Yes

The circuit for starter is bat > ignition sw > Gear selector sw > alarm interlock relay.. Any part/break in that series chain and the starter circuit is inactive.
That is why we talked about the gear selector being in N . That is a common fault for your condition, along with the interlock relay and the fuse that feeds the relay.
Each part has to be traced and checked via the wiring diagram.
Anyone have a 129 schematic?????????????