Problem: The DPF function of the LAUNCH X431 PRO ELITE does not work. I executed “Regeneration of Diesel Particulate Filter” in the function menu and followed the instructions correctly: “Ignition ON And Engine Stopped; Command NOW Waiting Push Start”. But the device stops executing the function and nothing happens.
Operation suggestion:
Try a few more times. If the operation is correct, the DPF may be seriously clogged.
DPF (diesel particulate filter) regeneration function: After the vehicle has been used for a period of time, there are too many diesel carbon particles adsorbed in the DPF device. By executing this function, the engine runs at high speed for a long time, and the high-temperature exhaust gas is heated and burned to remove the diesel carbon particles, so that it returns to normal.
You can disassemble the DPF to check the situation. If the DPF is severely clogged (covered with a thick layer of carbon particles), ordinary heating methods cannot clear it. It is recommended to clean the DPF first, then use the DPF reset function of the X431 device, and finally perform the DPF regeneration function.