VW Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
Hello,
I have these after market led tail lights that were fitted when I bought the car:

When the ignition is OFF (key out), the brake lights works as they should.
When the ignition is ON, the brake lights is on constantly. (except the one in the rear window)

The brake light switch provides 12v and works properly.

When the ignition is ON, I measure 5.4v on the brake light cable even if I don't press the brake pedal, so it must get power from somewhere else, I guess.

When I press the brake pedal, the voltage is 12.4, as it should be.

If I pull the fuse to the brake light (13), the brake light in the window stops working, but the brake lights in the tail lights is still on, which also means that it must get power from somewhere else, right?

The problem is that I do not know how to proceed with troubleshooting.

I'm grateful for any help?
 
1 - 1 of 1 Posts
Top