Rear Fog Light Not Working

[2004AUY85kwTDI]

Hi, my rear fog light is not working. I have seached a lot on the forum and have just checked the wiring in the 5th door. The wiring looks to be fine ( I repaired a lot of those wires on my MK1 sharan).

The fog light indicator in the instrument panel has a week light that comes and goes, but when i use the break or left/right direction lights the light gets brighter ( but not as bright as when I switch on my rear fog lights)

 

In my instruction book it says that the front fog light fuse is nr 26. The rear fog light is not mentioned at all in the book, is it the same fuse for front/rear fog lights ?

 

Any good inputs on how to trouble shoot ? Start dismantling the main light switch, and check if the grey wire gets current ?

[chromedome]

Judging by what you are saying about the fog light symbol you could have a bad earth connection. Someone on this forum will probably be able to tell you where the earth post is in that area. You also mentioned one fog light, I think you should have two, mine has.

[2004AUY85kwTDI]

You are right, I have two rear fog lights. My reverse light work fine, it has the same earth connection as my fog lights. If I am not wrong that means that the earth is ok ? Maybe the wires are not broken in the area visible when I remove the rubber protection, but somewhere else ?

[chromedome]

Some wires break inside the insulation so it looks ok. You will need to pull each wire to see if they feel "stretchy" and this would indicate a broken wire.

[2004AUY85kwTDI]

Just disconnected the plug for the foglight (located inside the car, inside the room were the car jack etc is). The wiring from that plug to the fog light is ok. When I tried my testlamp it shows no current comming from the light switch, so the problem is somewhere in the "front" of the car.