Lesson 1Exhaust and emissions control: manifold, catalytic converter, oxygen sensors checksThis part handles checks of exhaust and emissions parts, such as manifolds, catalytic converters, and oxygen sensors. You will learn to detect leaks, overheating, internal harm, and sensor issues impacting efficiency.
Checking manifolds for leaks and cracksHeat shield, hanger, and joint inspectionCatalytic converter temperature and rattle checksOxygen sensor visual and wiring inspectionUsing scan data for O2 and catalyst testsIdentifying exhaust restrictions and backpressureLesson 2Battery and charging system: charge status, load test, terminals and alternator performanceThis part specifies preventive assessments for the battery and charging system. You will cover charge status testing, load testing, terminal maintenance, and alternator output evaluations to avoid starting failures and electrical issues.
Open-circuit voltage and SOC assessmentBattery load testing and rating selectionTerminal cleaning and corrosion preventionChecking cable routing and ground pointsAlternator output and ripple testingParasitic draw checks during diagnosisLesson 3Air filter, fuel filter, cabin filter checks and replacement standardsThis part clarifies checks and replacement standards for air, fuel, and cabin filters. You will understand how blockages affect output, evaluate dirt levels, and adhere to service periods for varied operating scenarios.
Engine air filter restriction and damage checksFuel filter clogging symptoms and serviceCabin filter access, removal, and inspectionChoosing correct filter types and ratingsService intervals for severe duty useDocumenting filter changes on service logsLesson 4Drive belts, accessory belt tensioners, pulleys checks and replacement indicatorsThis part covers checks of drive belts, accessory belt tensioners, and pulleys. You will identify wear, noise origins, and breakdown risks, and decide when preventive replacement is warranted.
Identifying belt cracks, glazing, and frayingMeasuring belt wear with gauge toolsManual and automatic tensioner checksPulley alignment, wobble, and noise testsReplacing belts without damaging componentsPost-replacement recheck and noise diagnosisLesson 5Ignition system: spark plug checks/replacement, ignition coils and wire assessmentsIn this part, you will examine preventive checks for the ignition system, including spark plugs, coils, and wires. You will learn inspection, testing, and replacement standards to prevent misfires, difficult starts, and low fuel efficiency.
Spark plug removal and condition readingGap measurement and correct torqueCoil primary and secondary testsInspecting leads, boots, and routingCommon ignition-related drivability symptomsRecommended replacement intervals and partsLesson 6Tyres, wheel bearings, alignment, and suspension (shocks, springs, bushings) check methodsIn this part, you will examine check methods for tyres, wheel bearings, alignment, and suspension parts like shocks, struts, springs, and bushings. Emphasis is on safety, tyre wear signs, and ride and handling concerns.
Tire tread depth, wear pattern, and ageChecking tire pressures and load ratingsWheel bearing play, noise, and seal checksVisual inspection of shocks and strutsSpring, bushing, and joint wear checksBasic alignment indicators and road testLesson 7Brake system: pads, rotors, calipers, lines, parking brake, ABS sensor assessmentsThis part explains methodical brake checks, covering pads, rotors, calipers, hydraulic lines, parking brake, and ABS sensors. It stresses wear thresholds, test approaches, frequent faults, and safe service habits.
Measuring pad thickness and wear patternsRotor runout, thickness, and surface checksCaliper slide, piston, and seal inspectionBrake hose, hard line, and leak inspectionParking brake travel and holding testsABS sensor, wiring, and tone ring checksLesson 8Engine oil and oil filter: level checks, contamination, correct type and change standardsThis part addresses engine oil and filter upkeep, including level assessments, contamination signs, viscosity and type confirmation, and change standards based on mileage, time, and operating conditions.
Checking oil level, color, and odorIdentifying fuel, coolant, or metal contaminationSelecting correct oil grade and specificationOil filter type, fitment, and bypass functionService intervals and severe duty factorsResetting maintenance reminders correctlyLesson 9Lighting, wipers, seals, and body rust check listYou will learn to assess exterior and interior lighting, wiper systems, weather seals, and body rust. The part highlights visibility, water entry prevention, and early rust spotting to maintain safety and worth.
Headlamp, brake, and signal lamp testsLens condition, aim, and beam pattern checksWiper blade, arm, and washer operationDoor, trunk, and glass weather seal checksUnderbody and wheel arch rust inspectionRust treatment and protection strategiesLesson 10Cooling system: coolant level, state, hoses, thermostat, water pump assessmentsYou will learn to evaluate coolant level, mix, and state, and check hoses, thermostat, radiator, and water pump. The part underscores leak detection, overheating avoidance, and proper coolant service methods.
Coolant level, mixture, and test toolsPressure testing radiator, cap, and hosesThermostat opening tests and failure signsWater pump bearing, seal, and noise checksInspecting heater core and bypass hosesFlushing and refilling with correct coolantLesson 11Fluids: transmission/gearbox, brake fluid, power steering/EPAS, differential; sampling and replacement periodsIn this part, you will learn to check, sample, and replace essential vehicle fluids, including transmission, brake, power steering or EPAS, and differential oils. Focus is on periods, contamination indicators, and proper fluid types.
Identifying correct OEM fluid specificationsTransmission fluid level, color, and odor checkBrake fluid moisture testing and flushing stepsPower steering and EPAS fluid inspectionsDifferential and final drive oil serviceRecording fluid changes and service history
