Good morning, I have a problem that has been described in many forums - I do not have the dipped beam in Audi A3 2002. 1.6 16v Checked fuses, connected a new switch, relays under the board. On VAG-COM it only shows in the engine section the problem with the main relay J271 (inside like new)....

Is the voltage on the fuses passing?

You probably forget that it's VAG. With a computer for primitive installation ... The diagram, control lamp and nothing more is needed to find the fault.

He already wrote in the subject that everything checked . I don't know what advice I expect if there is nothing to check

The dipped beam goes through the steering wheel switches? I thought it was somehow separated .... You can access the schematic el. this beam / lights / cars? The ones I found didn't add much to the topic There is no electricity on the fuses or the plug on the bulb. The board and indicator from the lights come on and only the parking lamps are lit ...

What are your bulbs in your headlights? Do you have bulb controls (indicator on clocks)?

whatever the voltage on the fuses must be, because they are in front of the control module, directly after the switch

Osram bulbs - factory H1 Lights up and the whole console lights up. FIS does not show that something is not working. Pulling out a 15A fuse at positions 20 and 21 and makes a difference on the board. Pulling the fuse from the rear lights - 22 and 23, on the other hand, extinguishes the front and warns about the failure of the lights (the dipped beam indicator goes out)

Have you changed the main switch ??

I hooked up a new one - there was no difference so I left the old one which was undressed and cleaned.

Audi A3 2002 1.6 16V: Dipped Headlights Not Working Despite New Switch, Relays, Fuses

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Why do the dipped headlights on an Audi A3 2002 1.6 16V have no voltage at the bulb plugs even after replacing the light switch, relays and fuses?

Check whether voltage actually reaches the dipped-beam fuses and inspect the fuse-holder/light contacts for burning, because the fault is likely in the power path before the bulbs [#16579800][#16579725] The forum also noted that on this car the voltage should be present at the fuses, since they are directly after the switch and before the control module [#16583658] A wiring diagram and a test lamp were recommended, because VAG-COM is unlikely to pinpoint this kind of basic lighting fault [#16579836] One user also reported that fuses 20/21 affect the cluster display, while pulling rear-light fuses 22/23 makes the front lights go out and triggers the dipped-beam warning, so those fuse positions are worth checking in the circuit [#16583827]

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#1 16579664 10 Jul 2017 20:33

Anonymous Anonymous

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Post #1
16579664 10 Jul 2017 20:33

Good morning,
I have a problem that has been described in many forums - I do not have the dipped beam in Audi A3 2002. 1.6 16v
Checked fuses, connected a new switch, relays under the board. On VAG-COM it only shows in the "engine" section the problem with the main relay J271 (inside like new). Nothing else related to electrics shows.
When switched to low beam there is no voltage on the bulb plug. When switched to road, both bulbs light up.
Have any of you solved this problem? Any advice?
Best regards!

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#2 16579725 10 Jul 2017 21:01

Gunslinger Gunslinger

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Post #2
16579725 10 Jul 2017 21:01

Burned grip contacts?
#3 16579800 10 Jul 2017 21:28

milejow milejow

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Post #3
16579800 10 Jul 2017 21:28

Is the voltage on the fuses passing?

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#4 16579836 10 Jul 2017 21:49

ociz ociz

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Post #4
16579836 10 Jul 2017 21:49

Askaniusz92 wrote:
Nothing else related to electrics shows.

You probably forget that it's VAG. With a computer for primitive installation ...
The diagram, control lamp and nothing more is needed to find the fault.
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#5 16579854 10 Jul 2017 21:54

DiZMar DiZMar

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Post #5
16579854 10 Jul 2017 21:54

ociz wrote:
...
The diagram, control lamp and nothing more is needed to find the fault.

He already wrote in the subject that everything checked . I don't know what advice I expect if there is nothing to check
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#6 16583239 12 Jul 2017 15:04

Anonymous Anonymous

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Post #6
16583239 12 Jul 2017 15:04

The dipped beam goes through the steering wheel switches? I thought it was somehow separated ....

You can access the schematic el. this beam / lights / cars? The ones I found didn't add much to the topic

There is no electricity on the fuses or the plug on the bulb. The board and indicator from the lights come on and only the parking lamps are lit ...
#7 16583583 12 Jul 2017 17:25

ociz ociz

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Post #7
16583583 12 Jul 2017 17:25

What are your bulbs in your headlights? Do you have bulb controls (indicator on clocks)?
#8 16583658 12 Jul 2017 18:05

adam7009 adam7009

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Post #8
16583658 12 Jul 2017 18:05

whatever the voltage on the fuses must be, because they are in front of the control module, directly after the switch

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#9 16583827 12 Jul 2017 19:29

Anonymous Anonymous

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Post #9
16583827 12 Jul 2017 19:29

Osram bulbs - factory H1
Lights up and the whole console lights up. FIS does not show that something is not working.

Pulling out a 15A fuse at positions 20 and 21 and makes a difference on the board. Pulling the fuse from the rear lights - 22 and 23, on the other hand, extinguishes the front and warns about the failure of the lights (the dipped beam indicator goes out)
#10 16583922 12 Jul 2017 20:15

polmar polmar

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Post #10
16583922 12 Jul 2017 20:15

Have you changed the main switch ??
#11 16583961 12 Jul 2017 20:35

Anonymous Anonymous

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Post #11
16583961 12 Jul 2017 20:35

polmar wrote:
Have you changed the main switch ??

I hooked up a new one - there was no difference so I left the old one which was undressed and cleaned.
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Topic summary

✨ The discussion revolves around a persistent issue with the dipped headlights on a 2002 Audi A3 1.6 16V, where the user has already replaced the switch, relays, and checked fuses without success. The VAG-COM diagnostic tool indicates a problem with the main relay J271, but no voltage is present at the bulb plug when switched to low beam, although both bulbs function on high beam. Suggestions include checking for burned grip contacts, ensuring voltage at the fuses, and verifying the wiring through the steering wheel switches. The user confirmed the use of Osram H1 bulbs and noted that pulling certain fuses affects the dashboard indicators, but the issue persists despite cleaning and reinstalling the original switch.
Summary generated by AI based on the discussion content.

Audi A3 2002 1.6 16V: Dipped Headlights Not Working Despite New Switch, Relays, Fuses

Why do the dipped headlights on an Audi A3 2002 1.6 16V have no voltage at the bulb plugs even after replacing the light switch, relays and fuses?

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