No Voltage @ 12V Outlet

[jwepjb]

Hi

 

i have no voltage at the 12v point (cigarette lighter)

i have checked all fuses and all ok.

i've taken the centre consol out and checked about but nothing appears wrong

I'm at a loss as to what to do next.

 

Phill

[paul.h]

What year is your C4 ?

 

Have you checked the socket with the engine running since on our C4 it is only live when running ?

 

If it is the 2004 to 2010 model then the Haynes manual gives the fuse for the front 12 volt socket as the bsi fuse F8 20 amp and it also does the radio. If it is the rear 12 volt socket and cigarette lighter then it gives the fuse as F9 30 amp. Have you used a volt meter to check for 12 volts at the socket, its wiring connector and also that the earth for the socket is good ? If you have been doing your checks using a plug in the socket and not a volt meter then maybe the plug is not reaching the positive middle connection in the socket.

 

When checking the wiring if you do not have 12 volts at the socket and its connector, then check at the fuse and work towards the  socket.

[jwepjb]

Hi Paul

 

2008 C4 5 door. 12v front socket, near hand brake and pretty sure I don't have a rear one. I have never actually sat in the rear seating, and the car has done 160000 miles. ( hell does that say something about me!!!?)

 

I have tried with engine on & off. The radio works OK. I used a meter to check and I'm not getting any voltage. Where would I check for an earth contact? And where do I get access to the wiring loom to work back to the socket.

 

Many thanks for your help !!!

[paul.h]

I think Haynes call the socket in the centre console the rear one. It shows fuse F9 as being the 3rd in from the left on the bsi. I would first check for 12 volts here. I suspect the wiring will run under the central console to the front, if not it may run along the left hand sill but it may be easiest to start at the socket and follow the wiring.

 

A quick check to see if the socket has an earth is to use your meter on ohms with one lead touching the outer metal of the socket and the other to a metal part of the body and if ok you should have negligible resistance.