Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
LED warning lights for DASH voltage?	VWKat	21 Jun 2026, 19:02	Once this week	Electrical & Instrumentation

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Last post

Fuel gauge not working

Last post by AngeloEvs « 19 Apr 2022, 14:12
Replies: 3
by Kev.i.n » 18 Apr 2022, 18:50

Hi all, I'm a newbie to the VW t25 life, just purchased Betsy our 1982 air-cooled 2ltr petrol Devon Moonraker! In love with her so far as are the...

3 Replies

916 Views

Last post by AngeloEvs
19 Apr 2022, 14:12
Wiring woes multiple, start somewhere...

Last post by Robsey « 18 Apr 2022, 19:18
Replies: 7
by Paul7502 » 18 Apr 2022, 12:20

Lots of electrical problems and a naff diagram.

mg]

I can't make head nor tail of the diagram, some things are not numbered and some don't match...

7 Replies

1072 Views

Last post by Robsey
18 Apr 2022, 19:18
Indicator issue - Arghh

Last post by Robsey « 18 Apr 2022, 19:05
Replies: 8
by Stokie1403 » 10 Apr 2022, 13:02

Hi all,
Firstly, thanks for any help/advice I’m a total novice and learning as I go. However electrical issues have me totally stuck

After getting...

8 Replies

1946 Views

Last post by Robsey
18 Apr 2022, 19:05
Leisure Battery Wiring Qs - Wiring routing for Battery under bed

Last post by ManicGTI « 18 Apr 2022, 09:51

by ManicGTI » 18 Apr 2022, 09:51

Apologies if asked before, i've been trawling but can't find much specifics on this.

Van is a twin slider (no full length kitchen), Full width RnR...

0 Replies

1801 Views

Last post by ManicGTI
18 Apr 2022, 09:51
2021 Battery Recomendations Please

Last post by davidoft1 « 18 Apr 2022, 08:53
Replies: 10
by Dreaddybear » 17 Aug 2021, 18:05

Hi All
Im a newbie and just wanted to ask the forums opinion when it comes to Battery recomendations (the battery that starts the vehicle, not the...

10 Replies

2609 Views

Last post by davidoft1
18 Apr 2022, 08:53
2.1 dj high idle .....?

Last post by maxstu « 13 Apr 2022, 19:51
Replies: 4
by spanishfly » 03 Apr 2022, 11:20

I have trawled the wiki/net first feel sure this is something simple.

Van starts first kick idles around 950rpm for about 5 secs then revs to 1700...

4 Replies

879 Views

Last post by maxstu
13 Apr 2022, 19:51
New battery drained to 4.4v in a week

Last post by Samanthington « 13 Apr 2022, 17:09
Replies: 6
by Samanthington » 04 Apr 2022, 17:05

🙄

- Brand new (1.5weeks old 😖) Bosch S4 007 battery from Tayna…chosen after checking out the forums here (thanks Forums!)

- Nothing but the clock...

6 Replies

1046 Views

Last post by Samanthington
13 Apr 2022, 17:09
GoWesty PCB Diesel -BoD

Last post by liakos1982 « 13 Apr 2022, 12:23
Replies: 6
by liakos1982 » 12 Apr 2022, 12:54

Hi, I am wondering whether any members have feedback on the GoWesty PCB and the buzzer of doom on Diesel vehicles?

I have a 1987 1.7D, I have been...

6 Replies

993 Views

Last post by liakos1982
13 Apr 2022, 12:23
South African T25 / T3 starting problem

Last post by lexussoarer1996 « 11 Apr 2022, 21:30
Replies: 2
by lexussoarer1996 » 11 Apr 2022, 16:09

Hi , does anybody know where the fuel pump relay is on a 2.5i, after changing the clutch , fuel pump, fuel filter and new injectors it now wont...

