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 "Full system car diagnosis" means a comprehensive check of all electronic systems of a car through professional diagnostic tools to detect and analyze potential faults and problems. This type of diagnosis usually includes testing and reading fault codes of multiple important systems such as the engine, transmission, brake system, body control, air conditioning system, ABS, airbags, lights, emission control, etc. Usually, professional car diagnostic tools are connected to the car through the OBD II interface to obtain information from the on-board computer system and perform analysis and diagnosis.

 “Action Test or Active Test” is an important function of car diagnostic tools, which is used to activate certain components or systems of the vehicle to test whether they function normally. This test can help technicians determine whether the problem is caused by mechanical failure, electronic control problem, or connection line problem.

1.Component activation: Tests whether the fuel pump, solenoid valve, cooling fan, etc. are functioning properly.
2.System test: For example, activates the ABS pump to check its working condition.
3.Motor and light test: Controls electric windows, turn signals, headlights, etc.
4.Pressure test: Checks whether the pressure of the fuel or brake fluid is normal.
5.Injector test: Checks whether the injector is injecting fuel normally.

 

In automotive diagnosis, Coding refers to reconfiguring or adjusting the vehicle's electronic control unit (ECU) through diagnostic tools to modify or optimize specific functions. It is mainly used to customize vehicle functions, repair system problems, or re-match the system after replacing parts.

 Common application scenarios of Coding:
1. Vehicle function customization:

• Turn on hidden functions (such as automatically folding rearview mirrors, enabling more lighting modes).
• Modify functions such as driving lights and dashboard display.
• Adjust seat or air conditioning settings.

2. System matching and adaptation:

•  Rematch after replacing parts (such as replacing batteries, sensors, control modules).
• Adapt to upgraded hardware or software versions.

3. Fault repair:

• In some cases, system errors or mismatches can be resolved by recoding.

4. Vehicle personalization:

• Modify the number of turn signal flashes and the sound reminder for locking the car.
• Adjust the operation of the electric window or tailgate.

 

 Examples of common special functions:

Here are some common special function classifications and application scenarios in some models:

1. Repair and maintenance functions:
Oil Reset: Reset the mileage or time counter after oil change.
Brake Pad Replacement: Recalibrate the electronic parking system (EPB) after replacing the brake pads.
Battery Registration/BMS Reset: Match the vehicle's battery management system after replacing the battery.
Tire Pressure Monitoring (TPMS Reset): Set or reset the tire pressure monitoring system.
2. Safety system related functions:
Airbag System Reset (SRS Reset): Clear airbag fault codes.
Immobilizer System (IMMO Key Matching): Key matching and immobilizer system settings.
Steering Wheel Calibration (SAS Reset): Reset the steering wheel angle sensor to ensure accurate steering.
3. Power system related functions:
Injector Coding: Reset the injector parameters to optimize engine performance.
Throttle Matching: Calibrate the throttle position to ensure stable idle speed.
4. Emission System Maintenance:
DPF Regeneration: Remove carbon deposits from the diesel particulate filter.
EGR Valve Learning: Reset the learning data of the exhaust gas recirculation valve.
5. System Initialization and Learning Functions:
Transmission Relearn: Relearn the shift parameters for the automatic transmission.
Seat Memory Reset: Reset the memory position of the power seat.
Sunroof Initialization: Reset the function after the sunroof is replaced or repaired.
6. Body System Special Functions:
Light Programming: Adjust the headlight brightness, mode or coding.
AC Initialization: Reset the air conditioning system settings.
7. Customization Functions:
Customization Options: Adjust the door locks, alarm volume, automatic shutdown function, etc.