How many special functions it supports, it depends the specific vehicle model. LAUNCH X431 V+ Smartlink HGV Truck Professional Diagnostic Tool. Adblue test ，. This heavy duty truck scanner diagnostic tool is available for you to achieve active(auto) regen, passive regen, DPF related information reset, DPR state reset, forced DPR regen, differential pressure test, DPD forced regen, etc.
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