2 Replies

677 Views

Last post by lexussoarer1996
11 Apr 2022, 21:30
Solar Panel Controller Connection

Last post by Annieclover « 11 Apr 2022, 04:39
Replies: 18
by keynsham1 » 19 Dec 2021, 12:59
1

2
This might be a daft question but here goes anyway I have just finished rewiring the whole of the 'camper' part of my T25 during it's refurbishment....
18 Replies

3453 Views

Last post by Annieclover
11 Apr 2022, 04:39
External fog light working - can I re-route wire & bulb into cluster

Last post by Aidan « 08 Apr 2022, 19:51
Replies: 2
by Middle29 » 08 Apr 2022, 15:45

Hello all...

I have an external fog light that keeps coming loose. I would like to remove it & wire it into the main lights. LHD. I have a read a...

2 Replies

696 Views

Last post by Aidan
08 Apr 2022, 19:51
"D'oh!"

Last post by ZsZ « 08 Apr 2022, 08:33
Replies: 2
by T25Hugh » 08 Apr 2022, 07:21

Advertised as a size that will fit my under seat compartment. Waited a fortnight for it and ... !!!

2 Replies

642 Views

Last post by ZsZ
08 Apr 2022, 08:33
Maximum Alternator Current - 1989 1.6TD JX

Last post by bigherb « 04 Apr 2022, 21:38
Replies: 3
by Spailpin Fanach » 03 Apr 2022, 08:02

Hi all

Wondering what's the max current for the alternator on my 1989 1.6TD JX Westfalia California poptop van with 5 speed gearbox.

I'm...

3 Replies

933 Views

Last post by bigherb
04 Apr 2022, 21:38
Westfalia Wiring

Last post by irishkeet « 03 Apr 2022, 09:48
Replies: 10
by tlg » 19 Feb 2022, 18:33

Maybe better in the electrics section but thought i'd start here.

Trying to make sense of our california wiring system whilst removing cabinets for...

10 Replies

2458 Views

Last post by irishkeet
03 Apr 2022, 09:48
headlights flickering with no ignition

Last post by AngeloEvs « 29 Mar 2022, 16:36
Replies: 4
by Jimthejock0301 » 29 Mar 2022, 09:52

My T25 headlights are flickering on and off with no ignition also in dash cluster blue headlight led showing i have tried to disconnect main...

4 Replies

867 Views

Last post by AngeloEvs
29 Mar 2022, 16:36
83 Westy split charge

Last post by waltraud « 27 Mar 2022, 21:42
Replies: 2
by waltraud » 27 Mar 2022, 09:22

Can anyone help identify some wires on my 83 West split charge relay. I'm updating it to a slightly more modern replacement with thicker cable. There...

2 Replies

1069 Views

Last post by waltraud
27 Mar 2022, 21:42
Cleaning starter motor stator and brushes

Last post by mikeybjettaman « 22 Mar 2022, 10:28
Replies: 5
by mikeybjettaman » 31 May 2018, 07:43

Hi all,
I created a video showing some work I did on my T25 starter motor and I thought I would share it with you.

5 Replies

2265 Views

Last post by mikeybjettaman
22 Mar 2022, 10:28
battery drain on ignition system?

Last post by jigarai « 18 Mar 2022, 21:25
Replies: 15
by jigarai » 14 Feb 2022, 15:35
1

2
Hi folks,

I've got an issues with my cranking battery as follows:

It is quickly flat when I leave the keys in with the ignition on - quickly as in...
15 Replies

4247 Views

Last post by jigarai
18 Mar 2022, 21:25
Installing CRX50 fridge - where do the screws go?

Last post by MidLifeCrisis « 18 Mar 2022, 12:48
Replies: 2
by sweetaswesty » 12 Mar 2022, 12:22

So I'm feeling pretty stupid but in my defence the installation instructions for this expensive fridge are almost non-existent.
I know you have to...

2 Replies

1172 Views

Last post by MidLifeCrisis
18 Mar 2022, 12:48
Horn circuit weird fault

Last post by Jay Peg « 15 Mar 2022, 17:36
Replies: 3
by Jay Peg » 09 Mar 2022, 11:49

Hi there,

I have a strange fault on my horn. When I turn the ignition key to on, the horn works after starting the engine and engine is running the...

