P-2
C620 Dismount, inspect, and remount tire on wheel; Balance wheel and tire assembly (static and dynamic). 4F6 P-1
C621 Dismount, inspect, and remount tire on wheel equipped with tire pressure monitoring system sensor. 4F7 P-2
C227 Reinstall wheel; torque lug nuts. 4F8 P-1
C580 Inspect tire and wheel assembly for air loss; perform necessary action. 4F9 P-1
C552 Repair tire using internal patch. 4F10 P-1
C553 Inspect, diagnose, and calibrate tire pressure monitoring system. 4F11 P-2
 

ASE 5: Brakes: 2008 Tasksheets - (Top)

A. General Brake Systems Diagnosis
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C797 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 5A1 P-1
C229 Identify and interpret brake system concern; determine necessary action. 5A2 P-1
C230 Research applicable vehicle and service information, such as brake system operation, vehicle service history, service precautions, and technical service bulletins. 5A3 P-1
C798 Locate and interpret vehicle and major component identification numbers. 5A4 P-1
B. Hydraulic System Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C894 Diagnose pressure concerns in the brake system using hydraulic principles (Pascal’s Law). 5B1 P-1
C622 Measure brake pedal height, travel, and free play (as applicable); determine necessary action. 5B2 P-1
C704 Check master cylinder for internal/external leaks and proper operation; determine necessary action. 5B3 P-1
C235 Remove, bench bleed, and reinstall master cylinder. 5B4 P-1
C236 Diagnose poor stopping, pulling or dragging concerns caused by malfunctions in the hydraulic system; determine necessary action. 5B5 P-2
C237 Inspect brake lines, flexible hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging or wear; tighten loose fittings and supports; determine necessary action. 5B6 P-1
C624 Fabricate brake lines using proper material and flaring procedures (double flare and ISO types). 5B8 P-2
C623 Replace brake lines, hoses, fittings, and supports. 5B7 P-2
C239 Select, handle, store, and fill brake fluids to proper level. 5B9 P-1
C799 Inspect, test, and/or replace metering (hold-off), proportioning (balance), pressure differential, and combination valves. 5B10 P-3
C242 Inspect, test, and/or replace components of brake warning light system. 5B11 P-3
C705 Bleed and/or flush brake system. 5B12 P-1
C625 Test brake fluid for contamination. 5B13 P-1
C. Drum Brake Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C706 Diagnose poor stopping, noise, vibration, pulling, grabbing, dragging or pedal pulsation concerns; determine necessary action. 5C1 P-1
C800 Remove, clean, inspect, and measure brake drums; determine necessary action. 5C2 P-1
C626 Refinish brake drum; measure final drum diameter. 5C3 P-1
C248 Remove, clean, and inspect 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 and install wheel cylinders. 5C5 P-2
C801 Pre-adjust brake shoes and parking brake; install brake drums or drum/hub assemblies and wheel bearings. 5C6 P-2
C251 Install wheel, torque lug nuts, and make final checks and adjustments. 5C7 P-1
D. Disc Brake Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C708 Diagnose poor stopping, noise, vibration, pulling, grabbing, dragging or pulsation concerns; determine necessary action. 5D1 P-1
C802 Remove caliper assembly; inspect for leaks and damage to caliper housing; determine necessary action. 5D2 P-1
C803 Clean and inspect caliper mounting and slides/pins for operation, wear, and damage; determine necessary action. 5D3 P-1
C627 Remove, inspect and replace pads and retaining hardware; determine necessary action. 5D4 P-1
C804 Disassemble and clean caliper assembly; inspect parts for wear, rust, scoring, and damage; replace seal, boot, and damaged or worn parts. 5D5 P-3
C805 Reassemble, lubricate, and reinstall caliper, pads, and related hardware; seat pads, and inspect for leaks. 5D6 P-1
C628 Clean, inspect, and measure rotor thickness, lateral runout, and thickness variation; determine necessary action 5D7 P-1
C806 Remove and reinstall rotor. 5D8 P-1
C629 Refinish rotor on vehicle; measure final rotor thickness. 5D9 P-1
C630 Refinish rotor off vehicle; measure final rotor thickness. 5D10 P-1
C631 Retract caliper piston on an integrated parking brake system. 5D11 P-3
C262 Install wheel, torque lug nuts, and make final checks and adjustments. 5D12 P-1
C632 Check brake pad wear indicator system operation; determine necessary action. 5D13 P-2
