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Applies a verified fastener specification within the tool’s rated range. Calibration and technique matter.
Basic hand toolsChoose correct drive size, fit, access, and fastener engagement. A socket that fits loosely can damage hardware.
Basic hand toolsUseful where a socket cannot reach. Use the correct size and loading direction.
Basic hand toolsProvides leverage for removal. It is not a substitute for a torque wrench during final tightening.
Basic hand toolsReads supported generic codes and data. Access does not guarantee manufacturer-enhanced coverage.
Diagnostic toolsMay access modules, commands, tests, and live data depending on vehicle and subscription coverage.
Diagnostic toolsMeasures electrical values when connected and configured correctly. Never guess the circuit or meter mode.
Diagnostic toolsEvaluates battery performance using a defined method after state of charge is considered.
Diagnostic toolsMeasures pressure on compatible systems. High-pressure direct injection requires specialized procedures.
Diagnostic toolsCompares cranking pressure under controlled conditions; interpretation depends on engine and test setup.
Diagnostic toolsHelps locate certain intake or EVAP leaks when used at an approved pressure and connection point.
Diagnostic toolsDisplays signal shape over time. Correct probes, grounds, scales, and known-good interpretation are essential.
Diagnostic toolsApplies controlled pressure to a cool system for leak inspection. Never exceed the specified test pressure.
Specialty toolsReads, activates, programs, or registers supported sensors; capabilities and subscriptions vary.
Specialty toolsControls stored spring energy. Incorrect equipment or use can cause fatal injury.
Specialty toolsRetracts or rotates compatible pistons. Electronic parking brakes may require a service mode.
Specialty toolsA general replacement workflow for a conventional 12-volt battery that has already been tested and identified as faulty.
intermediateA general starter-replacement overview after testing the battery, cables, control circuit, and engine rotation for the exact vehicle.
advancedA general alternator-replacement overview after checking battery condition, belt drive, wiring, control strategy, and charging behavior for the exact vehicle.
advancedA clean general workflow for inspecting and replacing a serviceable engine air filter without introducing debris or creating an intake leak.
beginnerA safety-first overview of an oil and filter service with strict boundaries around support, oil specification, capacity, drain hardware, and level verification.
intermediateAn intermediate repair overview that begins with complete brake inspection and preserves strict boundaries around support, service limits, torque, electronic parking brakes, and bedding.
professional recommendedGeneral overview only. Confirm the diagnosis, safe vehicle support, service limits, and braking before driving.
professional recommendedAI guidance is separate from verified IAR sources.
Feedback stays on this device and isn’t sent to IAR. Vehicle identifiers are redacted before saving.