I have two warning lights what come on now and then. 1 is the ESP light and the warning light. I plugged a diagnostics machine and it says it's the ABS pressure sensor. I tried resetting the lights and giving the ABS unit a bang with the hammer but it still comes on. Does anyone have any info on what I would need to do. I have been told that I may have to send my unit off as the sensor is inside it. But I have also been told there's 2 sensors below the unit and that it's one of them. Help would be appreciated Thanks.