Fuse box help 420r 2016

[J888PRB]

Hi

Can anyone please assist me with fuse order on my 2016 420r

There's 18 fuses vertically under passenger  side of the dash 

But I have no diagram to know what each fuse is for or what A fuse is supposed to be in each.

Thanks in advance 

[Jonathan Kay]

I have an extensive collection of diagrams! Please send me a Private Message with your email address.

And if you can start sketching the ratings of the fuses and what some of them do that will help a lot.

Jonathan

[Jonathan Kay]

Probably:

Jonathan

[aerobod - near CYYC]

One thing I found Jonathan with that fuse listing that is the same for my R400D is that the fuses don't logically go in order from top to bottom, they are sequenced from the centre in this way:

Books.pdf

[Jonathan Kay]

Thankyou, James. 

The 2021 Owner's Handbook has:

Jonathan

[BrettJ]

Image source: https://www.caterham7diaries.com/post/fuse-and-relay-box-layout

On 420R the diagram by Mark is more accurate than the manual, however the labels are misleading, as having both heated seats on popped the 20A fuse for the "Instruments"

 

 

 

[Jonathan Kay]

That's from a 420, supplied October 2018.

Jonathan

[J888PRB]

Thanks for the help.

that coloured diagram is what i found but my fuse board has different Amp fuses in some. all a bit odd. perhaps just had the wrong fuses in.if anyone is willing to add a picture of their fuse board that would be helpful for me to sort 

thanks again - everyone here always so helpful

 

[cobar]

Looking at the diagrams in #5 and #6, am I correct that is the order when looking at the fuse box from the front?  If so, the relays in my 2022 420R are wired in the reverse order.  In the picture below, from left to right, #2 is the fuel pump, I'm pretty sure #3 is the starter, and #5 (with the jumper wire) is the flasher.  I haven't traced the others.  I wonder if the fuse boxes are hand assembled at the factory and some assemblers use the wiring diagram as a suggestion rather than a mandate?

 

[Jonathan Kay]

Thanks

Do you know why that has the jumper wire rather than a relay or flasher unit?

Jonathan

[cobar]

Yes, because I put it there :)  I am using a Freewheel wireless steering wheel button system that has it's own native flasher relay with user adjustable auto canceling and flasher rate.  That jumper gets a redundant relay out of the way and allows things to function correctly.  

-John

[Jonathan Kay]

Thanks.

And that's one position identified!  : - )

Jonathan

[MattB]

The fusebox in #9 doesn't look like any I've seen in a 7 before, and it's very different to the one in my 2021 420.

For starters it appears to be in the engine bay?

MattB

[cobar]

The fuse box is the factory version that normally sits sideways under the scuttle, but is rotated 90 degrees, then inserted into a 3D printed case that protrudes into the engine bay.  Here are another couple of photos, but I don't want to derail this thread.