bought a discovery second hand,was going,fine until hdc system fault showed up on the display,and suspension lowered.can reset it by turning off and restarting.but about ten minutes down the road,same bloody thing.fairly mechanical minded so no worries on the tools,seen a lot of this issue on forums and would appreciate any input on narrowing down the problem.can anyone tell me how they sorted their problem,be it garage or themselves,what did they physicly do to solve it,kind regards jim