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84' 928 Front fogs not working.

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Old 12-18-2016, 03:30 PM
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Blagave
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Default 84' 928 Front fogs not working.

I am a little confused as to which lights are aux. driving light and which are fog lights.
The switch below the headlight switch says Fog lights in manual and is fuse 1
When the headlight switch is turned on the outer lights automatically come on, which I am guessing are the aux. driving lights and the two inner are fog lights.
Aux. lights are Fuse 2

Here is my dilema, I have power to fuse 1. (fog lights), but when I turn switch on there are no lights.
Fuse 2 has no power and is aux lights, which work when the headlights are turned on.

When I was testing fuses I accidentally touched fuse 3 with fuse 2 and the fog lights came on.

Wondering if previous owner mixed up wiring at lights.
Old 12-18-2016, 03:50 PM
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2002M3Drew
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Could be the relay for the fog lights? My relay was bad when I bought my car. Replaced it and all is good.
Old 12-18-2016, 03:53 PM
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Blagave
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Originally Posted by 2002M3Drew
Could be the relay for the fog lights? My relay was bad when I bought my car. Replaced it and all is good.
Yes, relay XII per Alan's diagram. I tried switching with another common relay and there was no change
Old 12-18-2016, 05:38 PM
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Wisconsin Joe
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If it's a Euro Grey Market import, then all bets are off.

Originally, the outer lights are fog lights that also have a dimmer parking light in the housing. The inners are driving lights that come on with the high beams.

US cars have only a parking light on the outside, and a fog light on the inside.

The confusion comes in because the "federalization" process was supposed to bring the cars into compliance with US requirements. Some cars had the fog/driving lights converted fully to US operation, some weren't converted at all, some were partially switched over.

In my car, the lights themselves were switched from Euro fog/parking and driving lights to US parking and fog lights. But the operation wasn't converted much, so the inside lights were synched to the high beams, and the outside were parking only. No fog light operation. The wiring was still all there, so I found a way to install a LED bulb into the parking light housing and hook it up to the intact wiring for the fog lights. It now operates the way it's supposed to, even though the light housings aren't quite right.

I'd like to find a set of Euro fog/driving lights to make it "correct", but it's ok as it is.
Old 12-18-2016, 05:47 PM
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Blagave
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Originally Posted by Wisconsin Joe
If it's a Euro Grey Market import, then all bets are off.

Originally, the outer lights are fog lights that also have a dimmer parking light in the housing. The inners are driving lights that come on with the high beams.

US cars have only a parking light on the outside, and a fog light on the inside.

The confusion comes in because the "federalization" process was supposed to bring the cars into compliance with US requirements. Some cars had the fog/driving lights converted fully to US operation, some weren't converted at all, some were partially switched over.

In my car, the lights themselves were switched from Euro fog/parking and driving lights to US parking and fog lights. But the operation wasn't converted much, so the inside lights were synched to the high beams, and the outside were parking only. No fog light operation. The wiring was still all there, so I found a way to install a LED bulb into the parking light housing and hook it up to the intact wiring for the fog lights. It now operates the way it's supposed to, even though the light housings aren't quite right.

I'd like to find a set of Euro fog/driving lights to make it "correct", but it's ok as it is.
This forum is awesome. Thank you Wisconsin Joe for the information. Sure enough, the center "fog lights" come on when I hit high beam, just like you said and the outer aux driving lights are always on when turning on headlights. Go figure



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