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Help with rear fogs

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Hello people, as above I'm having issues with the rear fog, it's just not working I have the twins fog grill but I can see the front fogs are not working as the wires are clipped but the rear ones don't seem to work either, I have the fog switch that operated front and back fogs, but even on one and two clicks the rear lights seem normal, I want my rear fog to work due to trying to get her ready for a mot, but I have found this wire hanging lose would this have been the cause 









I think this might be the one as it's yellow/red but not sure it's goes to the back if the car but I can't see the yellow/red wire on any Of the head light wires 









Here is the connector for the fog it's only has 4 wires and the furthest to right is a brown one ( pic not clear) 









The connecting pin slot in the middle bottom has no wire going through it 









Here is the switch the the bit that says ( 83a) the pin under that goes in to the slot that I mentioned has no wire through it 









Hope someone can help me to find out why my rear fog isn't working, and what side does the fog operate at the rear ( right or left lamp or both) 

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Hello  back had a look yesterday and I still can't get them
Working is there a fuse I can check I seen the bulb and it looks fine the thing is I opened both rear lights and all the bulbs on both lights are the same amount so which side has the fog, also would it be a possibility is a switch, just need some guidance to where to start
And which colour wire does rear fogs, all help appriciated in advance 

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The switch and plug connector are correct, the switch has 5 terminals but the connector 4 terminals because the 83a terminal is for the front fogs.

I'm not sure your car has front fogs - do they work??? If so, how do you switch them on?

Does the orange indicator light come on with headlamps on, ignition on and fog light switch clicked to the 2nd on position?

You don't say what year your car is, I have a 1981 wiring diagram and it doesn't have fog light wiring on it, other wiring diagrams are freely available online (rubjonny's sig has a link to loads of useful stuff I think).

                                

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Hello Paul thanks for the reply, the car is a 1982, but has the old fuse box (ceramic fuses) the grill has front fogs but they ain't connected, the switch used clicks in 2 positions, I turned headlights on and the switch is not lighting up on both positions, is there a fuse I can check on the fuse box or anything I can do with a multimeter ( which setting to use on multimeter to check connector or switch) hope someone can help 

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Baz,
you mentioned that you opened both rear lights and they had the same number of bulbs. The fog light isn't in the cluster. Have you got the separate extra light that is normally fixed to a bracket under the rear bumper (offside)?

The 2-click fog light switch is standard, even if you only have rear fog fitted. I think front fogs were only on Campaign models. The Cabby with 4 front lights has inner spots not fogs.
Good luck
Lee

1986 GTI Cabriolet ("dambuster")

2000 Mk4 Cabriolet Avantgarde (bought for the mrs)

2001 Zafira 1.8

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Thanks lee, yes your right they both did have same number of bulbs, mine isn't a campaign as it's a 1982 1.6, so think the previous owner put a grill on, would this of had a separate fog from factory ? Is so what colour wire operates the rear fog so I can check around to see if the light has been removed but hopefully wiring is till there, also with the switch no lighting up would this mean is the connector or fuse ? Sorry for the questions but just want to get it sorted 

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To check the resistance on the fog light switch connector, do I select ( 2K or 20K ) on my multimeter and put the black lead on COM and on to the brown on the connecting block, and the red lead on vmA, and on to the other leads, can this be done without ignition on or with ? Thanks guys first time I'm using a multimeter  O_o

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I haven't got my car here to check for you. Does the switch light up when you turn on your headlights? That is the grey and blue wire to the switch. I had a quick look at Haynes, but couldn't see the fog light in the wiring diagrams. If someone has fitted them later, perhaps they fitted the switch to control the extra front lights? The later front spots are wired into the main beam circuit - the spot light connectors are wired to the headlamp connectors. If you are not bothered about having fogs, ditch the switch and wire the front lights as spots?

1986 GTI Cabriolet ("dambuster")

2000 Mk4 Cabriolet Avantgarde (bought for the mrs)

2001 Zafira 1.8

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What bulb is the one on the left ( red one) I know the top is indicator/ reverse and bottom right is the rear light/brake light but what is the one on the left ?, I will hopefully
Wire the fronts up as fogs but I really need to get one on the rear working or installed for mot, so wondering what the one on the left one is used for ? 

