Cannot read bmw e39 (1999) with a 20pin switch

[Andrii]

When I tried to connect my diagzone to bmw e39 (1999) with a 20pin switch to obd i got - the connection failed. But when I tried to connect the obd a simple scanner it got well. What can be a reason?

 

[Sebulba1]

Yesterday i connect the same car. E39 523 98' without any problems. Check the extension cable.

 

[EgisDiag]

Now e39 1999 connected with 20pin connector with no problems.

 

[* * * AS * * *]

после обновления микропроцессора mucar bt200 е39 читается только блок двигателя.