Going backwards..

From the starter the blu/yel wire goes to a junction
From the junction, if an automatic a blu wire goes to the neutral safety switch at the shifter and from there a blu wire returns to the junction. (If a standard, blu wire comes out of junction and loops back into it.)
From the junction a pink wire goes to the ignition switch and another pink wire to a service socket for the starter motor and from there a blu/yel wire to the control unit of the LH Jetronic 2.4

(Obtained from Haynes manual pg. 12-29)
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1980 245 Canadian B21A with SU carb but electronic ignition and M46 trans in Brampton, Ont.