E. Power Assist Units Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C807 Test pedal free travel; check power assist operation. 5E1 P-2
C808 Check vacuum supply to vacuum-type power booster. 5E2 P-1
C809 Inspect the vacuum-type power booster unit for leaks; inspect the check valve for proper operation; determine necessary action. 5E3 P-1
C581 Inspect and test hydraulically assisted power brake system for leaks and proper operation; determine necessary action. 5E4 P-3
C556 Measure and adjust master cylinder pushrod length. 5E5 P-3
F. Miscellaneous (Wheel Bearings, Parking Brakes, Electrical, Etc.) Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C267 Diagnose wheel bearing noises, wheel shimmy, and vibration concerns; determine necessary action. 5F1 P-1
C810 Remove, clean, inspect, repack, and install wheel bearings and replace seals; install hub and adjust bearings. 5F2 P-1
C811 Check parking brake cables and components for wear, binding, and corrosion; clean, lubricate, adjust or replace as needed. 5F3 P-2
C633 Check parking brake and indicator light system operation; determine necessary action. 5F4 P-1
C272 Check operation of brake stop light system; determine necessary action. 5F5 P-1
C273 Replace wheel bearing and race. 5F6 P-2
C274 Inspect and replace wheel studs. 5F7 P-1
C275 Remove and reinstall sealed wheel bearing assembly. 5F8 P-1
G. Electronic Brake, Traction and Stability Control Systems Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C634 Identify and inspect electronic brake control system components; determine necessary action. 5G1 P-1
C635 Diagnose poor stopping, wheel lock-up, abnormal pedal feel, unwanted application, and noise concerns associated with the electronic brake control system ; determine necessary action. 5G2 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 necessary action. 5G3 P-1
C812 Depressurize high-pressure components of the electronic brake control system. 5G4 P-3
C637 Bleed the electronic brake control system hydraulic circuits. 5G5 P-1
C638 Remove and install electronic brake control system electrical/electronic and hydraulic components. 5G6 P-3
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-1
C813 Diagnose electronic brake control systembraking concerns caused by vehicle modifications (tire size, curb height, final drive ratio, etc.). 5G8 P-3
C857 Identify traction control/vehicle stability control system components. 5G9 P-3
C640 Describe the operation of a regenerative braking system. 5G10 P-3
 

ASE 6: Electrical/Electronic Systems: 2008 Tasksheets - (Top)

A. General Electrical System Diagnosis
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C814 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 6A1 P-1
C285 Identify and interpret electrical/electronic system concern; determine necessary action. 6A2 P-1
C286 Research applicable vehicle and service information, such as electrical/electronic system operation, vehicle service history, service precautions, and technical service bulletins. 6A3 P-1
C815 Locate and interpret vehicle and major component identification numbers. 6A4 P-1
C816 Diagnose electrical/electronic integrity of series, parallel and series-parallel circuits using principles of electricity (Ohm’s Law). 6A5 P-1
C289 Use wiring diagrams during diagnosis of electrical circuit problems. 6A6 P-1
C641 Demonstrate the proper use of a digital multimeter (DMM) during diagnosis of electrical circuit problems, including: source voltage, voltage drop, current flow, and resistance. 6A7 P-1
C291 Check electrical circuits with a test light; determine necessary action. 6A8 P-2
C642 Check electrical/electronic circuit waveforms; interpret readings and determine needed repairs. 6A9 P-2
C295 Check electrical circuits using fused jumper wires; determine necessary action. 6A10 P-2
C296 Locate shorts, grounds, opens, and resistance problems in electrical/electronic circuits; determine necessary action. 6A11 P-1
C817 Measure and diagnose the cause(s) of excessive parasitic draw; determine necessary action. 6A12 P-1
C298 Inspect and test fusible links, circuit breakers, and fuses; determine necessary action. 6A13 P-1
C299 Inspect and test switches, connectors, relays, solenoid solid state devices, and wires of electrical/electronic circuits; perform necessary action. 6A14 P-1
C643 Remove and replace terminal end from connector; replace connectors and terminal ends. 6A15 P-1
