Gamith has covered what I'd do. First give it an OBD scan and note fault codes. It is likely to be screaming lots of codes as so much isn't working. Any OBD tool should be able to read the codes, it doesn't need to be fancy. Then, based on any clues given by the scan, work through the fuseboxes checking all the fuses. Also look for any signs of corrosion. Next, pull the relays and check they operate correctly when 12v is applied to the coil: you can find out the coil with a multimeter because it typically is a pair of pins with a resistance of tens or hundreds of ohms, while the contacts read as either 0 ohms or off the scale. Also don't forget grounding. The fuses control power flow from the positive side of the battery, but the negative side of all your auxiliaries are all connected together, often via the chassis. If lots of auxiliaries share a ground then a bad or corroded connection can affect them all. It's worth taking a thorough look for anything that might be corrosion near wiring. I don't have a wiring diagram for the non hybrid, but perhaps someone has one?

It looks like the setup is that it's a 'man in the middle' of the resistive touch panel. Resistive touch uses 4 wires (X+, X-, Y+, Y-) and it seems like this unit has two sets of 4 wires, one in from the display and one out to the native head unit. That means it can intercept touches when it's showing Android and forward them on when showing a screen from the native head unit. When both are combined on one connector you get 8 wires into the Android unit. I can't quite work out the wiring from the pictures as to where the 2x4 to 8 combiner is going (is it the small board with top/bottom/left connectors, or the yellow board?) but the empty connector on the yellow board has a different shape, so maybe it's used with a different model of Android unit with different connectors. Often this kind of thing is like a kit of Lego that you build for different vehicles - the bits can often be found on AliExpress as generic adapter boards. Often they include various connectors of different sizes in parallel and you just connect the one you have. (That was a long way of saying I don't know, but could probably work it out with some clearer pictures. Anyhow, I don't think it's important)

If it were my 2005 model I would go through each fuse with a circuit tester to find any non-functional fuses - bit of a pain I know but this sounds like more than one fuse gone. Looking at my fuse boards I have one mention of VSC in the main engine board: And one in the passenger-side fuse board: Hopefully you have a JOBD reader - does it give any error codes? I hope this helps.

Oh wow, thank you! That is exactly what I'm looking for. Many thanks for that 😁. It does indeed show the water pump, so that's my job for tomorrow morning sorted!

Welcome im sure someone will be along soon with a bit more experience in this in the meantime could you supply me a vin . No I have access to look up system just want to check something

Hi I have a 2012 Alphard 2.4 that has a serious problem. It has a problem with: No power steering No heating cooling No indicators No VSC Airbag light showing No outside temp Changing auto box settings a bit difficult The car starts ok and can be driven but difficult with no power steering or indicators!!! I had been told it might be the main fuse link unit in front fusebox. Ordered one from Japan. Fitted it ( awful Job) put back together and still have the same problems. Anyone say idea what is causing this as it's driving me mad!! Many thanks