Audi RS2 - Fuse nr 4 popping

[Håkono]

Hi!
I got a problem with fuse nr 4 (15A). It doesn't matter whether the ignition is on or off, the fuse pops the instant you put it in.
Found some wire diagrams and have disconnected the most of what i think is related to fuse nr 4:

• Climatronic panel
• Instrument (speedo)
• Radio
• cig lighter
• Central locking sentral (motor V94)
• Interior light front and back in the roof

Also checked the wiring between back roof to the hatch.

On the wiring diagram from fuse 4 it goes a red/blue wire to connection A23 (connection (30al), in dash panel wiring loom). Is that the light brown connector located to the right on the relay board under the dash (nr 2 from the bottom)?

[Tractor Dave]

Have you tried a short finder probe?

[Håkono]

No, i dont have that tool. I have replaced the 15A fuse with a 5w bulb so i can see if the problem is solved or not when i disconnect things or following wires.

[Håkono]

Have this Tone generator on my job. I will give it a try and see if i can locate all wiring and hopefully locate the problem ??

[Håkono]

Fault located to the right sun visor clip. This sun visor has integrated light beside the mirror and the sun visor clip has +12v connected