Audi A6 C7 headlight problem

[szymek]

Hi
Friend brought me a car with a problem. Shows blown turn signal bulb error on dashboard. After scanning, there is an error in VCDS but the indicator works ... Any ideas?


Address 09: Cent. Elect. (J519) Labels:. 4H0-907-063-V2.clb
Part No SW: 4H0 907 063 DH HW: 4H0 907 063 AH
Component: BCM1 2.0 H20 0311
Revision: 15020001 Serial number: 00000988168602
Coding: 0105001540349F6044014080000018000F9D83082F08020100000894E100140200400024030000
Shop #: WSC 02391 785 00200
VCID: 71BFD19E41AD6983ADD-8024

Subsystem 1 - Part No SW: 4G2 955 119 HW: 4G8 955 119 A Labels: 1KX-955-119.CLB
Component: WWS57X 141219 H37 0080
Serial number: 150112082224
Coding: 0045F7

Subsystem 2 - Part No SW: 8U0 955 559 B HW: 8U0 955 559 B Labels: 8U0-955-559.CLB
Component: G397_RLFS H06 0002
Serial number: 23694405
Coding: 02006D

Subsystem 3 - Part No SW: 4G0 941 531 BE HW: 4G0 941 531 BE
Component: E1 - LDS H07 0044
Serial number: 30 01 2015 00000760

Subsystem 4 - Part No SW: 4H0 907 658 HW: 4H0 907 658
Component: AQ_Hum_Sensor H03 0003
Serial number: 16680E87000000000001

1 Fault Found:
01497 - Bulb for Blinkers; Front Right (M7)
012 - Electrical Fault in Circuit - Intermittent
Freeze Frame:
Fault Status: 00101100
Fault Priority: 2
Fault Frequency: 8
Reset counter: 222
Mileage: 207266 km
Time Indication: 0
Date: 2020.11.03
Time: 19:25:03

 

[Derek]

Hello

The fault code shows as "intermittent" which means it is not currently faulty.
This could be because there was a problem in the past and the fault code was not cleared, or that the fault only happens sometimes

I would clear the code and see if it comes back. If it does come back, check the bulb and if it shows any discolouration, I would replace it as the filament may be old and the wrong resistance now. If the fault still happens sometimes after that, check the wiring and connections etc.

Best regards
Derek

 

[szymek]

Hi

the fault returns sometimes after one day, sometimes after two ...I need to check connection on power module 4G0 907 397Q because from what I read it is also for turn signals
This is facelift model led lights

 

[Uwe]

Check all connections between the BCM and the relevant lamp. I would apply contact conditioner while you have the connections apart.

-Uwe-