System-wide diagnostic tools：
The scanner can read DTCs and data streams, perform active tests, and encode all systems. Examples include: engine/automatic transmission/airbags/anti-theft system/key coding/ABS/cruise control/instrument system/adaptive suspension/seats/doors/trunk door/steering angle/air suspension/body system/electronic power steering and motor assistance/power steering/tire pressure monitoring/rain sensor/four-wheel drive system/stabilizer bar/intelligent parking assist/door motors/audio system/air conditioning/automatic transmission/anti-theft system/soft top/headlight leveling/central locking/automatic clutch/DPF reset/power windows/door lock programming/rear window defroster/xenon headlights/windshield wipers/fuel heater/transfer case/seat memory/oil life reset/sliding doors/electronic throttle/navigation system/rollover sensor/cruise control/multifunction steering wheel.

Two-way control (active testing)：
The diagnostic tool supports active testing (two-way control), allowing you to request information or command modules to perform specific tests and functions. For example, in OBD II General Information Mode 1, you can send an information request to the Powertrain Control Module (PCM), which will then send the information back to the diagnostic tool for display. Furthermore, the LAUNCH X431 PRO3S+ can also drive relays, injectors, ignition coils, or perform system tests.

ECU coding：
Each automotive actuator has a recorded code in the ECU, which forms the basis for the car's computer to control its operation. The LAUNCH X431 PRO3S+ is equipped with advanced ECU coding capabilities, solving the following problems: 1. After replacing a faulty actuator or certain components, this function is needed to generate new codes and identify the new actuator. 2. Changing codes through ECU coding can easily improve vehicle performance or activate advanced vehicle functions. 3. ECU coding enables multiple automotive systems to recognize each other, allowing actuators to function properly.

Supports over 30 special reset service functions:(Note: You can find 15 commonly used reset functions in the reset menu; other special functions can be found in the vehicle brand diagnostic software menu.)Oil Light & Oil Reset ServiceAfter changing the engine oil, the engine oil life system can be reset, resetting the computer oil life.Electronic Parking Brake ResetCrucial for maintaining the safety and efficiency of the electronic braking system.BMS, BAT, Battery Maintenance, Battery RequestAllows scanning tools to assess battery state of charge, monitor closed-circuit current, record battery replacement information, and activate the vehicle's dormant state.DPF (Diesel Particulate Filter) RegenerationSpecifically designed for diesel particulate filter systems, including DPF regeneration, DPF component replacement learning, and DPF learning after engine control unit replacement.SAS, Steering Angle CalibrationAids in clearing the steering angle sensor fault memory and plays a crucial role in steering angle sensor calibration.Tire Pressure Monitoring System (TMPS) ResetImportant for displaying sensor IDs in the vehicle ECU, entering TPMS sensor replacement IDs, and testing sensors. Anti-theft and IMMOIt is primarily used to disable lost vehicle keys and program new replacement key remotes.ABS BleedingABS brake bleed, causing the brake pads to harden after air is expelled.Throttle, Electronic Throttle Position Reset/LearningThe throttle body is a tubular structure containing a rotatable flat valve (butterfly valve) used to control the amount of air entering the engine. In fuel-injected vehicles, the throttle position sensor and airflow sensor communicate with the computer, which uses this information to supply the required amount of fuel to the injectors. After clearing fault codes or performing repairs, the throttle position sensor position must be relearned.Gear LearningEven disabling a particular injector may overlook injector leaks and partial injector failures. Other malfunctions in the ignition system and mechanical components may also prevent engine speed from dropping when injectors are shut off.AFS Reset (Adaptive Front-lighting System)It detects ambient light and then decides whether to automatically turn on the headlights. It can also adjust the headlight beam angle in real time by monitoring vehicle speed and body posture. SUS ResetThis function is required to adjust the vehicle height sensor's level when the vehicle height sensor and control module in the air suspension system are replaced, or when the vehicle's level is incorrect.EGR AdaptationReduces nitrogen oxides (NOx) in exhaust gases, improving fuel economy under partial load.More features await your discovery…

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