OK, good news is I got a German electrical diagram for the Domingo. PM me if you want it. Bad news is I'm trying to troubleshoot what is (apparently) a common problem in Domingos: the rear window defrost and rear heater fan both run off a little "Motor fan control unit" box behind the glove box. Well, mine must have broken, cause I have no heat in the window and no fan in the heater. Apparently this is common, and easily fixable: A Czech guy here says "other [faulty] electronics might only control the rear window heater and rear heater fan. It is thanks to Karl, trivial defect which is easily correctable.". However Google Translate can't understand this german reviewer here who says "Keine Ahnung, aber davon jede Menge: Ein Steuerteil, über dem Handschuhfach, fürwasauchimmer, regelt wohl die heizbare Heckscheibe in Verbindung mit dem Fussheizunggebläuse im Fond(?). Nachdem ich auf der Platine alle Prozessor- und Speicherbauteile nachgelötet habe, (sahen schlecht verlötet aus) geht beides wieder.". So far I've got the fan controller out, but haven't figured out how its two relays work yet. Does the Sambar Van have a passenger compartment heater like this? EDIT: Never mind, the Germans have it #1 on their list of 'common problems'. Apparently the board needs resoldering. Should be easy.......?