You need to disconnect the main electrical connector from the abs module. Please pardon the chicken scratch writing. Pins 3 & 4 of the main abs connector go to one front sensor as does pins 17 & 18 go to the other. I’m not 100% sure what the ohms should be but, they should be reading relatively close. You may even have to get the front wheels off the ground so you or an assistant could turn the wheels by the front and see what the resistance does on both sides.