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LAUNCH X-431 V User Manual — Vehicle Diagnosis
22
4.5.4 Special Function
This option allows you to detect whether the system parameters are normal or
not. It mainly includes: Injector test, fuel pump test, purge control solenoid and
so on.
Take “1# injector” as an example.
To detect whether 1# injector works normally or not, tap “1# injector”, the system
will automatically carry out the function. After complete, a prompt dialog box will
pop up on the screen.
4.5.5 Reset Service
In addition to amazing & powerful diagnostic function, X-431 V also features
various service functions. The most commonly performed service functions
contain:
y Oil Reset Service
y Steering Angle Calibration
y Electronic Parking Brake Reset
y Battery Register / Battery Maintenance
y ABS Bleeding
y Electronic Throttle Position Reset / Learn
y Diesel Particulate Filter (DPF) Regeneration
y Tire Pressure Monitor System Reset
Oil Reset Service
This function can be performed in the following cases:
1. If the service lamp is on, you must provide service for the car. After service,
you need to reset the driving mileage or driving time so that the service lamp
turns off and the system enables the new service cycle.
2. After changing engine oil or electric appliances that monitor oil life, you need
to reset the service lamp.
Steering Angle Calibration
1. To reset the steering angle, first find the relative zero point position for the car
to drive in straight line. Taking this position as reference, the ECU can
calculate the accurate angle for left and right steering.
2. After replacing the steering angle position sensor, replacing steering
mechanical parts (such as steering gearbox, steering column, end tie rod,
steering knuckle), performing four-wheel alignment, or recovering car body,
you must reset the steering angle.
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