It has been tested and confirmed that Launch X431 PAD V Elite can perform wind lift power relay test on 2020 JAC Refine M4 perfectly.
It requires the X431 HD Software Authorization and Adapters Pack.
Connect X431 PAD V and the JAC vehicle correctly
Select “Local Diagnose”
Select JAC-> JAC DIESEL software (V19.54 or above)
Select “JAC M4”
Click “Smart detection” to detect all systems
Select “BCM (Body Control Module) (Type 2)”
Click “ENTER”
Select Active Test-> Wind Lift Power Relay
Click “OFF” or “ON”, then the value is changed at the same time