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Omega Help Area => Omega Electrical and Audio Help => Topic started by: Martin_1962 on 16 November 2008, 19:37:14

Title: No fog lights
Post by: Martin_1962 on 16 November 2008, 19:37:14
Fuse OK bulbs look OK and light goes on on dash.

Rear fog lights do not work

What can I check please?
Title: Re: No fog lights
Post by: HotShot on 16 November 2008, 19:55:32
Have you got a multi-meter / volt-meter to check if you have current?

Sounds silly, as you will me not be so silly, but, are you clicking the correct switch (front fogs = no light on dash while working, rear fogs = light on dash when working).

Also...do you have the headlights on & the engine running?
I think you need the headlights on before the rear fogs work.

Hope this helps.
Title: Re: No fog lights
Post by: Andy B on 16 November 2008, 21:00:23
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Fuse OK bulbs look OK and light goes on on dash.

Rear fog lights do not work

What can I check please?

There's a relay somewhere in the system to prevent you from leaving your fogs on for days ... & days  ... & days after the last bit of morning ,mist, you can hear it unlatch when you turn your lights/ignition off.
Title: Re: No fog lights
Post by: Martin_1962 on 16 November 2008, 22:06:26
Trace down wiring - oh dear - I'll start with a relay hunt (where is it MDTM?) then down to wiring.

Correct switch - 8 years driving the things ;D
Title: Re: No fog lights
Post by: Kevin Wood on 16 November 2008, 23:13:58
It's not looped through the towing connector to disconnect the fogs when towing I suppose? Could be grot in the contacts in the socket?

Kevin
Title: Re: No fog lights
Post by: Dave DND on 16 November 2008, 23:31:23
Worth swapping a fog bulb for an indicator bulb, just to check the bulb is ok ?

Do you have voltage at the bulb socket?
Title: Re: No fog lights
Post by: markey mark on 16 November 2008, 23:34:53
broken wire kevin near passenger side boot hinge ! :y
Title: Re: No fog lights
Post by: Martin_1962 on 16 November 2008, 23:38:57
Quote
It's not looped through the towing connector to disconnect the fogs when towing I suppose? Could be grot in the contacts in the socket?

Kevin


DOn't think so - but I have hit the towing connector on the ground last week
Title: Re: No fog lights
Post by: Martin_1962 on 16 November 2008, 23:39:29
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Worth swapping a fog bulb for an indicator bulb, just to check the bulb is ok ?

Do you have voltage at the bulb socket?

Swapped with reverse :(
Title: Re: No fog lights
Post by: Martin_1962 on 16 November 2008, 23:39:57
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broken wire kevin near passenger side boot hinge ! :y


Next thing is test tow fog - incase the hinge wire is gone
Title: Re: No fog lights
Post by: Martin_1962 on 17 November 2008, 10:17:41
12S 12N undamaged

Should I hear a relay click?

Will try a multimeter across the 12S tonight to check the feed to boot
Title: Re: No fog lights
Post by: Marks DTM Calib on 17 November 2008, 10:35:41
The fogs normaly do route via the towing connector.....and the quality of the contacts on the towing connector is so piss poor its a wonder they ever work!

There is no relay for the rear fogs....but it does go via fuse F28
Title: Re: No fog lights
Post by: Andy B on 17 November 2008, 12:06:43
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The fogs normaly do route via the towing connector.....and the quality of the contacts on the towing connector is so piss poor its a wonder they ever work!

I bet the vast majority of 12N sockets sold are those without the extra switch inside to turn off the car's fog lights.

Quote
There is no relay for the rear fogs....but it does go via fuse F28
What's that on track 1555/6 towards the top of Mr Haynes diagram?  :-/ It's not specifically labelled, but i think it's the main light switch
Something definitely makes a click in the light switch if you turn your lights off with the rear fogs still turned on.  ;)
Title: Re: No fog lights
Post by: Kevin Wood on 17 November 2008, 12:09:34
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The fogs normaly do route via the towing connector.....and the quality of the contacts on the towing connector is so piss poor its a wonder they ever work!

Agreed. I didn't bother, given that the probability of fog that I consider bad enough for a fog light is low, multiplied by the probablility of me towing....

Kevin

Title: Re: No fog lights
Post by: Martin_1962 on 17 November 2008, 13:51:10
I didn't remove that link either - but I'll pull out the connector during the week and check
Title: Re: No fog lights
Post by: Martin_1962 on 17 November 2008, 18:15:58
Relay still clicks
Title: Re: No fog lights
Post by: markey mark on 17 November 2008, 21:14:18
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Relay still clicks

i will say it again broken wire at the passenger side hinge ! had two of them now  :-?
Title: Re: No fog lights
Post by: Andy B on 18 November 2008, 00:28:55
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Relay still clicks

i will say it again broken wire at the passenger side hinge ! had two of them now  :-?

Sorry Mark  :-/ Say again ......  ;)  :y  :y
Title: Re: No fog lights
Post by: Martin_1962 on 22 November 2008, 10:57:53
Fuse 28 is OK, power at fuse 28, no power at 12S or the socket 12S is connected through. Or at teh blue black cable into the boot
Title: Re: No fog lights
Post by: tmx on 22 November 2008, 11:20:56
yeah my back ones died because of a damaged wire i cut the loom back and replaced the wires that were damaged and the back ones now work! the relay everything etc worked fine on myn just the lights wouldnt come on
Title: Re: No fog lights
Post by: Martin_1962 on 22 November 2008, 11:29:22
Bit more

The dash light is now not working, don't know if it requires a load or not.

The relay which controls the fogs is clicking at the correct time so that appears OK

Tempted just to wire from fuse panel to rear loom, after checking the fuse area again!
Title: Re: No fog lights
Post by: markey mark on 22 November 2008, 11:30:34
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Relay still clicks

i will say it again broken wire at the passenger side hinge ! had two of them now  :-?

 ::) ::) ::)
Title: Re: No fog lights
Post by: Martin_1962 on 22 November 2008, 11:34:37
Dash works now - fuse 28 put back in :-[

I think either later today or tomorrow I will trace the wire back to the boot.

What route does it take from the fuse panel to the LHS cable run?
Title: Re: No fog lights
Post by: Martin_1962 on 22 November 2008, 11:36:16
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Quote
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Relay still clicks

i will say it again broken wire at the passenger side hinge ! had two of them now  :-?

 ::) ::) ::)

So where is it broken or disconnected?

Behind fuse panel?

On run down LHS of car?

Under the rear seat?

Very annoying
Title: Re: No fog lights
Post by: markey mark on 22 November 2008, 11:45:27
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Dash works now - fuse 28 put back in :-[

I think either later today or tomorrow I will trace the wire back to the boot.

What route does it take from the fuse panel to the LHS cable run?

down the passenger side  :y
Title: Re: No fog lights
Post by: Martin_1962 on 22 November 2008, 12:00:28
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Dash works now - fuse 28 put back in :-[

I think either later today or tomorrow I will trace the wire back to the boot.

What route does it take from the fuse panel to the LHS cable run?

down the passenger side  :y

That bit I am OK with - that is where the LPG wiring is - it is the bit throught the dash I am thinking about.

WIll do the passenger side next see if i get 12v or not

Will check my cable pile in case I need to go from fuse panel to LHS run
Title: Re: No fog lights
Post by: Martin_1962 on 22 November 2008, 12:01:03
MOT in 6 weeks and I have jobs to do and nowhere warm to do them

aghhhh!!
Title: Re: No fog lights
Post by: markey mark on 22 November 2008, 12:18:08
on the passenger hinge there is a plastic casing under that are the wires remove the plastic and you will see the wires  :y