Do I have a short or bad module? Please help

[Jenssy85]

Was told today by a cop today that my rear license plate lights are out and one reverse light is out. Gave me a warning and went on his way. I picked up new bulbs and just tried installing them with no change. The bulbs that were in the car look good except for one. The Amber bulb looks like it burnt but the wire in the middle is intact. Here is the faults from the log. Someone PLEASE help out. Thanks in advance 🤞👍

46 Central Module Comfort System

System description: Komfortgeraet H15
Software number: 4F0910289E
Software version: 0100
Hardware number: 4F0907289E
Serial number: 01003013850000
Coding: 0423997

Subsystems:
System description: Sounder No Answer

Trouble codes:
01504 - License plate lamp Open circuit/short circuit to ground
static
00929 - Lock unit for central locking Frt. pass. side
static
02199 - Right tail light bulb 2 Open circuit/short circuit to ground
static
02735 - Right Tail Light Lamp 3 Open circuit/short circuit to ground
static
01134 - Alarm horn No signal/communication
static
01134 - Alarm horn Faulty
static
01502 - Left rear fog light bulb Open circuit/short circuit to ground
static
01506 - Right rear fog light bulb Open circuit/short circuit to ground
static
01519 - Right back-up light bulb Open circuit/short circuit to ground
static
02198 - Left tail light bulb 2 Open circuit/short circuit to ground
static

- - - Updated - - -

My parking lights and turn signals work. horn works fine also.

[cal3thousand]

You have a short somewhere in you system. If you were careful about reading those faults and had an electrical diagram of that area, you could trace it to the culprit. I would guess it's in the trunk lid area since those are giving you trouble as well as being an area that is subject to harsh vibrations/forces from the lid closing.

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[Jenssy85]

Been searching online for diagrams and only came across this one so far. Guessing I should start by checking to see if I'm getting power to the bulb sockets? Sorry if I sound like a noob

https://www.audiworld.com/forums/att...tail-light.pdf

[Grigor@Bestiale]

Best diagram is here my friend: Erwin.audiusa.com
For $35/day you can download it + a ton more.


Sent from my iPhone using Audizine

[jamesb]

First off unless you are blowing fuses you don’t have a “short”.
I’d check wires that feed those circuits - if they go through a hinge and are subject to bending they could have broken where they flex.

[Jenssy85]

Wanted to post an update on the problem I was having. It ended being a loose connection. I bought a replacement central control module off eBay for $15. I found the loose connection once I went to go unplug the brown connector. It wasn't clicked in.
Thank you for the help. 👍

[cal3thousand]

Wanted to post an update on the problem I was having. It ended being a loose connection. I bought a replacement central control module off eBay for $15. I found the loose connection once I went to go unplug the brown connector. It wasn't clicked in.
Thank you for the help. 👍

Glad you got it sorted. Thanks for posting back as it really helps others in the future.

[Nizmo]

I remember pulling the taillights and seeing some minor corrosion on the connectors, was similar to the B5 generation issues with the twist-lock style bulb sockets. The C6 I "forget" but has another type of socket on the tail housings that cause intermittent light inop issues.

I just ground away lightly with a pick any surface corrosion before it pitted/corroded both sides.

[datax976]

Wanted to post an update on the problem I was having. It ended being a loose connection. I bought a replacement central control module off eBay for $15. I found the loose connection once I went to go unplug the brown connector. It wasn't clicked in.
Thank you for the help. 👍

I was wondering, how did you pull the trunk apart to look for loose connection? I have the same exact issue. my taillights all of a sudden went out. both of them that light the license plates. do I take apart the trunk from inside the lid? or do I pull apart the panel outside of the trunk that holds the license plate lights? thanks@