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The large red section (full height) to the inside (when fitted on the car) is indeed the fog lamp. I think the larger rear lights lit up both left and right lamps. My car has the smaller lamps (being a cabby) so it has a single foglamp which is separate from the light clusters. I'm not sure if you'd be allowed to light up only the right lamp, since it might count as the left lamp not working for MoT and other purposes (all lamps fitted, must work - I think that's the rule?)

If you're having no luck tomorrow I'll check the wiring colours on my car, although its different you'd hope the wire colours are vaguely similar.

                                

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Another thing, its worth a quick check just to see if any fuses are blown. The old style fusebox is a bit tempramental for developing corroded connections, so it can look like the fuse is fine but the contacts are corroded and don't pass any electricity. A good clean up of all the connections and fuses, including gently bending back the tabs so there's a bit more force from the spring, helps a lot!

                                

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Thanks Paul I have cleaned the relays and check fuses before when I was experiencing problems with wipers a month ago, I will have another look tho just to make sure everything is ok, sorry had to correct myself I meant Il be wiring the fronts as spots, if you can check the wires for me Paul will appreciate it, the fog switch light ain't lighting up so I will make sure all fuses are ok and nothing has blown since my last inspection, thanks again guys 

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Baz, if you have a Haynes, there is a supplementary wiring diagram (Fig 9.81) for cars with Front and rear foglights, from Feb 1981, and also for cars with just a rear fog light (from Feb 1981).

According to the Haynes, if you have just a rear fog, it is in the left hand cluster. Wire colours are as follows:
switch terminal 31, brown wire to earth near fuse box/relay plate
switch terminal 83b, grey/white wire to fog light in left cluster, via a single connector behind the instrument panel
switch terminal +, grey/yellow wire to separate 8A fuse

If you have front and rear fogs, then there should also be a white/yellow wire from terminal 83a, and there is an 8A fuse attached to a relay, plus an 8A fuse in the fuse box.

Hope this helps, and sorry for the bum steer about fogs fitted to Cabbys.
Lee

1986 GTI Cabriolet ("dambuster")

2000 Mk4 Cabriolet Avantgarde (bought for the mrs)

2001 Zafira 1.8

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Thanks lee, no need to say sorry, appreciate the help mate I will have a look at the info you given me and hopefully sort it out, will keep you guys updates  :thumbs: thanks 

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For a RHD car, a single fog light should be centre or offside, so if there's only one it should be in the right. I think what they did was light both (left and right) on RHD models, I think (going from memory…) the "main" wiring goes to the left cluster, then a little wire connects the fog lamp bulb left to right cluster.

I've checked the regulations, it doesn't matter if the LH fog bulb is blown or not there, so long as the right hand fog bulb works fine.

                                

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Hello guys, I looked at my wires and I used the multimeter to check continuity I put the black probe in to the earth ( brown ) and the red to the white/grey and it beeped I then put the red to the yellow and grey and it bleeped on one click but then on 2nd click the red probe was put in to blue/white and no bleep, and on click 2 it only bleeps back on the white/grey wire like it was when it was on a off position, I traced the white / blue wire to a connector which then leads the blue / white wire to either the hazard lights or the rear screen heater, I then pulled out my rear heater switch and used the multi meter on that and it gave me bleeping when I tested around the switch pins but when I touched the pins of the fog light switch I got nothing, so what can it be down to now, I'm thinking switch but this blue/white wire seems bit dodgy as why is it going to the rear screen heater or hazards, is this normal ? I was out of time but I will pin point exactly to which switch this blue/white wire goes to 

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blue/grey is the instrument illumination, which dims with the dimmer.

                                

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Just had a look, on my car:

grey/yellow…………….+12V with headlamps on dipped/main beam (not sidelights or off)
grey/white…………….+12V when headlamps are on and fog light it switched to the 2nd (rear fogs) on position

Without looking at the diagram, I think grey/yellow is connected to either the light switch or G10 (back of fusebox) so it gives +12V unfused when the dip/main lights are on.

                                

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I think it may be my blue/white wire that maybe at fault or is it the switch as I can't get nothing from the switch, is the blue/wire wire on yours going to with the rear window heater or the hazards connectors thanks 
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