Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
Dashboard PCB Replacement (CJH Design)	slowcoach	15 Jan 2026, 16:14	2 times this week	Electrical & Instrumentation
Switched 12v feed	Madmaninshed	15 Jan 2026, 16:51	Once this week	Electrical & Instrumentation

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Last post

Got an electrical fault ? Read this first!

Last post by Hacksawbob « 10 Feb 2013, 23:56

by Hacksawbob » 10 Feb 2013, 23:56

Check your earths !

Many electrical issues are caused by corroded electrical contacts on the earthing points. Please read and check before posting...

0 Replies

52021 Views

Last post by Hacksawbob
10 Feb 2013, 23:56
Dashboard PCB Replacement (CJH Design)

Last post by TwinTurbo « 21 minutes ago
Replies: 143
by The Hairy Camper » 17 Jun 2025, 10:43
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So, like I'm sure many of you have also experienced by now, the dashboard ribbon on my van is starting to fall apart in a few places. I've ordered a...
143 Replies

34494 Views

Last post by TwinTurbo
21 minutes ago
Steering column earth?

Last post by ZsZ « Today, 17:19
Replies: 4
by BarnyE » Today, 15:17

My horn isn’t working, but when I earth the contact to a point that isn’t the steering column it does. So I’ve lost my earth through the steering...

4 Replies

73 Views

Last post by ZsZ
Today, 17:19
Speedo not working

Last post by ManicGTI « 16 Jan 2026, 20:54
Replies: 1
by therealchrisgray » 16 Jan 2026, 16:33

Hi all, I need a bit of troubleshooting and advice.

I just replaced the speedo cable, but the needle still isn't moving. Does this mean the speedo...

1 Replies

78 Views

Last post by ManicGTI
16 Jan 2026, 20:54
Switched 12v feed

Last post by Madmaninshed « 15 Jan 2026, 16:51
Replies: 4
by Madmaninshed » 14 Jan 2026, 17:25

Hi, I am trying to wire in a TomTom cradle and a dash cam, as I am keen to avoid dangly cables across the dash. Someone has removed the small 12v...

4 Replies

215 Views

Last post by Madmaninshed
15 Jan 2026, 16:51
Tachometer Steper Motor

Last post by The Hairy Camper « 10 Jan 2026, 13:15
Replies: 4
by The Hairy Camper » 08 Jan 2026, 17:25

Anyone know if you can still get hold of the Stepper Motors for a T3 Tachometer? Or a more modern one that functions the same way?

I've seen loads...

4 Replies

405 Views

Last post by The Hairy Camper
10 Jan 2026, 13:15
Dashboard issues

Last post by JamieQPR « 07 Jan 2026, 14:25
Replies: 7
by JamieQPR » 06 Jan 2026, 18:03

Hi gang.

Elements of my dashboard have ceased to work.

The fuel gauge has stopped working
The engine temperature gauge has stopped working
I...

7 Replies

525 Views

Last post by JamieQPR
07 Jan 2026, 14:25
OBD 2 port

Last post by Robsey « 31 Dec 2025, 21:11
Replies: 2
by Reece16 » 31 Dec 2025, 17:08

Can anyone tell me if a 1989 T3/25 van would have a data port? Need to connect a solar trickle feed to my main battery over the winter months.

John

2 Replies

288 Views

Last post by Robsey
31 Dec 2025, 21:11
Oil Pressure Warning Light Inoperative

Last post by keynsham1 « 31 Dec 2025, 08:15
Replies: 12
by keynsham1 » 13 Dec 2025, 16:09

After having my van for ten years, it has just occurred to me that the oil pressure LED does not come on! I think I had assumed that it only came on...

12 Replies

1126 Views

Last post by keynsham1
31 Dec 2025, 08:15
Oil light when releasing brake pedal.

Last post by BarnyE « 21 Dec 2025, 11:44

by BarnyE » 21 Dec 2025, 11:44

So when I depress my brake pedal my oil light flashes on when I release it. Any suggestions on that?

