10 replies to this topic

[musicmanno1]

Hey all,

Everything has been working fine up until today. The fog light has stopped working, and the switch is not lighting up. I've checked the fuse (inline) and looks ok, having moved it with the lights on it got rather hot, and smoked slightly. (Obviously turned it off immediately!) and as the fuse and holder were looking particularly crusty I replaced the lot. So have got power to the switch but only momentarily before burns the fuse. The light does work but never turns on with the switch at this moment. Is this a faulty switch or something more serious. Sorry for the essay! Any help is appreciated!

Andy

[KernowCooper]

Take the wire off the switch that goes back to the fog light and switch on, if its ok then the faults in the wire from switch to light. remove the bulb and check the holder in the lamp for signs of corrosion joining the pins, and if you have a tester check for any earth leakage on the front to rear cable while the wires off the switch.

[CityEPete]

If im understanding right that sounds like the wire between the lamp and the switch is shorting to the cars body, where it passes through from the boot floor would be my first place to check.

[CityEPete]

Take the wire off the switch that goes back to the fog light and switch on, if its ok then the faults in the wire from switch to light. remove the bulb and check the holder in the lamp for signs of corrosion joining the pins, and if you have a tester check for any earth leakage on the front to rear cable while the wires off the switch.

Typed while I was typing, I agree ^

[musicmanno1]

Hey all sorry for the late reply. The light is working ok and the wiring in the boot is sound ( no contacts with the body etc) I'll have a look tomorrow at the back of the switch. Where does the wire run from the switch to the back of the car, is that inside or outside? I'll try and trace it back to see if there is any contact.

[CityEPete]

You should be able to follow the route from the boot along the loom. Are you an ernie ball musicman fan?

[KernowCooper]

The loom runs up the L/H Side windscreen piller along the roof and down into the boot, just do a contunity test on both ends of the wire to confirm its not broken and a leak to earth test at the same time. This will confirm the front/rear cable, this is where a Sealey Tester pays for its self ten fold, you can provide a 12v feed or earth at the flick of a switch, you can get the basic one without the lcd display for less than £22 here http://www.ebay.co.u...=item1c301c2219

 

I can diagnose faults in a matter of minutes with my professional model, but the one above will do the same job, you need to understand circuits though its no magic wand

[musicmanno1]

I'll do some digging 2morrow cheers for the advice I'll report back tomorrow. Not sure who ernie ball is I must be too young lol!!

[CityEPete]

Not to worry, musicman make musical instruments (I collect them), I read your user name as musicman number 1?

[musicmanno1]

Yes you do that's correct I wish I could say that I'm musical or even in the music industry but regretfully I'm not! The underpinnings of the name came from the kareokee song which I had in my head at the time!

[CityEPete]

Ha thats fair enough.