Not sure what you really mean there, something may be lost in translation. Great Video there showing how to test them on the "Bench" ??
However, I have always found that Parktronic Self Diagnosis to always be spot on. So wiring and connectors confirmed then it will always be the sensor highlighted in the fault code, just to be belt and braces we always have a known good about 40cm away so we can employ Swaptronics to either confirm or condemn the control unit / wiring.
As for trying to scope them then the window of opportunity is small, the control unit shuts them down at the first sign of trouble. Not saying it cannot be achieved. A bit tricky if you have 6 sensors but only 4 channels.
Last edited by STC
on Mon Aug 08, 2016 10:50 am, edited 2 times in total.