alright the car is an 05' B6 a4 1.8t quattro. The problem is when i try to set my alarm it does not activate. it locks the doors but i don't get the indicator noise that it is active and the light does not blink. When i put my key in the ignition and shift into drive the trunk indicator says it is open. I check and it is not. I decided to VAG it to see what was up and i got this code.

01013, wsc: 128887
02104: light detection sensor
-g399: short circuit to ground
[sporadic]

does anyone know what this is and where i can find it so i can fix it? I look forward to all help. Thanks in advance.

 

Bump, anybody have any ideas?

 

Sorry, Im not finding those codes.

Did you try to search for them?

Try clearing them, see if they come back.

 

I'll clear the code and see if it comes back. Do you know anything about a light sensor in the trunk? Maybe if i find that I can see if it is not grounded properly.

 

Idont, but that sounds like your problem.......

 

Yeah, its something wrong with the trunk. That alarm won't arm because it probably thinks the trunk is open. I've never heard of a light sensor in the trunk, but there should be a sunlight sensor in the interior (in a B5, its on the dash). I would check the trunk locking mechanism.

 

Codes should be max of 5 numbers.

Too many 8s?

 

01013 = AC compressor clutch, load signal and fault is wiring or AC system fault,

the other code sounds like a chassis code and could be something to do with solar sensor which is part of the AC system so each code could cause the other and I would put it down to AC fault