migsan

Hello!

Anyone have any issue with the xenon or the control unit for the xenon bulbs?

Since last Friday, for 4 times, my left xenon turn off (Just the beam, the DRL still on) when I'm driving and I got the warning for burning light.

If I turn the car off, and tun on it light up again!

I see on vag-com an I have this error on 9 - Central Electrics:

00978 - Lamp for Low Beam; Left (M29)

012 - Electrical Fault in Circuit

Freeze Frame:

Fault Status: 01101100

Fault Priority: 2

Fault Frequency: 158

Reset counter: 9

Mileage: 80672 km

Time Indication: 0

Date: 2012.11.02

Time: 20:26:00

I Think could be the control unit on the left headlight... I this continue, I will trade the booth control units to see if the problem remain, and goes to the right side.

BTW,

Anyone can explain me these:

Fault Status: 01101100

Fault Priority: 2

Fault Frequency: 158

Reset counter: 9

The reset counter is the number of times that this occurs????

spijun

Here you have the answer:
http://wiki.ross-tech.com/wiki/index.php/00978

migsan

Thanks spijun. I have already read that. I will see how it works in next days...

migsan

About the meaning of the Fault Priority, Fault Frequency and Reset counter, I found it at: http://www.ross-tech.com/vcds/tour/dtc_screen.html

oaktreelimb

Most likely the xenon bulb is bad. You can swap left and right bulbs and re check.

migsan

My first thought is for the control unit of the xenon.
When I got some time I will swap the control units and see how it works, if the problem persist and goes to the other headlight...