2011 T5.1 Interior Lights |
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StevenMurray
Newbie Joined: 19 Jan 20 Location: Aberdeenshire Status: Offline Points: 6 |
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Posted: 19 Jan 20 at 18:33 |
Hi All,
I've just bought a T5.1 Panel Van, and the interior lights aren't working. I've tested the bulbs and they're okay. There's 12vdc coming away from Fuse 17 in the middle of the lower fuse box on a red/black wire, but no power appearing at the white plug inside the passenger end cap of the dash on the red/black wire there. Does anyone know where the red/black wire from the fuse goes to? I'm assuming it goes to some multi way connector for all internal lights and that there may be a disconnect causing the issue. I can see it disappearing into the loom near the scuttle when I took the dashboard pocket out, but shy of dismantling the entire dash, I'm at a loss as to what to check next? Is it likely to cause an issue if I disconnect the 2 x large connectors on the Body Control Module for 'ringing out' purposes with a multi-meter? Any help would be most welcome, as just now I'm puddling around in the dark (literally..) Thanks, Steve.
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2011 VW T5.1 Transporter
Duct Tape & WD40 = Man's Best Friend |
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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StevenMurray
Newbie Joined: 19 Jan 20 Location: Aberdeenshire Status: Offline Points: 6 |
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Hi Charlie,
Is that fuse one of the ones below the Drinks holder, or are there more fuses near the BCM?
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2011 VW T5.1 Transporter
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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Yes Steven.
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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This may be of some help to you,
even though it's a later T6 Steven. |
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StevenMurray
Newbie Joined: 19 Jan 20 Location: Aberdeenshire Status: Offline Points: 6 |
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Unfortunately mine doesn't have a #7 Fuse in either the upper or lower fuse boxes, and doesn't have any contacts in there to accept a fuse..
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2011 VW T5.1 Transporter
Duct Tape & WD40 = Man's Best Friend |
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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Each fuse has a couple of contacts on it's back. They are difficult to see. If you use one of these you can check your fuses. As the interior light works with the ign off: - With the ignition off. If the fuse is live at one check point but not at the other check point then it's a dud. |
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gregozedobe
Vanorak Joined: 22 Dec 06 Location: Canberra, Oz Status: Offline Points: -998266 |
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My T5 switches off the the interior lights approx 10 minutes after switching the engine off. Have you tried it with the ignition on ?
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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Do your interior lights only work
when the ign is on please Greg?
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StevenMurray
Newbie Joined: 19 Jan 20 Location: Aberdeenshire Status: Offline Points: 6 |
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Thanks guys. I've tried with the ignition on, off, engine running etc., etc.
Even sitting in it with the engine running, there's no power at the white socket on the left side of the dash or at the light itself in the roof. It's either looking like a fault in the BCM, or a loose connection in some hidden location. I see that some people have wired connector blocks etc. beneath the rubber mats under the front seats. Do all vans have this? Do any of the interior lights wiring go through here? Cheers lads for the suggestions so far. :) Steve.
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2011 VW T5.1 Transporter
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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How about running a supply from a piggyback fuse up to your interior light switch Steve. |
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gregozedobe
Vanorak Joined: 22 Dec 06 Location: Canberra, Oz Status: Offline Points: -998266 |
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I think my interior lights stay on all the time when the ignition is switched on, but I haven't actually tried it for any length of time. When the ignition has been switched off for a while they won't switch on unless I close a door, then they stay on for about 10 minutes, then automatically turn off (if I open & close a door, they will come back on for another period).
Edited by gregozedobe - 22 Jan 20 at 11:44 |
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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Thanks Greg.
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T5 TDI
Vanorak Joined: 05 Nov 05 Status: Offline Points: 3687 |
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The J519 (behind the dash on the passenger side) has a role in the interior lights. I think there is a fuse that is also link to to the J519 so it's vital to test each fuse with a test lamp or meter. It is best to test them in place because you may cause codes to cause confusion later.
Another oddity is that the way they work. With a permanent earth, a switched earth and a live that isn't necessarily live all the time. I'd definitely start with the other fuses and see if LED bulbs have been added.
Wash my mouth out with soap but there is an excellent description here - https://www.vwt4forum.co.uk/threads/switched-earth-in-interior-lights.1279274/ |
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2004 2.5 174
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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StevenMurray
Newbie Joined: 19 Jan 20 Location: Aberdeenshire Status: Offline Points: 6 |
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Cheers, that's given me a few ideas. I've managed to find my test light so gonna have a go tomorrow night and see what I can find. :)
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2011 VW T5.1 Transporter
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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From my end of the microscope
that there Pandora's Box, the one T5 TDi calls J519 suffers from Premenstrual Syndrome. Mine enjoys some mardy days. Some days J519 flattens my battery. Some days it doesn't. I send it to purdah by switching my interior lights off when I leave the van for more than a day. Switching the lights on when I want them, and off again when I don't is not a big deal. |
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T5 TDI
Vanorak Joined: 05 Nov 05 Status: Offline Points: 3687 |
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Haha Pandora's Box! You mean the one that all the evil things came out of? Sounds about right for the J519! Or did you mean this one from 1975? Much better ;-)
Edited by T5 TDI - 23 Jan 20 at 21:06 |
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2004 2.5 174
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Charlie Dog
Yardie Joined: 07 Aug 19 Status: Offline Points: 304 |
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I tossed up between the Greek 'un
and Room 101 T5. In hindsight, Room 101 does the biz better.
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gregozedobe
Vanorak Joined: 22 Dec 06 Location: Canberra, Oz Status: Offline Points: -998266 |
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BTW I've been running LED interior lights in my van for over 10 years with no problems. They must be better quality than the one I put in the cargo bay of my Golf R wagon, it has started to intermittently fail after only 2 years :(
The only oddity I've noticed in the van is they give a faint glow if switched on after the "expired timer forced off thing", if switched off they are totally off (no glow at all).
Edited by gregozedobe - 24 Jan 20 at 08:08 |
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