Liebherr 544 error

[soo]

Hy

Can somebody help me with any solutions to error e61 (comunication problems) to a liebherr 544?

Thanks

[soo]

Hello again,

More exactly the liebherr 544 doesn't go forward or back, it only turns right-left and i can't move it from neutral position. Any suggestions will be helpful.

Thanks

[soo]

Hello again,
Regarding the liebherr L544 now I have another error E85(something connected with engine speed sensor). If someone has any information about this or a service manual with electric schematic it will be very helpfull.
Thanks