3 Replies

866 Views

Last post by Jay Peg
15 Mar 2022, 17:36
Fan turning on when battery connected

Last post by Robsey « 15 Mar 2022, 01:50
Replies: 8
by jamesling » 13 Mar 2022, 13:56

Hi all,

Had my van standing for a while and now when I reconnect my battery, the fan instantly goes on and doesn't seem to want to shut off.

Blown...

8 Replies

1373 Views

Last post by Robsey
15 Mar 2022, 01:50
Unknown wires

Last post by Vwjue73 « 09 Mar 2022, 13:22
Replies: 2
by Vwjue73 » 09 Mar 2022, 08:52

Hi guys taken my dash out for headlight relay upgrade and found these loose ends anyone know what they are to speakers maybe?2.1 dj caravelle gl Tia

2 Replies

816 Views

Last post by Vwjue73
09 Mar 2022, 13:22
Windscreen washers

Last post by Michael4 « 08 Mar 2022, 08:32
Replies: 2
by Michael4 » 07 Mar 2022, 18:06

Silly but simple question I hope...

What colour is the earth wire for the washer pump? Mine are dodgy again and I've forgotten what I did last time,...

2 Replies

720 Views

Last post by Michael4
08 Mar 2022, 08:32
Oil pressure switch jx diesel

Last post by Stirls2 « 05 Mar 2022, 15:20
Replies: 5
by Stirls2 » 04 Mar 2022, 11:18

Hi guys, the oil pressure switch on my jx td has failed it's a brown switch which seems to be incorrect for that engine as the only ones on the...

5 Replies

3058 Views

Last post by Stirls2
05 Mar 2022, 15:20
RCD not working

Last post by T25boy71 « 28 Feb 2022, 21:16
Replies: 8
by T25boy71 » 26 Feb 2022, 17:05

Hi all
The mains power in my van has stopped working I’ve has a look and I’m thinking it’s the RCD, i going to get a new one but not sure which one...

8 Replies

1179 Views

Last post by T25boy71
28 Feb 2022, 21:16
Can you check my wiring?

Last post by cobblers « 26 Feb 2022, 20:28
Replies: 8
by Negativegravity » 17 Feb 2022, 10:58

Morning all, just wondered if someone could look over my wiring for a new leisure setup. Specifically, the location of the earth when using the...

8 Replies

2306 Views

Last post by cobblers
26 Feb 2022, 20:28
1984 conundrum

Last post by Will89 « 24 Feb 2022, 09:43
Replies: 47
by DoubleOSeven » 09 Sep 2019, 10:54
1

2

3

4
Experienced a loss of power at 2500rpm, very intermittent initially. Now I have loss of power under load, a back fire on occasion. I’ve been through...
47 Replies

14901 Views

Last post by Will89
24 Feb 2022, 09:43
SA 2.5 wiring

Last post by lexussoarer1996 « 19 Feb 2022, 20:06
Replies: 8
by lexussoarer1996 » 19 Feb 2022, 12:09

Hi ,

A bit of a long shot but has anybody got wiring diagrams for SA 2.5 , it wont start from the key , but starts easy when the starter is shorted...

8 Replies

1466 Views

Last post by lexussoarer1996
19 Feb 2022, 20:06
Westfalia California routing wiring loom for charger and eberspacher

Last post by tlg « 19 Feb 2022, 18:06
Replies: 3
by sweetaswesty » 12 Feb 2022, 14:48

I'm finally at the stage of refitting the water and kitchen cabinets and then the seat/bed on our California. But I just need confirmation of the...

3 Replies

871 Views

Last post by tlg
19 Feb 2022, 18:06
engine bay black box

Last post by Robsey « 18 Feb 2022, 20:05
Replies: 1
by jim potter » 18 Feb 2022, 17:29

hi all,

currently redoing some wiring.
what feed should go to the pole in the engine bay black box ?
where should it be taken from ?

is it from...