C559 Repair wiring harness (including CAN/BUS systems). 6A16 P-1
C301 Perform solder repair of electrical wiring. 6A17 P-1
C560 Identify location of hybrid vehicle high voltage circuit disconnect (service plug) location and safety procedures 6A18 P-2
B. Battery Diagnosis and Service
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C302 Perform battery state-of-charge test; determine necessary action. 6B1 P-1
C818 Perform battery capacity test; confirm proper battery capacity for vehicle application; determine necessary action. 6B2 P-1
C304 Maintain or restore electronic memory functions. 6B3 P-1
C644 Inspect, clean, fill, and/or replace battery, battery cables, connectors, clamps, and hold-downs. 6B4 P-1
C819 Perform battery charge. 6B5 P-1
C820 Start a vehicle using jumper cables or an auxiliary power supply. 6B6 P-1
C561 Identify high voltage circuits of electric or hybrid electric vehicle and related safety precautions. 6B7 P-3
C645 Identify electronic modules, security systems, radios, and other accessories that require reinitialization or code entry following battery disconnect. 6B8 P-1
C874 Identify hybrid vehicle auxiliary (v) battery service, repair and test procedures. 6B9 P-3
C. Starting System Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C309 Perform starter current draw tests; determine necessary action. 6C1 P-1
C310 Perform starter circuit voltage drop tests; determine necessary action. 6C2 P-1
C311 Inspect and test starter relays and solenoids; determine necessary action. 6C3 P-2
C312 Remove and install starter in a vehicle. 6C4 P-1
C313 Inspect and test switches, connectors, and wires of starter control circuits; perform necessary action. 6C5 P-2
C314 Differentiate between electrical and engine mechanical problems that cause a slow-crank or no-crank condition. 6C6 P-2
D. Charging System Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C315 Perform charging system output test; determine necessary action. 6D1 P-1
C316 Diagnose charging system for the cause of undercharge, no-charge, and overcharge conditions. 6D2 P-1
C317 Inspect, adjust, or replace generator (alternator) drive belts, pulleys, and tensioners; check pulley and belt alignment. 6D3 P-1
C318 Remove, inspect, and install generator (alternator). 6D4 P-1
C319 Perform charging circuit voltage drop tests; determine necessary action. 6D5 P-1
E. Lighting Systems Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C320 Diagnose the cause of brighter than normal, intermittent, dim, or no light operation; determine necessary action. 6E1 P-1
C321 Inspect, replace, and aim headlights and bulbs. 6E2 P-2
C859 Inspect and diagnose incorrect turn signal or hazard light operation; perform necessary action. 6E3 P-2
C564 Identify system voltage and safety precautions associated with high intensity discharge headlights. 6E4 P-2
F. Gauges, Warning Devices, and Driver Information Systems Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C646 Inspect and test gauges and gauge sending units for cause of abnormal gauge readings; determine necessary action. 6F1 P-1
C324 Inspect and test connectors, wires, and printed circuit boards of gauge circuits; determine necessary action. 6F2 P-3
C325 Diagnose the cause of incorrect operation of warning devices and other driver information systems; determine necessary action. 6F3 P-1
C326 Inspect and test sensors, connectors, and wires of electronic (digital) instrument circuits; determine necessary action. 6F4 P-3
G. Horn and Wiper/Washer Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C327 Diagnose incorrect horn operation; perform necessary action. 6G1 P-1
C328 Diagnose incorrect wiper operation; diagnose wiper speed control and park problems; perform necessary action. 6G2 P-1
C329 Diagnose incorrect washer operation; perform necessary action. 6G3 P-2
H. Accessories Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C330 Diagnose incorrect operation of motor-driven accessory circuits; determine necessary action. 6H1 P-1
C860 Diagnose incorrect heated glass, mirror, or seat operation; determine necessary action. 6H2 P-3
C647 Diagnose incorrect electric lock operation (including remote keyless entry); determine necessary action. 6H3 P-1
C333 Diagnose incorrect operation of cruise control systems; determine necessary action. 6H4 P-3
C861 Diagnose supplemental restraint system (SRS) concerns; determine necessary action. 6H5 P-1
