Swivel base and occupancy sensor confusion

[Guy R]

Hi,
I am in the process of converting my T6 .1 startline LWB transporter (2021) into a day van. While checking out conversion companies, I saw MSCraft's twin sliding base, which I like. I asked the guy who demonstrated the seat to us about the under-seat wiring and what, if any, coding complications this installation would create. That company do a lot of installations and use this base as their go-to bench swivel. He said all the cables, including the occupancy sensors, are repositioned under the carpet lining and that doing so does not throw up any coding errors (or potential MOT issues), it just means the red occupied lights don't come on when a passenger sits down.
So I contacted MSCrafts to purchase one, and they told me it does create a coding issue, including airbag warnings.
So now I'm confused. Who's right?
I'll be grateful for any advice, but please bear in mind I am a complete muppet when it comes to anything technical to do with wiring. From what I can see, four plugs, colour-coded green, red, white and black, will become redundant if I tuck them up the floor carpet.
1. Can anyone tell me what each of those plugs does (I looked in the wiring section in downloads, and I'm none the wiser - I told you I was a muppet).
2. Related to the above, what errors can I expect if those plugs remain unconnected? Would they result in an MOT issue?
3. Has anyone previously installed MSCraft's twin sliding base, and how did they resolve this wiring dilemma?
Thanks in advance for any help,
Guy

 

[Lubrown]

I can’t help on the plugs and find the whole thing as confusing as you do (I too had mixed messages from converters on the wiring for the occupancy sensors).

I would just point out the Vankraft option though, in case you haven’t seen it (Link). The wiring can all stay as is because only the top swivels.
If I were converting a van myself I’d seriously consider this along with their fold flat seat back hinge. Seems a much more sensible way of doing things.

 

[Guy R]

Thanks for the reply. I did have a look at the Vancraft option, but aside from being three times more expensive, the feature I liked with the MScraft version was the ability to move the bench seat back into the 'cargo' area and then rotate it to look out of the doors (a kind of flexible settee)

 

[airhoguk]

Most of the wiring usually tucks into a dip in the floor of the cab to the right of the seat. The only functions you will lose are if a side activated airbag is fitted to the bench seat itself (this is usually overcome by connecting a resistor between the relevant terminals on the air bag connector). Seat occupancy detects whether you have a passenger and is nulled when the seatbelt is fitted in the receiver ( I think this only works on one of the seats of the bench though). If the pressure pad in the seat isn’t connected then there is no signal to hull with the seatbelt.

 

[ombracs]

Most of the wiring usually tucks into a dip in the floor of the cab to the right of the seat. The only functions you will lose are if a side activated airbag is fitted to the bench seat itself (this is usually overcome by connecting a resistor between the relevant terminals on the air bag connector). Seat occupancy detects whether you have a passenger and is nulled when the seatbelt is fitted in the receiver ( I think this only works on one of the seats of the bench though). If the pressure pad in the seat isn’t connected then there is no signal to hull with the seatbelt.

Hello airhoguk, do you think that you only loose the ability of passengers to have their seatbelt on ? there is not a risk of NO deployment of front dash airbag because it looks that nobody is seated ?
I ask this question because i have swapped front double seat (with airbag and occupancy sensor ) with a single seat (no airbag and no occupancy sensor ). I have resolved airbag light with a resistor and i didnt plugged any belt or occupancy sensor but i m worried about the front dash airbag ... somebody online think that without occupancy it will not deploy in case of accident .... do you have some info ?

thank you
Filippo

 

[airhoguk]

On my T5.1 and 6.1 there is a cable that connects to the seatbelt receiver which acts as the occupancy sensor I believe as there is no connection to a pad in the seat (I’ve sometimes had quite heavy stuff on the passenger seat and nothings happened regarding a seatbelt warning, only the drivers seat). I would assume and am prepared to be shot down that the passenger airbag works if the receiver is connected.

 

[ombracs]

Airhoguk thank you. On your t6.1 you have an original double passenger seat? Because in my car i can see the belt connector that now is unplugged…. i could try to connect it… i cant find any original other cables … can you find me a picture of the underseat connections? it can be useful thanks

 

[Psm1975]

As mentioned here, you can safely leave the connectors for occupancy sensor and seatbelt sensor unplugged with no effect on the airbags.

Seat removal - electrics

I thought I’d done all the research I needed, but apparently not. Today I’ve removed the seats in order to run my 12v feed to my leisure battery, and also the EHU wiring. There’s a load of wiring under the seat, which the forum has shown me how to ‘hide’. What I wasn’t expecting were the 4...

www.t6forum.com

 

[ombracs]

As mentioned here, you can safely leave the connectors for occupancy sensor and seatbelt sensor unplugged with no effect on the airbags.

Seat removal - electrics

I thought I’d done all the research I needed, but apparently not. Today I’ve removed the seats in order to run my 12v feed to my leisure battery, and also the EHU wiring. There’s a load of wiring under the seat, which the forum has shown me how to ‘hide’. What I wasn’t expecting were the 4...

www.t6forum.com

thank you !!