I have all the necessary parts to fit dss to my 2017 Range Rover l405 which uses a different loom from previous years and plugs into the vplgt0204 module which controls both the edt and the dss. Before fitting the sidestep motors to the underside, I thought I would wire them up and plug them into the loom while it’s loose to check the motors activated when the doors were opened - they didn’t. I have a 30amp fuse in position 39 on the fuse board and the online fitting instructions from Land Rover seem pretty basic and straightforward suggesting it is just plug and play. I didn’t disconnect the battery as I didn’t want to lose all my settings and I’m wondering if the system needs to reset to recognise that the motors are connected but thought I would ask first if anyone else had fitted dss to a 2017 onwards car and whether they had encountered a similar issue?

I'm not sure if this any help, but when i fitted my dss to my l322 i did disconnect the battery and once everything was in place bar fitting the steps, i had to press the button once when the battery was reconnected and then turn the ignition on but don't start it then hold the button in for 5 seconds which in turn deploys the steps ready for fitting. I'm not sure if this is the same for L405 models, you can actually download the manual somewhere online but can't think where. However, saying that another guy on here fitted steps to his 2010 model L322 and found that the wires in the plugs going to the module were in the wrong place as his steps went in reverse, as in door opens, steps go in, shut door steps go out. I have actually read somewhere else that sometimes the module could be the wrong part number so worth checking you have the right module part number for the L405. And if I'm not much mistaken, there are 2 different looms for the L405 just like the L322 which i found out the hard way. Sorry i can't be much help on this but giving it a go with my info may just help.

Thanks for the info. I know there are at least three different looms for the L405 dss depending on the model years. I have the correct figment loom for the car and the correct module so I will have a go at disconnecting the battery as per the schematic instructions ( they don’t specify having to let the ecu know there are sidesteps fitted which they do for some models so I presumed it should be plug and play) my vehicle has the infotainment screen so again, I don’t know if that would automatically update without plugging into a Land Rover sdd laptop to tell the vehicle it has steps fitted. Don’t you just love technologically!

Hello guys,
I recently fitted mu deployable tow bar on a 2017 model.It didn’t work and it didn’t had the controls on the infotainment until was programed.Hope this will help

who did you use to do the programming?

I managed to find a good guy close to where I live,in Essex.It cost me £200