I have a 2012 volvo vnl 670 and this thing has 7 Pins. Not 6 not 9 but 7. Can anybody help I cant get my ELD to turno on with this diag port.
Any body know why my 2012 volvo vnl 670 has a fkn 7 pin diag port instado of 6 or 9. Please help, cant get my eld to turn on with this 7 pin port