I have an 05 Dodge Ram 1500 4WD and need to replace the front wheel bearings. The windows sticker says 4 wheel disk with rear ABS. When I look under the truck there is some type of sensor lead that looks like its running to the hub assembly on the driver's side but nothing on the passenger side? I didnt expect to see one on either, can someone shed some light?

Thanks in advance

 

Anyone?

 

Maybe it uses a sensor on the front wheel to know that the truck is rolling so that the abs will activate? I never noticed one on my 08 2wd.