LAUNCH
X-431 PAD V ELITE
User Manual
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performed to reset tire pressure and turn off the tire pressure MIL.
2. Tire pressure is too low, tire leaks, tire pressure monitoring device is replaced or installed, tire is replaced, tire
pressure sensor is damaged, and tire is replaced for the car with tire pressure monitoring function.
6.6 Gear Learning
This function enables you to perform tooth learning for the car, to turn off the related Malfunction Indicator Light (MIL).
It needs to be performed in the following cases:
1. After the engine ECU, crankshaft position sensor, or crankshaft flywheel is replaced.
2. The DTC 'tooth not learned' is present.
6.7 Anti-theft Matching
This function enables you to perform the anti-theft key matching function, so that the immobilizer control system on the
car identifies and authorizes remote control keys to normally use the car.
It needs to be performed in the following cases:
• When the ignition key, ignition switch, instrument cluster, engine control unit (ECU), body control module (BCM), or
remote control battery is replaced.
6.8 Injector Coding
Write injector actual code or rewrite code in the ECU to the injector code of the corresponding cylinder so as to more
accurately control or correct cylinder injection quantity.
After the ECU or injector is replaced, injector code of each cylinder must be confirmed or re-coded so that the cylinder
can better identify injectors to accurately control fuel injection.
6.9 Battery Matching
This function can reset the monitoring unit of the car battery, by clearing the original breakdown information about the
lack of battery power to rematch the battery.
It needs to be performed in the following cases:
1. The main battery is replaced. The replacement of the main battery needs to utilize battery matching to clear the
former information about the lack of power, thus avoiding false information detected by the relevant control module
which may cause the failure of some electronic auxiliary functions. For example, the vehicle automatically stops; the
sunroof can’t work by one key; electric window can’t open and close automatically.
2. The battery monitoring sensor is replaced. The battery monitoring sensor uses the battery matching function to
re-match the control module with the monitoring sensor, so as to detect the use of the battery power more accurately,
and avoid receiving wrong information from instrument prompts which will cause false alarms.
6.10 Diesel Particulate Filter (DPF) Regeneration
This function can help remove PM (Particulate Matters) from the DPF filter by using combustion oxidation methods
(such as high temperature heating combustion, fuel additive or catalyst reduce PM ignition combustion) to keep the
performance of the filter stable.
It needs to be performed in the following cases:
• The exhaust back pressure sensor is replaced.
• The PM trap is removed or replaced.
• The fuel additive nozzle is removed or replaced.
• The catalytic oxidizer is removed or replaced.
• The DPF regeneration MIL is on and maintenance is performed.
