I have a 99 durango 5.9L. The ABS and Brake lights come on intermittently and the full time 4x4 light does not work. It does go into 4x4, the light just doesn't come on. Speedo works fine. I'm assuming since it is affecting the 4x4 light that it may be a sensor that is on one of the front two wheels. Does anyone have any advice on which sensor it might be and where it is located. I do have a digital multimeter, so if there is a way I can check them out first let me know where to locate them and I'l do so. Thanks for any help you can give.