↓ Advertise on Defender2 ↓

Home > Technical > Puma 2.2 Electrical Header Location
Post Reply  Down to end
Page 1 of 2 12>
Print this entire topic · 
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
Puma 2.2 Electrical Header Location
Hi,

I've recently experienced an electrical fault with my Puma 2.2, which has caused the instrument cluster, headlights and heated rear windscreen to stop working. I've checked the fuse, earth etc and tested at various points in the circuit, and have narrowed the fault down to the stretch of cable (or its terminations) between fuse 4P and the header that it supplies. However, the cable from fuse 4P disappears into the loom up behind the dash, and I have no idea where exactly the suspect header is located! I was wondering if anyone could shed any light on the location of the header shown in the attached diagram?

Any info at all would be much appreciated!!

Thanks!

Derek.

Click image to enlarge


Last edited by DerekV on 27th Dec 2020 6:06pm. Edited 1 time in total
Post #874821 27th Dec 2020 4:57pm
View user's profile Send private message View poster's gallery Reply with quote
dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

yellow behind center of dash
Post #874830 27th Dec 2020 5:31pm
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
Ah that's fantastic! Thanks! Very Happy

Can I also ask, is there a way that I can find out locations of electrical components from the wiring diagrams/workshop manual etc. I seem to recall that it could be done with the old "RAVE" manual on the TD5s, but I can't seem to find a way of doing it on the Puma.

Thanks!
Post #874837 27th Dec 2020 6:04pm
View user's profile Send private message View poster's gallery Reply with quote
dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

C0285 this and electrical reference library
Post #874839 27th Dec 2020 6:06pm
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
Ah right, I see, thanks! I'm not sure I've got that document. I'll have to try and get hold of a copy.

When you say behind centre dash, is that behind the heater ducts too?
Post #874845 27th Dec 2020 6:40pm
View user's profile Send private message View poster's gallery Reply with quote
macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 983

Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
Search for forum user dgardel. You'll find a link to the docs.

This is what you'll get:


Click image to enlarge


(sorry LHD version but you'll get it)
Post #874851 27th Dec 2020 7:24pm
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
That's brilliant! Thanks very much! That's super useful. I'll download it now.

And also thanks for getting that screenshot for me.
Post #874854 27th Dec 2020 7:38pm
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
I thought I'd just update this thread with the strange resolution of this fault.....

Before having the whole dash out, I thought I'd check that the wire hadn't fallen off the back of the fuse box, so had a look in there with a mirror and torch, and was surprised to find that the fuse I'd been testing didn't have anything connected to it, besides an ignition switched live. I also noticed that there were several green and white wires (the colour I was looking for), and one was connected to a fuse slot with no fuse in it! I replaced the missing fuse and, to my delight, everything was back up and running!! It appears that the fuse had fallen out and completely disappeared! I've searched for the fuse and can't find it anywhere! I can only think that it fell on the floor and got knocked out the car when I got out.

The really confusing thing, and the reason that I'd been testing from the wrong fuse all along, was that there was a 5A fuse in the unconnected fuse slot, which was the fourth slot in from the end, and obviously no fuse in the slot where the fuse had (unbeknownst to me) fallen out, which was also four slots in, but from the other end. Both were also ignition switched. My car doesn't have air con, so I assumed that the empty slot was where the aircon fuse would be, and the other slot with the 5A fuse in was fuse 4P (the one that I suspected of being the faulty circuit). However, the reality was that fuse 4P was missing and the air con slot had the redundant 5A fuse in it, and both being four fuses in from opposite ends, this lead me to read the fuse box diagram upside down!!!

So, just a heads up, although it's probably common knowledge already I suspect: due to the fact that the (under-steering-wheel) fuse box is upside down, fuses can fall out (and seemingly vanish altogether)!!!


Last edited by DerekV on 7th Jan 2021 8:53pm. Edited 1 time in total
Post #876888 7th Jan 2021 4:45pm
View user's profile Send private message View poster's gallery Reply with quote
macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 983

Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
Smile thanks for the update. Thumbs Up

Given that the A/C fuse (F7) should be 10A, is it possible that "somebody" (gremlin / apprentice / Mr Hyde / ...) reinserted a 5A fuse, which had falled out, into the wrong slot? Whistle
Post #876939 7th Jan 2021 8:50pm
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
No worries! Very Happy

You'd think that was the case, but it failed whilst I was driving, so unless there was someone hiding behind my dash trim pulling fuses, then it must have fallen out on it's own!! Very Happy

To be honest, I'm amazed that the fuses can fall out, because they're pretty tight in the holders, but I found several other fuses today that were "on their way" to falling out (and pushed them back in)! As for why there's a 5 amp in the A/C slot - my car doesn't have A/C, so I think LR just give you a spare slot for accessories and fit it with a fairly low-value fuse as standard. My car is a bit weird though, as although it's just a "station wagon", it was one of the last Defenders to be produced, and as such it seems it was "destined" to be an XS, and it appears to have an XS-spec interior wiring loom.
Post #876942 7th Jan 2021 9:13pm
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
macfrank wrote:
Smile thanks for the update. Thumbs Up

Given that the A/C fuse (F7) should be 10A, is it possible that "somebody" (gremlin / apprentice / Mr Hyde / ...) reinserted a 5A fuse, which had falled out, into the wrong slot? Whistle


Sorry, just re-read your post and realised I got the wrong end of the stick to some extent!....Nope, nobody in my family would've reinserted it in the wrong place without me knowing, and the car hasn't been in to any garages or anything, so it is a mystery as to where the missing fuse went!
Post #876945 7th Jan 2021 9:21pm
View user's profile Send private message View poster's gallery Reply with quote
macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 983

Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
Very Happy just pulling your leg Wink Surely no gremlins in your family Smile

Thanks again for the update. I'll check if all fuses are properly inserted.
Post #876949 7th Jan 2021 9:30pm
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
Not in the immediate family anyway!! Rolling with laughter
Post #876958 7th Jan 2021 10:58pm
View user's profile Send private message View poster's gallery Reply with quote
blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16809

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
It is a reasonably well-known problem on the Puma for fuses to fall out of the under-dash fuse box, due its generally poor quality and inverted orientation. When my vehicle left tha factory there was a generous application of an adhesive tape similar to Sellotape across all the fuses to h9old them in, but I don't know if this was a normal factory build procedure or maybe a dealer PDI customisation. I wasn't particularly impressed, and to start with a number of circuits would stop working and I would find the fuse out if its slot and hanging on the tape.

In the end I removed all the fuses one at a time and bent the "legs" of the fuse to put a slight kink in them to make them a tight fit in the socket. Since then I've had no problems with them of any kind.

Some of the retrograde engineering on the Puma was truly astonishing.
Post #876988 8th Jan 2021 9:19am
View user's profile Send private message View poster's gallery Reply with quote
DerekV



Member Since: 12 Oct 2015
Location: Surrey
Posts: 39

United Kingdom 2015 Defender 110 Puma 2.2 SW Montalcino Red
Ah right, I did wonder if it might be a common problem!

Mine didn't come with any "special sellotape" so looks like it may have been a dealer thing.

You're certainly right about some of the "engineering" in the Defender!! I may have to try something similar to your suggestion to stop this from happening too often.
Post #877009 8th Jan 2021 10:15am
View user's profile Send private message View poster's gallery Reply with quote
Post Reply  Back to top
Page 1 of 2 12>
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums