Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
T25 dashboard dimmer switch	syncroandy	12 Jul 2025, 07:39	2 times this week	Electrical & Instrumentation
Dashboard PCB Replacement (CJH Design)	TwinTurbo	11 Jul 2025, 07:48	2 times this week	Electrical & Instrumentation

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Last post

BBB is not buzzing or getting hot, vehicle battery flat.

Last post by California Dreamin « 15 Sep 2015, 11:14
Replies: 1
by GrahamL » 22 Aug 2015, 12:54

Hi,
I'm on holiday and my BBB has not got warm and does not buzz.
I have flattened my vehicle ( Atlantic,1.6TD, MY90) battery.
I shall complete all...

1 Replies

1064 Views

Last post by California Dreamin
15 Sep 2015, 11:14
fitting interior light above passenger door

Last post by CovKid « 14 Sep 2015, 21:07
Replies: 6
by scottbott » 12 Sep 2015, 21:43

I seem to remember seeing something about doing this mod,about cutting the headlining etc,I cannot find it,anyone remember seeing this also how/where...

6 Replies

1978 Views

Last post by CovKid
14 Sep 2015, 21:07
Operating temp 1.9 TDI

Last post by KINGPRAWN « 14 Sep 2015, 22:14
Replies: 4
by KINGPRAWN » 14 Sep 2015, 15:36

just got my scan gauge working thank to SYNCROANDY's ECU .... Now I have so much info to worry me !!!
What should the running temp be ... Needle...

4 Replies

1628 Views

Last post by KINGPRAWN
14 Sep 2015, 22:14
No Brakel Lights (not bulbs or fuse)

Last post by ELVIS « 13 Sep 2015, 14:45
Replies: 2
by petefelstead » 12 Sep 2015, 19:21

We have a 1987 T25 (Losty) and the brake lights are not working. The brake master cylinder has what appears to be two identical brake switches. I...

2 Replies

892 Views

Last post by ELVIS
13 Sep 2015, 14:45
LED lights fitted

Last post by CovKid « 13 Sep 2015, 11:29
Replies: 1
by Laws1974 » 13 Sep 2015, 08:56

Been meaning to do this for awhile removed old strip light an starter from housing and fitted LED strip. Now a lot brighter and uses a lot less power.

1 Replies

927 Views

Last post by CovKid
13 Sep 2015, 11:29
Sticky stuck 3 way fridge button switches solved

Last post by Middle29 « 12 Sep 2015, 21:51

by Middle29 » 12 Sep 2015, 21:51

OK so I posted the other day looking for a thread about fixing stuck fridge buttons. No-one responded so I deleted it but I found the thread & then...

0 Replies

1607 Views

Last post by Middle29
12 Sep 2015, 21:51
South African headlight conversion question

Last post by CovKid « 12 Sep 2015, 19:42
Replies: 4
by fixitsteve » 11 Sep 2015, 19:04

Hi all,
Is it legal to wire the inner lights directly to the main beam so that all 4 lights operate at the same time, or do they have to be wired to...

4 Replies

1549 Views

Last post by CovKid
12 Sep 2015, 19:42
Relay 72 conundrum

Last post by Dave99 « 12 Sep 2015, 17:02

by Dave99 » 12 Sep 2015, 17:02

Hi all

apologies in advance I am both a T25 newbie and an auto electrical novice. I have a recently restored 1985 T25 Caravelle which I took on a...

0 Replies

1411 Views

Last post by Dave99
12 Sep 2015, 17:02
Fuel Pump/Push Pod - Removal

Last post by CovKid « 23 Sep 2015, 11:29
Replies: 10
by sburch » 06 Sep 2015, 15:31

Hi folks...suffered the inevitable fate of many...fuel pump appears to have died and am in the middle of removing with the aim of replacing with a...

10 Replies

3484 Views

Last post by CovKid
23 Sep 2015, 11:29
Horn, reversing lights, fog light all not working

Last post by Robsey « 08 Sep 2015, 21:17
Replies: 1
by mgbman » 08 Sep 2015, 21:01

I need some help please.

The van (1980 Devon 2l) has been off road for some months.

Did pre Mot checks today and found the horn doesn't work, the...

1 Replies

920 Views

Last post by Robsey
08 Sep 2015, 21:17
Really cheap rev counter (update)

Last post by CovKid « 08 Sep 2015, 09:55
Replies: 33
by Dad » 03 Feb 2014, 13:19
1

2

3
I'd like a rev counter for my 1.9 wbx this one onclick= window.open(this.href);return false; is really cheap, would anyone trust the seller in china?...
33 Replies

11779 Views

Last post by CovKid
08 Sep 2015, 09:55
Autohomes Split Charge Relay Fault?

Last post by Elsaetka « 07 Sep 2015, 20:32
Replies: 3
by Elsaetka » 12 Aug 2015, 06:14

Hello,

I think I have a problem with the split charge relay on my Autohomes T25, basically when sorting out the batteries I took the aux battery out...

3 Replies

2046 Views

Last post by Elsaetka
07 Sep 2015, 20:32
Red light flashing

Last post by silverbullet « 06 Sep 2015, 06:33
Replies: 2
by Westwood » 05 Sep 2015, 20:38

Hinive just noticed something about my dash.
On starting the red light goes off, but after about one minute it starts to flash,temp gauge goes fully...

2 Replies

851 Views

Last post by silverbullet
06 Sep 2015, 06:33
hazard warning switch

Last post by ThomChloe « 05 Sep 2015, 10:34
Replies: 2
by ThomChloe » 03 Sep 2015, 18:55

Hi just need a bit of help hazards not working on my 1990 1.9 petrol van indicators working so thinking the hazard switch has gone . The problem is I...

2 Replies

1211 Views

Last post by ThomChloe
05 Sep 2015, 10:34
strange reading on voltmeters

Last post by scottbott « 03 Sep 2015, 21:35
Replies: 5
by scottbott » 03 Sep 2015, 20:38

I hope this is not a stupid question but if it is I will apologise for it,I have fitted a battery under the rear seat to power my webasto heater,I...

5 Replies

1433 Views

Last post by scottbott
03 Sep 2015, 21:35
Mileometer

Last post by Karen&co « 03 Sep 2015, 16:07
Replies: 3
by Karen&co » 02 Sep 2015, 19:48

Hello,

Can anyone help me work out why the speedometer works but the mileometer doesn't? I shouldn't mind not adding miles to the clock but am...

3 Replies

1168 Views

Last post by Karen&co
03 Sep 2015, 16:07
Replacing led lights

Last post by scottbott « 02 Sep 2015, 19:35
Replies: 10
by Ant-t » 26 Aug 2015, 21:28

I'm working on my van interior and I want to replace the spot and main strip led lights. The ones currently fitted are old with dead leds, has anyone...

10 Replies

2965 Views

Last post by scottbott
02 Sep 2015, 19:35
Fog Light Switch [LED Light]

Last post by CovKid « 02 Sep 2015, 18:11
Replies: 22
by Nathanb » 25 Aug 2015, 00:03
1

2
I've just upgraded my dashboard illumination bulbs to LED versions, nice little upgrade!

I also replaced the light bulb in my 'Fog Light' switch on...
22 Replies

9842 Views

Last post by CovKid
02 Sep 2015, 18:11
LED indicators

Last post by scottbott « 31 Aug 2015, 20:32
Replies: 13
by scottbott » 27 Aug 2015, 22:01

any recommendations for who to buy indicators LED's from?

13 Replies

3861 Views

Last post by scottbott
31 Aug 2015, 20:32
Plastic PCB Mystery??????

Last post by Roydini « 31 Aug 2015, 14:16
Replies: 11
by Roydini » 31 Aug 2015, 13:23

Hello all :D

I have just been poking around cleaning terminals on the back of the instrument display in an attempt to fix a sticky fuel level...

11 Replies

3535 Views

Last post by Roydini
31 Aug 2015, 14:16
Rookie question

Last post by Oldiebut goodie « 31 Aug 2015, 10:17
Replies: 6
by Karen&co » 31 Aug 2015, 07:14

Hello knowledgeable people. We took our van for a day out on Saturday and noticed that there wasn't a temperature gauge or at least I couldn't see...

6 Replies

1732 Views

Last post by Oldiebut goodie
31 Aug 2015, 10:17
Engine won't start (battery ok)

Last post by kevtherev « 30 Aug 2015, 14:58
Replies: 4
by si macc » 29 Aug 2015, 11:32

Hi,

I'm having some issues starting our camper (1.6 td jx). Previously I had an issue with charging our leisure battery (main was working fine with...

4 Replies

2847 Views

Last post by kevtherev
30 Aug 2015, 14:58
Lights left on warning?

Last post by triumph2.5pi « 29 Aug 2015, 18:58
Replies: 8
by triumph2.5pi » 28 Aug 2015, 19:11

I seem to be becoming increasingly absent minded and have left my lights on a number of times recently (luckily my eagle eyed neighbour has spotted...

8 Replies

2531 Views

Last post by triumph2.5pi
29 Aug 2015, 18:58
intermittant wiper query, wiki already checked

Last post by chewbacca « 29 Aug 2015, 18:28
Replies: 3
by chewbacca » 28 Aug 2015, 12:54

Hi guys
I'm all set for wiring in an intermittent relay, but I'm a little confused about the washer functionality.
When I currently work my washers...

3 Replies

1017 Views

Last post by chewbacca
29 Aug 2015, 18:28
Hall sender

Last post by alice the camper « 29 Aug 2015, 14:25
Replies: 18
by frankie_66 » 22 Feb 2014, 14:32
1

2
do i need the whole new part or can i just get the black piece at the side of the hall sender that the
wires connect to? i have an 1987 vw type 25 ,...
18 Replies

10430 Views

Last post by alice the camper
29 Aug 2015, 14:25
Tdi ECU ... All sorted

Last post by KINGPRAWN « 28 Aug 2015, 10:07

by KINGPRAWN » 28 Aug 2015, 10:07

HUGE thanks to SYNCROANDY for investigating, testing and supplying me an ECU that will talk to my scan gauge ... Turns out that my VERY early ( 94...

0 Replies

1265 Views

Last post by KINGPRAWN
28 Aug 2015, 10:07
Reversing Camera recommendations

Last post by davegsm82 « 26 Aug 2015, 21:31
Replies: 9
by Reimotim » 17 Aug 2015, 23:16

Hi Guys,
Thinking about getting a reversing camera, but there are loads out there, so the question is what recommendations do people have?
I'm happy...

9 Replies

3175 Views

Last post by davegsm82
26 Aug 2015, 21:31
Propex pics

Last post by Wolfy « 26 Aug 2015, 16:35
Replies: 6
by Wolfy » 16 Aug 2015, 07:50

Does anyone have any pics of the insides of their propex heaters they can post here, I bought a second hand one the other day and the wiring is a bit...

6 Replies

4470 Views

Last post by Wolfy
26 Aug 2015, 16:35
vw polo crank position sensor

Last post by Shaundon « 26 Aug 2015, 20:33
Replies: 2
by Shaundon » 26 Aug 2015, 16:28

Non t25 question but does anyone know the pinouts for the crank position sensor on a 2000 vw polo 1.0 petrol engine

there are 3 pins as its a hall...

2 Replies

1298 Views

Last post by Shaundon
26 Aug 2015, 20:33
dual leisure batt system + aux battery

Last post by wolfbus.uk « 26 Aug 2015, 14:38
Replies: 10
by wolfbus.uk » 22 Jun 2015, 22:51

planning the electrical stage of my syncro panel van conversion.

I have a sterling AB12160 charger as yet uninstalled.

I am trying to find the...

10 Replies

7094 Views

Last post by wolfbus.uk
26 Aug 2015, 14:38
Split charge relay

Last post by California Dreamin « 26 Aug 2015, 12:36
Replies: 5
by D16LJM » 18 Aug 2015, 20:14

I have been playing about with the van today and have found the split charge relay to be fried, the relay on it is an old Halfords split charge for...

5 Replies

2271 Views

Last post by California Dreamin
26 Aug 2015, 12:36
Plugin Systems PMS4

Last post by poshbuggers « 26 Aug 2015, 09:48
Replies: 5
by poshbuggers » 25 Aug 2015, 15:42

Has anyone got any experience wiring one of these up?

I have searched for a wiring diagram/manual with no joy and have been told they were never...

5 Replies

6694 Views

Last post by poshbuggers
26 Aug 2015, 09:48
Power spark dizzy

Last post by sarran1955 « 25 Aug 2015, 21:50
Replies: 9
by vwaddict » 25 Aug 2015, 08:27

Hi, i was wondering has anyone fitted the power spark 034 svda electronic distributor with the single vac can on it to there CU engine ?

If so how...

9 Replies

1763 Views

Last post by sarran1955
25 Aug 2015, 21:50
Engine battery cover? which type?

Last post by 300CE « 24 Aug 2015, 21:36
Replies: 16
by Emma&Al » 16 Aug 2015, 18:53
1

2
HI all,
The garage were shocked to see that I had a bare metal lid over my engine battery under the front seat. They said that it could really easily...
16 Replies

5274 Views

Last post by 300CE
24 Aug 2015, 21:36
Split Charging Relay position

Last post by California Dreamin « 24 Aug 2015, 18:58
Replies: 5
by GrahamL » 23 Aug 2015, 20:39

Hi,
Where is the split charging relay to be found on a 1.6 Turbo Diesel camper?
Regards
Graham

5 Replies

1539 Views

Last post by California Dreamin
24 Aug 2015, 18:58
Interior fan only working on speed 1

Last post by Oldiebut goodie « 24 Aug 2015, 10:02
Replies: 3
by GrahamL » 23 Aug 2015, 21:42

Hi,
The interior / front screen demist fan is only works on speed one of three.
Atlantic, Westy, MY 90.
Any advice will be appreciated.
Regards
Graham

3 Replies

1458 Views

Last post by Oldiebut goodie
24 Aug 2015, 10:02
coolant warning light problem

Last post by CovKid « 23 Aug 2015, 20:05
Replies: 1
by stus » 23 Aug 2015, 20:02

hi all. my warning light is ok to start, it flashes and goes off as it should. however, once its warmed up, then i turn the ignition off, and...

1 Replies

838 Views

Last post by CovKid
23 Aug 2015, 20:05
Immobiliser wiring?

Last post by petervw « 23 Aug 2015, 16:59

by petervw » 23 Aug 2015, 16:59

I know this may sound controversial, but I have problems with my immobiliser wiring. It doesn't always work when I disengage it, so the ignition...

0 Replies

1534 Views

Last post by petervw
23 Aug 2015, 16:59
crazy ignition/reving

Last post by Ian Hulley « 23 Aug 2015, 13:28
Replies: 1
by dave lfc » 23 Aug 2015, 12:11

hi everyone just broke down and i thought it was fueling issues.so changed the filters one under the van and the carb one.anyway it wanted to to...

1 Replies

642 Views

Last post by Ian Hulley
23 Aug 2015, 13:28
Moving Starter Battery Forward

Last post by CovKid « 22 Aug 2015, 20:08
Replies: 11
by Titus A Duxass » 21 Aug 2015, 05:07

Hi All,
I am going to move the starter battery from the engine bay to under the right seat.
This will let me fit a better air filter and have a place...

11 Replies

2870 Views

Last post by CovKid
22 Aug 2015, 20:08
Distributor electrical arc sound when ignition is turned on?

Last post by Jeff J « 22 Aug 2015, 18:59
Replies: 1
by Westie82 » 22 Aug 2015, 14:11

Good afternoon all,

When I turn the ignition on (first position,with out starting or cranking the engine) I get a continuous clicking noise coming...

1 Replies

753 Views

Last post by Jeff J
22 Aug 2015, 18:59
Zig cf8 unit

Last post by CovKid « 22 Aug 2015, 13:16
Replies: 1
by Neil2801 » 22 Aug 2015, 12:40

Please can any one help.....
I need to know where the 240 incoming cables connect to inside my zig unit.
Thanks
Neil

1 Replies

892 Views

Last post by CovKid
22 Aug 2015, 13:16
Altimeter & level

Last post by CovKid « 22 Aug 2015, 12:40
Replies: 5
by CovKid » 21 Aug 2015, 20:14

Just stripped this apart (think it came from a Pajero - had it a few years), removed the tungsten bulbs and fitted some green LEDs and 270 ohm...

5 Replies

1974 Views

Last post by CovKid
22 Aug 2015, 12:40
Headlights

Last post by silverbullet « 21 Aug 2015, 18:05
Replies: 10
by pan-al » 20 Aug 2015, 19:40

AnyOne fitted better high beam headlights like hd or the like.

10 Replies

2969 Views

Last post by silverbullet
21 Aug 2015, 18:05
Quick question re brake lights

Last post by Dazco « 21 Aug 2015, 15:02
Replies: 1
by Dazco » 21 Aug 2015, 13:38

Im just having mot on van and it appears that the brake lights are only working when the engine is running .
Any ideas ????????????

1 Replies

748 Views

Last post by Dazco
21 Aug 2015, 15:02
Unusual fault fixing

Last post by Aidan « 21 Aug 2015, 05:33
Replies: 4
by voodoopenguin » 20 Aug 2015, 15:30

Probably should go in the technical section but it isn't very technical!

For months now I have had the red brake warning light on. After checking...

4 Replies

1852 Views

Last post by Aidan
21 Aug 2015, 05:33
12v ligts/water pump

Last post by CJH « 20 Aug 2015, 15:43
Replies: 5
by emmanglenn » 16 Aug 2015, 15:49

Hi, the Whale pump on the T25 sink stopped working on our last trip, probably because the tank got to low. I'm not techno at all but looked so
simple...

5 Replies

1749 Views

Last post by CJH
20 Aug 2015, 15:43
Additional cab courtesy light wiring

Last post by scottbott « 19 Aug 2015, 20:07
Replies: 31
by danmetallic » 03 Oct 2013, 13:37
1

2

3
I just wanted to clarify some wiring queries I have. Planning to fit a courtesy light over the passenger seat (I have a hard headliner in our Westy...
31 Replies

14760 Views

Last post by scottbott
19 Aug 2015, 20:07
VAGCOM ?

Last post by Titus A Duxass « 21 Aug 2015, 04:25
Replies: 9
by peteabbott » 18 Aug 2015, 21:20

Hello all,
After years of loving my T3, for my sins I bought a 1.6 Bora to add to my fleet of 2........love my VW,s
Now the Bora has a very...

9 Replies

4371 Views

Last post by Titus A Duxass
21 Aug 2015, 04:25
Alternator charge

Last post by itchyfeet « 18 Aug 2015, 19:33
Replies: 60
by Choppski » 15 Aug 2015, 23:15
1

2

3

4

5
Just checked the charging output on my starter battery and it is steady at 13.85V when ticking over and only increases to 13.90V when revved up. Does...
60 Replies

22867 Views

Last post by itchyfeet
18 Aug 2015, 19:33

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