Loading IAR content
Results are grouped by useful content—not by paid placement or guessed parts. Describe the symptom naturally; IAR recognizes common alternate wording while keeping exact codes and vehicle details precise.
Your available vehicle context is included where the destination supports it. AI guidance stays separate from verified IAR source records.
May access modules, commands, tests, and live data depending on vehicle and subscription coverage.
Diagnostic 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 toolsApplies a verified fastener specification within the tool’s rated range. Calibration and technique matter.
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 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 toolsSeparate state of charge, battery condition, and connection problems before blaming the starter or alternator.
Test-first procedureCheck whether the vehicle is replenishing electrical energy under its intended operating strategy instead of applying one universal voltage rule.
Test-first procedureFind resistance in a loaded power or ground path without assuming that continuity or an unloaded voltage proves the circuit is healthy.
Test-first procedureInvestigate key-off battery drain only after the vehicle has entered its correct sleep state and the evidence is preserved.
Test-first procedureSeparate start-request, interlock, cable, ground, solenoid, and starter-motor evidence before bypassing the circuit or replacing the starter.
Test-first procedureSeparate missing ignition, fuel delivery, control, synchronization, and mechanical evidence after the engine is confirmed to crank.
Test-first procedureUse warning behavior, scan context, cylinder pattern, and controlled contribution evidence to separate ignition, fuel, air, and mechanical branches.
Test-first procedureSeparate actual tire-pressure loss from sensor detection, compatibility, registration, and receiver concerns without guessing a universal relearn process.
Test-first procedureUse controlled pressure on a cool system to investigate leaks without opening a hot, pressurized cooling circuit.
Test-first procedureCompare operating pattern, temperature data, and airflow evidence without applying a universal gauge, infrared, or fan rule.
Test-first procedureSeparate vibration caused by brake application from a shake that follows road speed before choosing a brake, wheel, tire, hub, or suspension path.
Test-first procedureIAR does not passively record this search. Save feedback only if you want a local note that you can export later for editorial planning. VIN-like vehicle identifiers are redacted before local save.