1 Replies

641 Views

Last post by Robsey
18 Feb 2022, 20:05
Syncro 1600 speedo

Last post by spanishfly « 18 Feb 2022, 09:16
Replies: 3
by spanishfly » 25 Nov 2021, 21:45

Please can anyone tell me the difference (apart from the face) between a syncro mph 1600 and a 2wd mph 805 speedo?

3 Replies

886 Views

Last post by spanishfly
18 Feb 2022, 09:16
Webasto BBW 46 digital controller question

Last post by silverbullet « 16 Feb 2022, 19:05

by silverbullet » 16 Feb 2022, 19:05

I bought one of these years ago, genuine VAG stock but I am struggling to identify the Webasto model number to get a wiring or connection diagram?...

0 Replies

1794 Views

Last post by silverbullet
16 Feb 2022, 19:05
V12 socket on a Ziggy

Last post by JamieQPR « 05 Feb 2022, 10:09
Replies: 4
by JamieQPR » 17 Jan 2022, 13:26

Hi there,

Should the V12 plug socket run off the leisure battery, or only when the EHU is active, or Is there a fuse that needs switching on? I've...

4 Replies

1068 Views

Last post by JamieQPR
05 Feb 2022, 10:09
New van , new electrical problems

Last post by Professor plumb « 03 Feb 2022, 20:40
Replies: 6
by Professor plumb » 30 Jan 2022, 17:10

Afternoon all, owned an air cooled for years and always found great advice on here. Recently bought another t25 an lle 1.6 td needs a bit of love but...

6 Replies

1156 Views

Last post by Professor plumb
03 Feb 2022, 20:40
Coil [getting old?]

Last post by kentishvanman « 03 Feb 2022, 18:35
Replies: 4
by kentishvanman » 31 Jan 2022, 16:32

My wagon still has it's original 'green label' coil. Do not have any problems. Starts on lpg after 2/3/4 attempts depending on temp/weather.
Just a...

4 Replies

911 Views

Last post by kentishvanman
03 Feb 2022, 18:35
2.1DJ - Pertronix Coil any good, or replace with Bosch silver label?

Last post by ManicGTI « 01 Feb 2022, 23:34
Replies: 5
by ManicGTI » 21 Dec 2021, 16:24

Hi all, I'm playing wackamole with running issues on my 1990 2.1DJ T3 acquired this summer.

One of the suggestions on my main thread for poor...

5 Replies

1062 Views

Last post by ManicGTI
01 Feb 2022, 23:34
Two to Four Headlights Wiring Diagram Required

Last post by maxstu « 01 Feb 2022, 11:01
Replies: 28
by maxstu » 29 Jan 2022, 09:33
1

2
I have bought the twin square headlamps with grill conversion. At present running standard single round lights. So whats the best and safest way to...
28 Replies

3647 Views

Last post by maxstu
01 Feb 2022, 11:01
New battery question :)

Last post by ZsZ « 31 Jan 2022, 21:42
Replies: 2
by ZsZ » 31 Jan 2022, 08:02

My 7 yr old noname (Electric Power branded) starter battery died. Does not take a charge, dead cell or something, it needs to be changed.
I have an...

2 Replies

726 Views

Last post by ZsZ
31 Jan 2022, 21:42
240 EHU

Last post by triggermala « 31 Jan 2022, 07:58
Replies: 9
by triggermala » 29 Jan 2022, 06:15

Hi my 240v hook up socket is a flush fitting type with flip down front cover, its mounted on the side of the van but would like to move it as it...

9 Replies

1254 Views

Last post by triggermala
31 Jan 2022, 07:58
Dim dip

Last post by nicktennear « 27 Jan 2022, 22:28
Replies: 3
by nicktennear » 27 Jan 2022, 21:37

Daft question alert, did early vans have dim dip headlights? I'm replacing the switch as it's kaput. No lights at all at the moment so I'm in the...

