Mi16 loom from a 405 , resistor and plug .

[hoodygoodwood 72 3 Cars]

I am fitting a Mi16 engine into a 309 , i will be using most of the standard loom that was cut out of a 1989 405 at the same time the engine was removed , i have been through all the individual wires and noted down the numbers and by cross referencing the wiring diagrams in the Haynes manual i have found out what most of the wires are for . There is a resistor on a 2 way brown plug that i am not sure about , the numbers are 67 and 67A and i cannot find them anywhere on the diagrams , usually this resistor is for the radiator fan or the headlamp dim/dip , my one has the rubber protective boot different to what i have seen before . Any ideas as i will be removing all unused wires while sorting the loom out .