I've just got the ecoRoute HD and a nüvi 1390T. The ecoRoute HD hooks up to the nüvi just fine but will not connect to the engine. The car is a Ford Focus FlexiFuel 2003.
I have tried several times and reseted the units, updated the software and so on without luck. I also tried on Volvo S40 and it works just fine there, so the unit seems to be in order.
The ecoRoute HD is the European model 010-11380-10 and the ODB II-port seems to be using J1850PWM by looking at the pins.
Help!