DHS on mk3.75

The mk3.75 DHS control unit cannot be reprogrammed (fault codes cleared) I have repaired many mk3.75 mx5s and have tried everything the only solution was making sure replacement rams any broken bumper sensors were replaced and the DHS control unit was replaced with second hand good one or a new one current new retail price £250 and rams £315 each we sell replacment kits for £400 (two rams and a control unit)

Does it need reprogramming by Mazda somehow when replaced ?
Where is it located ?

hello

mazda will only say replace the DHS control unit i havent come across anyone yet who is reprogramming these units the unit is located next to the drivers rear strut top on a alloy vertical bracket it has three yellow plugs 2013 to 2015 mk3.75 mx5s

i have everything in stock for the 2013 to 2015 DHS system if you get stuck all removed from a undamaged 2013 mazda mx5 mk3.75 2.0 sport tech nav roadster

regards