76 dart sport fuseible links

Yes. Good question.

As far as continuity and shunt measurements.
Cluster is on the bench, harnesses in the car?

Check for continuity between R16 and A11 at the cluster connector.
If open or high resistance move to the bulthead connector under the dash.
Check by back probing.
if open or high resistance, remove the connectors on the engine side. Rinse repeat.

if open or high resistance, check against other wires connecting to the same junction.
narrow down the location before resorting to unravelling harness tape or poking holes in rubber seals.