Today all 4 lights (ESP/BAS, ABS, BRAKE, TRACTION CONTROL) came on at once on my 2008 Chrysler Town and Country. I tried pulling codes manually with the key method but no codes came up. The 4 lights do not come on until I hit 12 mph. I am thinking it is the front wheel speed sensors. Does this diagnostic make sense? Is this an easy DIY fix? I cannot find any instructions on the proper way to do this. Thanks in advance for your answers.