Just as a matter of interest, just like to say what a great tool TOAF is,especially for us owners out on the other side of the planet.
As a point, had a fault in the reversing sensors on my 75 doer upper.
According to all the info I could find could have been a number of things as the was a longish high beep when selecting reverse but no sensors appeared to be working.
Forums suggest you put your ear down to the sensor and if you here a faint clicking the sensor is working.
Did that, all the sensors were clicking.Checked wirig,sensor unit etc, thought id try TOAF, under the PDF module,errors came up faulty right rear sensor !!!
Sure enough,pulled the bumper off and it was the right rear sensor !!!
While I had the bumper of did sealed up the infamous leaky air vents and also the tail light seals.
For the info of those interested ,if the reverse is engaged and one or more of the sensors are duff,you get a long high pitched sound out of the sounder but no working sensors, when its working properly and you engage reverse you get a short lower pitched sound for a short time and then silence.
Found a good way to test them if your by yourself and you have a garage with automatic door,close the door when its close to the car !!