3 Replies

799 Views

Last post by nicktennear
27 Jan 2022, 22:28
Dashboard errors!

Last post by AngeloEvs « 26 Jan 2022, 20:21
Replies: 12
by mercrocker » 06 Jan 2022, 15:04

I apologise if this is a resurrection of previous thread content but seem unable to currently access the very useful Wiki sections......

Got a...

12 Replies

2176 Views

Last post by AngeloEvs
26 Jan 2022, 20:21
Blown fuse. Twice!

Last post by Stesaw « 21 Jan 2022, 11:01
Replies: 9
by mariner » 20 Jan 2022, 16:38

Hi all. Fuse 10 blew pretty badly the other day when wipers and blower were both going - blower on full blast.

Replaced it and drove the van,...

9 Replies

1324 Views

Last post by Stesaw
21 Jan 2022, 11:01
87 westfalia club joker leisure wiring

Last post by Philfocker « 18 Jan 2022, 19:44

by Philfocker » 18 Jan 2022, 19:44

Hi,

Does anyone have a leisure wiring diagram for an 87 westfalia club joker.
I am undoing a lot of previous owner's bodges.
Also enewing the whole...

0 Replies

1777 Views

Last post by Philfocker
18 Jan 2022, 19:44
Dashboard lights not working

Last post by JamieQPR « 17 Jan 2022, 15:52
Replies: 11
by JamieQPR » 11 Oct 2021, 15:01

Hi there. The lights on on my Caravelle 1986 dashboard are not working. Does anybody know what fuse the dashboard is, or how to find a map of the...

11 Replies

4877 Views

Last post by JamieQPR
17 Jan 2022, 15:52
battery location

Last post by Mocki « 17 Jan 2022, 00:38
Replies: 4
by Betty boop 1 » 16 Jan 2022, 14:37

been tinkering in betty and got thinking......rear N/S in the engine bay is a space that looks like it could be for a battery does anyone know if...

4 Replies

1139 Views

Last post by Mocki
17 Jan 2022, 00:38
How do you fit BW's swivel seat battery clamp?

Last post by Italjohn « 10 Jan 2022, 13:03
Replies: 5
by Mrs8925 » 04 Dec 2021, 14:55

It's probably obvious but i can't work it out. Anyone got a picture?

TIA x

Sent from my SM-G950F using Tapatalk

5 Replies

1704 Views

Last post by Italjohn
10 Jan 2022, 13:03
Instrument Ribbon Replacement?

Last post by Italjohn « 10 Jan 2022, 11:36
Replies: 11
by Smiffo » 23 Oct 2021, 10:25

I remember a few years ago the PCB replacement items were north of £300.
They seem to have a few different designs now, and this one is approx half...

11 Replies

2672 Views

Last post by Italjohn
10 Jan 2022, 11:36
Non VW

Last post by Robsey « 10 Jan 2022, 00:18
Replies: 24
by R0B » 07 Jan 2022, 18:23
1

2
Changed the battery on my car a week ago. Today the battery light is on. Checked the battery with a multimeter with the engine off 12.48v and 14.8...
24 Replies

4820 Views

Last post by Robsey
10 Jan 2022, 00:18
TK103 central locking wiring.

Last post by Aidan « 07 Jan 2022, 16:03
Replies: 3
by captain Byrne » 03 Dec 2020, 09:49

Ok, so I lost my central locking key fob - well actually it's at the bottom of a lake in the south of France. Anyway, I've got a TK103 gps tracker...

3 Replies

2064 Views

Last post by Aidan
07 Jan 2022, 16:03
LED Indicator issue

Last post by Shinnster « 05 Jan 2022, 16:25
Replies: 15
by Shinnster » 12 Dec 2021, 16:27
1

2
Hi all
another day a new issue!

I have got a set of the LED indicators and relay from Slaughterhouse but 1 of them isnt working.
If i switch the...
15 Replies

2297 Views

Last post by Shinnster
05 Jan 2022, 16:25

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