Bentley Specs For Auto Heat???

[2MEKE]

Can someone with a Bentley/Factory manual please give me the specs (ie resitance) for the cabin/heat exchanger sensors for auto heat system in a 83 SC Euro? I understand Bentley also has a testing/setup procedure? Also, when switched on (with sensors connected, ignition on, rotary switch position 1) the servo goes to one end. At position 10 it bypasses the sensors and the servo goes to the other end. It doesn't seem to make any difference in the intermediate settings. At setting 10 it should run the engine fan, but does it run the fresh air blower (trunk) at oter settings?