The diagnostics had me scratching my head :indecisiveness:.......I they mean a multi meter to check connections maybe , it sounds techo though..........have found folks that the only time their van gets checked is at service time, no wheel nut checks, no rolling around underneath looking at lines, checking spring shackles, even found one fella who didn't even know where to jack a wheel from let alone where the jack was..............................mind you at the moment I'm seriously thinking of getting a mobile fella out to adjust the brakes on Big Mal as crawling underneath and stuffing around on the gravel doesn't appeal to me, might just ring for a quote so i will get inspiration to do it myself.
My basic one is start at the front and check everything till I get to the back.