View Full Version : Cigarette lighter not working
DeanoTS
09-06-2014, 09:16 AM
Hi all, my cigarette lighter socket in my TF stopped working about a week ago, I checked the fuse under the dash and its fine, I can't see anything related to the cigarette lighter in the fuse box under the bonnet, anyone have any ideas what it might be? cheers
mudfish
09-06-2014, 10:42 AM
Just had the identical problem with my TJ. Everything checked out fine but no power at the lighter socket.
Disconnect and take out the socket. There is a tiny link wire on the back of the lighter socket that transfers power from the cars connector to the centre terminal of the socket. This wire on mine was broken.
Couldn't really see the break but when tested with a multimeter there was no continuity. These lighters are just a generic item that will suit most cars. I used a spare one from a VS Commodore that I had. Works fine now.
Hope this helps.
DeanoTS
09-06-2014, 11:25 AM
Just had the identical problem with my TJ. Everything checked out fine but no power at the lighter socket.
Disconnect and take out the socket. There is a tiny link wire on the back of the lighter socket that transfers power from the cars connector to the centre terminal of the socket. This wire on mine was broken.
Couldn't really see the break but when tested with a multimeter there was no continuity. These lighters are just a generic item that will suit most cars. I used a spare one from a VS Commodore that I had. Works fine now.
Hope this helps.
Thanks so much for your reply, I will have a look now to see if mine is the same problem, much appreciated, cheers
DeanoTS
09-06-2014, 11:54 AM
Just had the identical problem with my TJ. Everything checked out fine but no power at the lighter socket.
Disconnect and take out the socket. There is a tiny link wire on the back of the lighter socket that transfers power from the cars connector to the centre terminal of the socket. This wire on mine was broken.
Couldn't really see the break but when tested with a multimeter there was no continuity. These lighters are just a generic item that will suit most cars. I used a spare one from a VS Commodore that I had. Works fine now.
Hope this helps.
Yes mine had the same problem, thanks so much for your help, much appreciated
mudfish
09-06-2014, 12:27 PM
Excellent result deano. You're very welcome.
rodpolky
30-01-2015, 02:24 PM
Is there more than one fuse for the ciggy lighter circuit??
I've just installed a KJ dash cluster loom into my TJ VRX so I could have a KE clock. Because I have the OEM satnav I've installed an aftermarket 12v socket in the centre console bin to charge my phone etc. When I was running the extensions of the ciggy lighter wires from the loom to the centre console bin I accidently touched them together when the car was on and it blew a fuse
I changed the fuse but now I only have power to one of the wires where both of them used to light up with the test light
When I poke my test light into the 12v socket the very back pin has power but not the barrel.
I must have fried something cause now the bloody socket wont work anymore :(
Any ideas?
I've searched high and low for blown fuses and cannot find any. I cant work out why it wont work anymore.
Rob's 380
30-01-2015, 04:51 PM
The power supply on a ciggy lighter is 12v + on the centre pin and - on the outer barrel as this will be connected to ground (the car body)so you need to test if you have 12v between the two connect a test light between the centre pin and the car body to see if you have a 12+ supply to the ciggy lighter if you have then it will be a bad connection between the barrel and the car body.
rodpolky
30-01-2015, 05:18 PM
Thanks Rob
Well I obviously have power going to it caus the test light is on when I touch one of the pins but not the other. So maybe run another earth??
rodpolky
30-01-2015, 05:43 PM
This should be so simple but for the life of me cannot get this socket to work again. I can't see how it could be faulty either. Since I've changed dash cluster looms over it won't work but surely cannot be that
rodpolky
30-01-2015, 05:44 PM
Does it matter which pin you connect 12v & ground to on these things. It's one of those generic Narva 12v sockets with two spade pins on the back (no light on this one)
Ensoniq5
30-01-2015, 05:49 PM
There is an illumination circuit associated with the lighter (green wire, white stripe), it will only have power when your lights are on. The lighter power wire (blue, white stripe) should have power with the key at ACC or IGN. The barrel is earthed via a black wire to the junction box, while the illumination circuit is earthed via a black wire with yellow stripe via the rheostat. If you run your test light across the rear pin and the barrel and it lights up, the socket is working correctly. The illumination circuit is powered by the tail light relay and 10amp fuse, any fault here and you won't have tail lights.
EDIT: Just read your last post. The above relates to the standard socket. On your generic one, the centre pin at the back of the socket must be 12V+ and the barrel must be earthed. Use a multi-tester to find connectivity if the pins aren't labelled.
rodpolky
30-01-2015, 05:50 PM
So I've put the test light inside the ciggy lighter on centre pin inside the barrel that makes contact with my usb charger for example. Yep power there. Tried running another earth and nothing.
What next??
Ensoniq5
30-01-2015, 05:52 PM
What are you connecting the other end of the test light to?
rodpolky
30-01-2015, 05:54 PM
Just a metal panel on the car
Ensoniq5
30-01-2015, 05:57 PM
Try connecting it (if possible) to the barrel. Basically you want to see if there is voltage between the pin and the barrel. If so, the socket is working fine and the problem could be with whatever you are plugging into it.
rodpolky
30-01-2015, 06:01 PM
the lights on the dash aren't working either now!! Going from bad to worse today. Can't see a fuse blown either. Arhhh
rodpolky
30-01-2015, 06:02 PM
Try connecting it (if possible) to the barrel. Basically you want to see if there is voltage between the pin and the barrel. If so, the socket is working fine and the problem could be with whatever you are plugging into it.
OK. Yeah I've tried a few different things to plug in and nothing is working
Ensoniq5
30-01-2015, 06:07 PM
Check 10A fuse in engine-bay fuse box
Ensoniq5
30-01-2015, 06:09 PM
Also, make sure that the barrel earth is the solid black wire (no stripe) and the power wire is the blue wire with white stripe, not the green wire. Green is the illumination circuit power, if your socket is not illuminated it should not be connected.
rodpolky
30-01-2015, 06:19 PM
10a fuse was blown in the engine bay so dash lights are OK now (must have done when I arked out the power/earth wire together for the ciggy lighter). Yeah I have the right wire's as the illumination wires still have the globe holders/globes attached to them. I've pulled out the globes but left the rest
Too dark now so will have to have another go tomorrow morning. Given that I've changed the dash cluster loom to a verada one I hope it's not something to do with that. I just want to get the car back together and take it for a drive
I get OCD when something doesn't work as it should!! Ha Ha
Ensoniq5
30-01-2015, 06:29 PM
Yep, know the feeling well! Good luck tomorrow.
rodpolky
30-01-2015, 06:49 PM
Thanks mate. Got a bad feeling will be a repeat of today
rodpolky
31-01-2015, 12:17 PM
Tried all day to get this bloody thing working. No good. I think its got something to do with the new loom but weird thing is i have power at the green/white wire where it should be but there must be a fault somewhere with the black. I tried grounding it elsewhere with no joy
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