Sent from my iPhone using Tapatalk

0 Replies

310 Views

Last post by BarnyE
21 Dec 2025, 11:44
Swapping TF1171 vsr for tf1170-3 vsr

Last post by Betty boop 1 « 21 Dec 2025, 10:45

by Betty boop 1 » 21 Dec 2025, 10:45

Good morning all has anyone swapped a ryder TF1171 for a tf1170-3 if so was the wiring simple enough it would appear the TF1171 vsr has popped and is...

0 Replies

308 Views

Last post by Betty boop 1
21 Dec 2025, 10:45
Help deciding on water pump type for potable water transfer

Last post by bubba slapbum « 20 Dec 2025, 09:39

by bubba slapbum » 20 Dec 2025, 09:39

I have a Berkefeld gravity pump, which I keep under the bed and as such it is cumbersome having to lift it up and out every single time to get enough...

0 Replies

297 Views

Last post by bubba slapbum
20 Dec 2025, 09:39
Headlamp fuse for Square headlamp conversion.

Last post by TwinTurbo « 19 Dec 2025, 18:15
Replies: 1
by keynsham1 » 19 Dec 2025, 11:15

I am fitting the square headlight conversion to my van. As I will have two high beam lights on each side instead of one, the current will double. The...

1 Replies

320 Views

Last post by TwinTurbo
19 Dec 2025, 18:15
REV COUNTER

Last post by hubcap61 « 16 Dec 2025, 19:59
Replies: 1
by oldpapy » 16 Dec 2025, 19:45

i have just fitted a rev counter in my t25 1988 2.1 . On start up tick over the neddle only move very slow dose anyone no what is the problem. Thank...

1 Replies

326 Views

Last post by hubcap61
16 Dec 2025, 19:59
Battery light

Last post by TwinTurbo « 15 Dec 2025, 07:20
Replies: 4
by dogbreath100 » 09 Dec 2025, 15:22

Hi ,
Im having a problem with the battery light which is constantly on .
The battery is not charging .
When I dis connect the blue wire the light...

4 Replies

532 Views

Last post by TwinTurbo
15 Dec 2025, 07:20
Why did my fuse box melt?

Last post by Robsey « 05 Dec 2025, 21:25
Replies: 8
by totorro » 29 Nov 2025, 22:11

Coming home earlier in the week I noticed my right hand headlight was out. Side light and main bean still working, just no dipped beam. I had a look...

8 Replies

928 Views

Last post by Robsey
05 Dec 2025, 21:25
Dead coolant and Heating heater blower - 12v alternative

Last post by Louey « 04 Dec 2025, 11:22
Replies: 3
by stevenm » 02 Dec 2025, 15:33

Blower motor died and in no rush to start removing the dashboard. Has anyone got experience and recommend any of those 12v plug in blower?

3 Replies

504 Views

Last post by Louey
04 Dec 2025, 11:22
Where's my buzzer?

Last post by Rik « 29 Nov 2025, 12:05
Replies: 7
by Rik » 21 Nov 2025, 21:27

Hi,

I've seen many on here complain about the buzzer of doom . I want that too!

My van doesn't have a audible clue for the warning lights, and as...

7 Replies

859 Views

Last post by Rik
29 Nov 2025, 12:05
Anyone know how to diagnose a faulty PCB

Last post by TwinTurbo « 21 Nov 2025, 21:33
Replies: 2
by crazyhorse » 20 Nov 2025, 16:02

My cruise control waeco MS50 has suddenly stopped working.. it doesnt detect the signal from the tacho, tacho is still working so maybe something has...

2 Replies

637 Views

Last post by TwinTurbo
21 Nov 2025, 21:33
On Board Wifi Setup

Last post by keynsham1 « 15 Nov 2025, 20:53
Replies: 17
by keynsham1 » 25 Aug 2025, 18:07
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Has anyone got experience of using this:
17 Replies

7492 Views

Last post by keynsham1
15 Nov 2025, 20:53
Identify this wire

Last post by prossett « 12 Nov 2025, 20:15
Replies: 5
by prossett » 09 Nov 2025, 22:08

Found in the dashboard of a 1985 Reimo camper, 1.9L petrol water-cooled. The round ground was behind where the stereo would go, not attached to...

5 Replies

1125 Views

Last post by prossett
12 Nov 2025, 20:15
Headlights blow indicator fuse

Last post by chook12 « 09 Nov 2025, 21:21
Replies: 4
by chook12 » 29 Oct 2025, 05:22

1982 EFI 2l air-cooled. Upgraded headlight relays.
Upgraded the headlight wiring a few years ago now with power straight to headlights via fuses and...

4 Replies

1470 Views

Last post by chook12
09 Nov 2025, 21:21
123 ignition in 1.6 CT Transporter

Last post by deanclean « 09 Nov 2025, 15:55
Replies: 2
by deanclean » 09 Nov 2025, 03:32

Hello all,
I have been researching a 123 ignition for my 1981 single cab Transporter. Its a CT motor and has the stock DVDA distributor and a...

2 Replies

858 Views

Last post by deanclean
09 Nov 2025, 15:55
Another fast flashing indicator question

Last post by Aidan « 08 Nov 2025, 13:39
Replies: 5
by adsnape » 06 Nov 2025, 19:15

My right indicator is behaving like a bulb is burned out, with rear and internal warning light going double speed, and the right headlight is...

5 Replies

1413 Views

Last post by Aidan
08 Nov 2025, 13:39
Wiring on Rear of Speedometer.

Last post by cobblers « 05 Nov 2025, 08:51
Replies: 5
by keynsham1 » 04 Nov 2025, 13:59

I am dabbling with the idea of fitting a GPS speedo in place of my original. I have found one I like and it fits well (in an old unit, not my own!!)...

5 Replies

1402 Views

Last post by cobblers
05 Nov 2025, 08:51
Speedo needle won't come off help

Last post by davidoft1 « 28 Oct 2025, 13:50
Replies: 3
by Swordfish93 » 28 Oct 2025, 12:11

Hello, I have a 1983 westy (1.9dg) the speedo is removed and I am trying to remove the needle but it will not come off. I have been prying at this...

3 Replies

1333 Views

Last post by davidoft1
28 Oct 2025, 13:50
Headlight relay upgrade

Last post by jigarai « 27 Oct 2025, 14:50
Replies: 4
by jigarai » 25 Oct 2025, 20:07

I’ve built up a relay setup for the headlights as shown here. It also includes a headlight buzzer using relay 292.

I used a spare fuse box to build...

4 Replies

1428 Views

Last post by jigarai
27 Oct 2025, 14:50
Central locking motor contact springs

Last post by Aidan « 15 Oct 2025, 12:02

by Aidan » 15 Oct 2025, 12:02

I know that very, very few people would ever try and refurbish a central locking motor assembly now, because you can buy cheap Chinese version of the...

0 Replies

5112 Views

Last post by Aidan
15 Oct 2025, 12:02
Replaced starter motor, electrical fault

Last post by NoobyNiall « 13 Oct 2025, 17:54
Replies: 8
by NoobyNiall » 11 Oct 2025, 12:16

:(

Hello all,

My starter motor failed, got a replacement from Rhino automotive.
Put Everything back in its place, mechanically.

Electrically not...

8 Replies

4094 Views

Last post by NoobyNiall
13 Oct 2025, 17:54
What's this wire

Last post by Buster Bungo « 08 Oct 2025, 20:10
Replies: 2
by Buster Bungo » 06 Oct 2025, 20:12

I was ripping out some redundant wiring at the weekend, resolving years of add-ons that no longer work and found this wire just behind the fuse/relay...

