I had the service engine light, ABS light and brake warning light come on on my van. When these lights illuminated the odometer and speedometer quit registering speed and miles. I changed the speed sensor in the differential and unhooked the positive battery cable to clear the codes. After hooking up battery cable and taking for a test drive the service engine light went out but the ABS and brake light are still on and the speedometer and odometer are still not registering speed or miles. Any thoughts?