how to bench test a 70 Dart instrument cluster?

str12-340 said
sounds like it would be better to just pull an card table up to the fender and use wires to the Pos and Neg battery posts to power and ground the unit on the table. One problem that I have is that the IVR cannot be removed from the cluster without removing the cluster from the dash, the damned thing is right in front of part of the column/brake mount structure.

You said "Bench Test" that sugests that the cluster is out.

I can tell you that removing the cluster is NOT for the faint of heart, I just got mine back in tonight. So if it is NOT out of the car you can still do all of the tests listed but will need to go about it a little differently.

You will need test leads like this to probe into the terminals and posts.

and the IVR CAN be removed from the cluster while it is in the car. I did it on the side of the road when mine failed.

If you are doing these tests PULL THE FRONT SEAT/ SEATS OUT. You will thank me!