2 Replies

4858 Views

Last post by Buster Bungo
08 Oct 2025, 20:10
Sooty plugs all of a sudden….? Summer holiday departure imminent..

Last post by icosahedron « 06 Oct 2025, 12:41
Replies: 5
by spanishfly » 17 Jul 2025, 16:19

You know those people you only hear from when they need something…? That appears to be me :oops: .

2.1dj syncro rebuilt by me a few years ago with...

5 Replies

6695 Views

Last post by icosahedron
06 Oct 2025, 12:41
T3 14 pin connecter size

Last post by icosahedron « 05 Oct 2025, 06:34
Replies: 1
by Swordfish93 » 04 Oct 2025, 19:03

I need to repair my instrument cluster harness since the last owner cut it. What is the size of the pins that go in the connector so I order the...

1 Replies

4163 Views

Last post by icosahedron
05 Oct 2025, 06:34
Blower motor replacement

Last post by multisi « 03 Oct 2025, 15:16
Replies: 18
by Rik » 27 Sep 2025, 15:05
1

2
Hey all,

Working on a replacement of my blower motor and the old coolant lines up there. Just got the dash out after a lot off hassle with some...
18 Replies

8290 Views

Last post by multisi
03 Oct 2025, 15:16
Alternator wire ?

Last post by Gino D camper « 02 Oct 2025, 16:19
Replies: 5
by Gino D camper » 22 Sep 2025, 11:59

Hi all,

So..van is a early 1.6 air-cooled fella. Problem I'm having is he having removed the engine for work, upon re installation, I can't find...

5 Replies

3212 Views

Last post by Gino D camper
02 Oct 2025, 16:19
Leisure battery not charging while driving

Last post by Mocki « 01 Oct 2025, 17:40
Replies: 1
by BobbyOrbit » 01 Oct 2025, 10:05

Hi. We had some problems with our very old leisure battery (holding charge, sulphur smells etc), so replaced it with a new one. However, it seems not...

1 Replies

4310 Views

Last post by Mocki
01 Oct 2025, 17:40
OEM wiring harness manufacturer design schematics?

Last post by DerCribben « 21 Sep 2025, 04:35
Replies: 5
by DerCribben » 19 Sep 2025, 10:27

I know this is a stretch, but has anyone seen the actual manufacturing schematics sent to the electric shops that built the original wiring harnesses...

5 Replies

5583 Views

Last post by DerCribben
21 Sep 2025, 04:35
Headlights washers electrical connetions 89' Multivan

Last post by hotpod « 10 Sep 2025, 12:07
Replies: 1
by Wiader » 01 Sep 2025, 18:00

Hi, I bought kit to install headlights washers for my van (tank, pump, sprinklers, etc), but I'm missing relay, which one do I need? Also how to...

1 Replies

5443 Views

Last post by hotpod
10 Sep 2025, 12:07
Can a T25 run an alternator charger?

Last post by Rosie n' Jim « 09 Sep 2025, 18:51
Replies: 4
by tomrussell94 » 28 Aug 2025, 11:34

Hi all,

I currently run my T25's power (lights/fridge etc) through a bluetti power station (AC180) as it saved the hassle and space of a leisure...

4 Replies

6198 Views

Last post by Rosie n' Jim
09 Sep 2025, 18:51
usb into cigarette lighter

Last post by Aidan « 07 Sep 2025, 18:06
Replies: 9
by Pauld » 02 Sep 2025, 15:24

Hi, i got a usb port to fit instead of cigarette lighter. The rear of lighter has two brown wires together one red and one blue/Grey . The new...

9 Replies

6344 Views

Last post by Aidan
07 Sep 2025, 18:06
Wiring confusion!!

Last post by Al Housman « 04 Sep 2025, 19:48
Replies: 5
by Al Housman » 03 Sep 2025, 16:00

I almost have the syncro back together and am just finishing the wiring but I seem to have a wire over and can't for the life of me figure out where...

