Canopy Lock Switch installation quesion

I purchased the canopy lock switch kit from Vans. Instructions say attach the jumper wire included to pin 12 slot on one D Sub and pin 27 slot on the other D sub. There were were wires already in both those slots. Checking continuity between the two...no continuity.

Next ran the switch wire to pin 8 on fuselage D sub and completed installation.

I have the conversion harnesses and Skyview. Everything on the plane functions properly. Why do the instruction say insert a jumper into slots where wires already exist if there is no continuity between these two pins.

Its Sunday. Can call Vans Monday, but really want to get it put back together today. Any suggestions?

Van's schematic shows a 16-inch-long wire from the 50-Pin EFIS D-Sub position 27 on the AV-50000A control board to the SV-EMS-220 37-Pin D-Sub position 12. If that wire is not installed, then that is what the jumper is for.
If you did not measure continuity between those two locations, then you were either checking the wrong pins or else the above mentioned wire is missing.

Jack ?
the end result needs to be such that when the canopy switch is closed, a ground is presented to pin 12 of the DB-37 pin connector that plugs into the Engine Monitor Module.
In later instillations without the conversion harnesses, that is accomplished by routing the wire from the micro-switch to pin 8 of the Fuselage connector. The AV-50000A module interconnects that to pin 27 of the EFIS connector on the AV-50000A module. The connector that plugs into the EFIS port on the AV-50000 routes the canopy latch micro switch signal to pin 12 of the 37 pin EMS connector on the Engine Monitor Module.

So you should be able to close the canopy micro-switch and see the ground appear on pin 12 of the 37 pin EMS connector. If this is not the case, consider the following:
Since you mentioned having the conversion harness, you could just bypass the AV-5000A module altogether and consider running the wire coming from the micro-switch directly to pin 12 of the 37 pin EMS connector and not bothering with connecting it to the fuselage connector and then making sure that pin 27 of the EFIS connector is wired to pin 12 of the EMS connector. Just route it to where the ground needs to be seen and be done with it ? not forgetting to mark your drawings and prints accordingly for future reference.