So my audi 90 typ 85 has factory fog lights, and has a relay in the slot 1 (relais nebelscheinwerfer). As fog lights work on the parking lights or headlights? On the light switch, position 1 or 2? When I switch on the parking lights (position 1) and turn on fog lights switch hear how the relay is activated but the fog lights are not working. When I remove the fog relay, connect pin 30 and 87, then I can turn on the fog lights without the light switch ... where is the problem?
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Defective relay - just try another one!
Josef
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I tried to put another relay but the same happens ... It's a classic relay which only conducts current and voltage, the same as the horn ... but the interesting thing is that the relay is no electricity at the fuse fog and when I connect directly to pin 30 and 87 then have the power to fuse fog lights and fog lights are working ... When I turn on fog lights over the light switch then have the power to fuse only as far as the relay need to be activated ... can be a problem in the light switch?
Can you put a scheme of linking fog at Audi, to see in what could be the problem?
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Fog light relay function depends on local traffic rules. In Germany it is not permitted to use fog lights with parking light only
Relay 1 doesen´t switch the lamp itself, it only switches the plus wire from your fog light Switch.
You can bridge pin 30 to pin 87. My Audi has this bridge in condition as supplied to custmers in Switzerland 1987
Hannes
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Hello all,
there are 3 single pin connectors below the central eclectric (I think white, grey and red). These are connected either in a way to meet Swiss or German law. This is a simple change, no extra wireing required.
Ciao
Werner
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Please check vour pin 85 in the slot 1 for the relay.
It should have +12V if the light switch is on (position 1 and/or 2) and ignition is on.
Pin 86 should be connected to ground "-"Then the relay should connect pin 30 and 87 if the light is on, in the same way as you did manually.
If it doesn't work, you could bridge pin 30 and 87 permanently as Hannes proposed, then you don*t need the relay.
Josef
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Thanks for your answers ...
I think the problem is the light switch ... I tested the installation, wiring is good .. no interruption wire .. position 2 on the light switch did not work before, so I connected to the parking lights, and now the lights turn on when the parking lights... I currently make a bridge to pin 30 and 87 until I replace it with the correct light switch ...
Will the fog switch heat without relay?
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The fog switch always switches the 110 watts power to the fog lights
The relay interrupts the contact only if certain conditions exist (country-specific)To relieve the switch, you need an additional relay (light update not by Audi)
Regards,
Hannes -
That's what I'm talking about, just switch fog lights can not pass such a power, it is necessary to relay .. but I'll not touch anything until I find a new light switch ... Thank you again for your answers ... best Regards
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