C335 Disarm and enable the airbag system for vehicle service. 6H6 P-1
C336 Diagnose radio static and weak, intermittent, or no radio reception; determine necessary action. 6H7 P-3
C337 Remove and reinstall door panel. 6H8 P-1
C338 Diagnose body electronic system circuits using a scan tool; determine necessary action. 6H9 P-2
C821 Check for module communication (including CAN/BUS systems) errors using a scan tool. 6H10 P-2
C340 Diagnose the cause of false, intermittent, or no operation of anti-theft systems. 6H11 P-3
C648 Describe the operation of keyless entry/remote-start systems. 6H12 P-3
C649 Perform software transfers, software updates, or flash reprogramming on electronic modules. 6H13 P-3
   

ASE 7: HVAC: 2008 Tasksheets - (Top)

A. A/C System Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C822 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 7A1 P-1
C341 Identify and interpret heating and air conditioning concern; determine necessary action. 7A2 P-1
C342 Research applicable vehicle and service information, such as heating and air conditioning system operation, vehicle service history, service precautions, and technical service bulletins. 7A3 P-1
C823 Locate and interpret vehicle and major component identification numbers. 7A4 P-1
C824 Performance test A/C system; identify A/C system malfunctions. 7A5 P-1
C825 Identify abnormal operating noises in the A/C system; determine necessary action. 7A6 P-2
C650 Identify refrigerant type; select and connect proper gauge set; record temperature and pressure readings. 7A7 P-1
C347 Leak test A/C system; determine necessary action. 7A8 P-1
C651 Inspect the condition of refrigerant oil removed from the system; determine necessary action. 7A9 P-2
C652 Determine recommended oil and oil capacity for system application. 7A10 P-1
C566 Using scan tool, observe and record related HVAC data and trouble codes. 7A11 P-1
B. Refrigeration System Component Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C350 Diagnose A/C system conditions that cause the protection devices (pressure, thermal, and PCM) to interrupt system operation; determine necessary action. 7B1 P-2
C653 Inspect and replace A/C compressor drive belts, pulleys, and tensioners; determine necessary action. 7B2 P-1
C654 Inspect, test, and/or replace A/C compressor clutch components and/or assembly; check compressor clutch air gap and adjust as needed.. 7B3 P-2
C826 Remove, inspect, and reinstall A/C compressor and mountings; determine required oil quantity. 7B4 P-1
C827 Identify hybrid vehicle A/C system electrical circuits, service and safety precautions. 7B5 P-3
C863 Determine the need for an additional A/C system filter; perform necessary action. 7B6 P-3
C355 Remove and inspect A/C system mufflers, hoses, lines, fittings, O-rings, seals, and service valves; perform necessary action. 7B7 P-2
C356 Inspect A/C condenser for airflow restrictions; perform necessary action. 7B8 P-1
C829 Remove, inspect, and reinstall receiver/drier or accumulator/drier; determine required oil quantity. 7B9 P-1
C873 Remove, inspect, and install expansion valve or orifice (expansion) tube. 7B10 P-1
C830 Inspect evaporator housing water drain; perform necessary action. 7B11 P-2
C831 Remove, inspect, and reinstall evaporator; determine required oil quantity. 7B12 P-3
C832 Remove, inspect, and reinstall condenser; determine required oil quantity. 7B13 P-3
C. Heating, Ventilation, and Engine Cooling Systems Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C362 Diagnose temperature control problems in the heater/ventilation system; determine necessary action. 7C1 P-2
C833 Perform cooling system pressure tests; check coolant condition, inspect and test radiator, cap (pressure/vacuum), coolant recovery tank, and hoses; perform necessary action. 7C2 P-1
C364 Inspect engine cooling and heater system hoses and belts; perform necessary action. 7C3 P-1
C834 Inspect, test, and replace thermostat and gasket/seal. 7C4 P-1
C366 Determine coolant condition and coolant type for vehicle application; drain and recover coolant. 7C5 P-1
C367 Flush system; refill system with recommended coolant; bleed system. 7C6 P-2
C368 Inspect and test cooling fan, fan clutch, fan shroud, and air dams; perform necessary action. 7C7 P-1
C369 Inspect and test electric cooling fan, fan control system and circuits; determine necessary action. 7C8 P-1
C370 Inspect and test heater control valve(s); perform necessary action. 7C9 P-2
