a6 C5 black screen after installation - need help !

Technical issues

Вопросы по установке. Монтаж, пайка, проводки...
Questions about the installation. Mounting, soldering, wiring ...
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burny
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15 мар 2019, 20:39

 

Сообщение  02 авг 2020, 17:02

hello guys,

I am testing my colormfa into my A6 C5, before closing the cluster.
But the screen remains black !

I have checked twice the connections.

There was a mistake with the ground and ignition wires. I solded 22 and 23 (blue connector) instead of pins 23 and 24. Now I have sold it correctly, but it still doesn't work.

When I switch on the ignition, I can see that illumination of colormfa is ON. So I assume the power and ground pins are OK, but I have absolutely no information on the LCD. :o

below you have a small video of my problem
https://wetransfer.com/downloads/deb9e3 ... 54/086137

where the issue could come from ?
any help will be appreciated ! :) :)
A6 C5 2.7T 2002 - ARE engine
denis94
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16 июл 2020, 20:40

 

Сообщение  02 авг 2020, 21:19

hello burny (from audipassion?),

you inverse alimentation of the card its the probleme .
i think that something flash in the regulation of the mainboard of colormfa.

good luck...
AUDI A6 allroad 2.5TDI 2003 TIPTRONIC
burny
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15 мар 2019, 20:39

 

Сообщение  02 авг 2020, 23:23

yes it's me.

I hope that it can be repaired
A6 C5 2.7T 2002 - ARE engine
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autopilot
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28 дек 2017, 19:07
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Сообщение  03 авг 2020, 17:42

If you sure what ColorMFA LCD backlight is working, check flexible cable from LCD. Disconnect and connect it back.
Добавьте данные об автомобиле в подпись (профиль -> подпись). Чтоб не спрашивать постоянно... :)
Please add info about your car to you signature (profile -> edit signature). To not ask every time... :)
burny
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15 мар 2019, 20:39

 

Сообщение  03 авг 2020, 17:54

Thanks i will try..

Cross the fingers! 😊
A6 C5 2.7T 2002 - ARE engine
burny
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15 мар 2019, 20:39

 

Сообщение  12 авг 2020, 19:20

yeehhaaah it works !! :Yahoo!: :Yahoo!: :Yahoo!:

https://wetransfer.com/downloads/bb17ef ... 705/1c1e32

thanks a lot guys !! :good: :good: :good:

now I need to understand why boost pressure remains at 0.00, while I have connected additionnal wire to ECU loom..
A6 C5 2.7T 2002 - ARE engine
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autopilot
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Сообщение  13 авг 2020, 19:25

How you see boost value ? At idle ?
What engine code ? How you connect (what wire on engine ECU, what pin in cluster connector) ?
Добавьте данные об автомобиле в подпись (профиль -> подпись). Чтоб не спрашивать постоянно... :)
Please add info about your car to you signature (profile -> edit signature). To not ask every time... :)
burny
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15 мар 2019, 20:39

 

Сообщение  13 авг 2020, 19:53

Yes ,
I was in the garage, speed 0km/h and i pressed on gas pedal several Times (strongly and shortly). But it remains at 0.0bar.

I checked also on measure group 115, and boost pressure is moving when i press the gas pedal .

My engine is a 2.7T code ARE.

I checked, i am on pin32 into the gray connector.
I need to open again the ECU box, but normaly i am on wire 101. (I have official electrical schemes)
A6 C5 2.7T 2002 - ARE engine
burny
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15 мар 2019, 20:39

 

Сообщение  14 авг 2020, 20:15

finally, everything works correctly, even the boost pressure gauge. :Yahoo!: :good: :good: :good:

i have a small bug when i want to repeat the acceleration 0-100 km/h. "Reset" button is not working, I will share a movie in a separate topic . But that's not a big deal :)
A6 C5 2.7T 2002 - ARE engine
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