5 Replies

5989 Views

Last post by Al Housman
04 Sep 2025, 19:48
Battery Charging

Last post by isaacfull « 03 Sep 2025, 18:01
Replies: 5
by Burtybassett » 17 Jul 2024, 18:06

Hi guy's 👋
Question for the T25/T3 Massive...

Just taken my drivers seat out on my Westie to charge up the leisure battery ready for camping this...

5 Replies

7039 Views

Last post by isaacfull
03 Sep 2025, 18:01
Old solar panel- I think it's lost it's oomph

Last post by slowcoach « 03 Sep 2025, 10:12

by slowcoach » 03 Sep 2025, 10:12

I've had a rigid 130w panel on the roof for at least 12 years, doing it's thing with no maintenance at all. I saw about a year ago that's had an...

0 Replies

7502 Views

Last post by slowcoach
03 Sep 2025, 10:12
Starter engine/solenoid problems

Last post by Vodim « 02 Sep 2025, 14:11
Replies: 10
by Vodim » 31 Aug 2025, 13:24

My T25 Diesel from 90 always starts very easily but all of a sudden it’s dead. When turning the key the starter engine starts but the typical sound...

10 Replies

6291 Views

Last post by Vodim
02 Sep 2025, 14:11
Solar trickle charger

Last post by ajsimmo « 02 Sep 2025, 14:06
Replies: 10
by JeffRoo » 30 Aug 2025, 06:54

Hi all,
Been thinking about getting a couple of solar chargers to maintain leisure and main batteries. Has anyone got any recommendations on the ones...

10 Replies

6857 Views

Last post by ajsimmo
02 Sep 2025, 14:06
Replacing the dashboard plastic PCB

Last post by TwinTurbo « 01 Sep 2025, 11:53
Replies: 446
by MidLifeCrisis » 13 Dec 2013, 13:55
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I just replaced the plastic PCB on my dashboard broadly following Covkid's instuctions in the Wiki;

I thought the PCB layout that I used might be...
446 Replies

241813 Views

Last post by TwinTurbo
01 Sep 2025, 11:53
Brake lights - now Sorted!

Last post by badgerfax « 30 Aug 2025, 07:18
Replies: 11
by TheRealExile » 13 May 2024, 18:05

Whilst going through testing all lights I noticed today that the brake lights don't work.

I pulled this out of the drivers side unit!

What is...

11 Replies

8034 Views

Last post by badgerfax
30 Aug 2025, 07:18
Leisure battery advice

Last post by dcworm57 « 30 Aug 2025, 04:56
Replies: 35
by Shinnster » 09 Apr 2025, 17:22
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Hi all,

the time has come to get a leisure battery in my van. Ive been using a second car starter battery for the past 2 years which has kind of...
35 Replies

24874 Views

Last post by dcworm57
30 Aug 2025, 04:56
Oil pressure buzzer

Last post by Robsey « 28 Aug 2025, 20:26
Replies: 4
by F41XTH » 28 Aug 2025, 11:58

I took both the rocket covers off to try and diagnose why they were both leaking, I've got new gaskets to put on but took it for a quick errand drive...

4 Replies

5651 Views

Last post by Robsey
28 Aug 2025, 20:26
Reverse lights

Last post by F41XTH « 28 Aug 2025, 14:54
Replies: 2
by F41XTH » 25 Aug 2025, 17:10

I have no reverse lights at all. The bulbs work as I have checked them

A multimeter read on the reverse wire comes in at 3v, could anyone please...

2 Replies

5662 Views

Last post by F41XTH
28 Aug 2025, 14:54
Gasure wiring diagram needed

Last post by crazydiamond « 27 Aug 2025, 09:15
Replies: 4
by crazydiamond » 25 Aug 2025, 15:07

My LPG ws installed hundreds of years ago by thr late great Steve Shaw Gasure. It stopped running today, and it appears that the shutoff solonoid on...

4 Replies

5657 Views

Last post by crazydiamond
27 Aug 2025, 09:15

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