C864 Remove, inspect, and reinstall heater core. 7C10 P-3
D. Operating Systems and Related Controls Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C372 Diagnose malfunctions in the electrical controls of heating, ventilation, and A/C (HVAC) systems; determine necessary action. 7D1 P-2
C373 Inspect and test A/C-heater blower, motors, resistors, switches, relays, wiring, and protection devices; perform necessary action. 7D2 P-1
C374 Test and diagnose A/C compressor clutch control systems; determine necessary action. 7D3 P-1
C835 Diagnose malfunctions in the vacuum, mechanical, and electrical components and controls of the heating, ventilation, and A/C (HVAC) system; determine necessary action. 7D4 P-2
C376 Inspect and test A/C-heater control panel assembly; determine necessary action. 7D5 P-3
C865 Inspect and test A/C-heater control cables, motors, and linkages; perform necessary action. 7D6 P-3
C378 Inspect A/C-heater ducts, doors, hoses, cabin filters and outlets; perform necessary action. 7D7 P-2
C655 Identify the source of A/C system odors. 7D8 P-2
C866 Check operation of automatic or semi-automatic heating, ventilation, and air-conditioning (HVAC) control systems; determine necessary action. 7D9 P-2
E. Refrigerant Recovery, Recycling, and Handling
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C656 Perform correct use and maintenance of refrigerant handling equipment according to equipment manufacturer’s standards. 7E1 P-1
C836 Identify and recover A/C system refrigerant. 7E2 P-1
C657 Recycle, label, and store refrigerant. 7E3 P-1
C658 Evacuate and charge A/C system; add refrigerant oil as required. 7E4 P-1
   

ASE 8: Engine Performance: 2008 Tasksheets - (Top)

A. General Engine Diagnosis
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C837 Complete work order to include customer information, vehicle identifying information, customer concern, related service history, cause, and correction. 8A1 P-1
C386 Identify and interpret engine performance concern; determine necessary action. 8A2 P-1
C387 Research applicable vehicle and service information, such as engine management system operation, vehicle service history, service precautions, and technical service bulletins. 8A3 P-1
C838 Locate and interpret vehicle and major component identification numbers. 8A4 P-1
C389 Inspect engine assembly for fuel, oil, coolant, and other leaks; determine necessary action. 8A5 P-2
C390 Diagnose abnormal engine noise or vibration concerns; determine necessary action. 8A6 P-3
C391 Diagnose abnormal exhaust color, odor, and sound; determine necessary action. 8A7 P-2
C392 Perform engine absolute (vacuum/boost) manifold pressure tests; determine necessary action. 8A8 P-1
C393 Perform cylinder power balance test; determine necessary action. 8A9 P-2
C709 Perform cylinder cranking and running compression tests; determine necessary action. 8A10 P-1
C395 Perform cylinder leakage test; determine necessary action. 8A11 P-1
C710 Diagnose engine mechanical, electrical, electronic, fuel, and ignition concerns; determine necessary action. 8A12 P-1
C397 Prepare 4 or 5 gas analyzer; inspect and prepare vehicle for test, and obtain exhaust readings; interpret readings, and determine necessary action. 8A13 P-3
C398 Verify engine operating temperature; determine necessary action. 8A14 P-1
C399 Perform cooling system pressure tests; check coolant condition; inspect and test radiator, pressure cap, coolant recovery tank, and hoses; perform necessary action. 8A15 P-1
C400 Verify correct camshaft timing. 8A16 P-1
B. Computerized Engine Controls Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C659 Retrieve and record diagnostic trouble codes, OBD monitor status, and freeze frame data; clear codes when applicable. 8B1 P-1
C660 Diagnose the causes of emissions or driveability concerns with stored or active diagnostic trouble codes; obtain, graph, and interpret scan tool data. 8B2 P-1
C711 Diagnose emissions or driveability concerns without stored diagnostic trouble codes; determine necessary action. 8B3 P-1
C839 Check for module communication (including CAN/BUS systems) errors using a scan tool. 8B4 P-2
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 necessary action. 8B5 P-1
C841 Access and use service information to perform step-by-step diagnosis. 8B6 P-1
C409 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. 8B7 P-3
C867 Perform active tests of actuators using a scan tool; determine necessary action. 8B8 P-1
C661 Describe the importance of running all OBDII monitors for repair verification. 8B9 P-1
C. Ignition System Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C712 Diagnose ignition system related problems such as no-starting, hard starting, engine misfire, poor driveability, spark knock, power loss, poor mileage, and emissions concerns; determine necessary action. 8C1 P-1
C662 Inspect and test ignition primary and secondary circuit wiring and solid state components; test ignition coil(s); perform necessary action. 8C2 P-1
C663 Inspect and test crankshaft and camshaft position sensor(s); perform necessary action. 8C3 P-1
C664 Inspect, test, and/or replace ignition control module, powertrain/engine control module; reprogram as necessary. 8C4 P-2
D. Fuel, Air Induction, and Exhaust Systems Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C713 Diagnose 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 necessary action. 8D1 P-1
C420 Check fuel for contaminants and quality; determine necessary action. 8D2 P-2
C868 Inspect and test fuel pumps and pump control systems for pressure, regulation, and volume; perform necessary action. 8D2 P-1
C422 Replace fuel filters. 8D3 P-2
C424 Inspect throttle body, air induction system, intake manifold and gaskets for vacuum leaks and/or unmetered air. 8D4 P-2
C842 Inspect and test fuel injectors. 8D5 P-1
C665 Verify idle control operation. 8D6 P-1
C428 Inspect the integrity of the exhaust manifold, exhaust pipes, muffler(s), catalytic converter(s), resonator(s), tail pipe(s), and heat shield(s); perform necessary action. 8D7 P-1
C429 Perform exhaust system back-pressure test; determine necessary action. 8D8 P-1
C869 Test the operation of turbocharger/supercharger systems; determine necessary action. 8D9 P-3
E. Emissions Control Systems Diagnosis and Repair
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C666 Diagnose oil leaks, emissions, and driveability concerns caused by the positive crankcase ventilation (PCV) system; determine necessary action. 8E1 P-2
C432 Inspect, test and service positive crankcase ventilation (PCV) filter/breather cap, valve, tubes, orifices, and hoses; perform necessary action. 8E2 P-2
C667 Diagnose emissions and driveability concerns caused by the exhaust gas recirculation (EGR) system; determine necessary action. 8E3 P-1
C434 Inspect, test, service and replace components of the EGR system, including EGR tubing, exhaust passages, vacuum/pressure controls, filters and hoses; perform necessary action. 8E4 P-1
C435 Inspect and test electrical/electronic sensors, controls, and wiring of exhaust gas recirculation (EGR) systems; perform necessary action. 8E5 P-2
C843 Diagnose emissions and driveability concerns caused by the secondary air injection and catalytic converter systems; determine necessary action. 8E6 P-2
C437 Inspect and test mechanical components of secondary air injection systems; perform necessary action. 8E7 P-3
C438 Inspect and test electrical/electronically-operated components and circuits of air injection systems; perform necessary action. 8E8 P-3
C714 Inspect and test catalytic converter efficiency. 8E9 P-1
C844 Diagnose emissions and driveability concerns caused by the evaporative emissions control system; determine necessary action. 8E10 P-1
C870 Inspect and test components and hoses of the evaporative emissions control system; perform necessary action. 8E11 P-1
C668 Interpret diagnostic trouble codes (DTCs) and scan tool data related to the emissions control systems; determine necessary action. 8E12 P-1
F. Engine Related Service
CDX Tasksheet Number NATEF 2008 Tasksheet Title NATEF 2008 Reference NATEF Priority
C447 Adjust valves on engines with mechanical or hydraulic lifters. 8F1 P-1
C448 Remove and replace timing belt; verify correct camshaft timing. 8F2 P-1
C845 Remove and replace thermostat and gasket/seal. 8F3 P-1
C450 Inspect and test mechanical/electrical fans, fan clutch, fan shroud/ducting, air dams, and fan control devices; perform necessary action. 8F4 P-1
C595 Perform common fastener and thread repairs, to include: remove broken bolt, restore internal and external threads, and repair internal threads with a threaded insert. 8F5 P-1
C846 Perform engine oil and filter change. 8F6 P-1
C575 Identify hybrid vehicle internal combustion engine service precautions. 8F7 P-3
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