What do you want for it? It will run the car though. I have a 420 in the shop that we ran off a 560 controller but we won't leave it as there will be some functions that are different. If you are just trying to see if the controller is the cause of some symptom. You might use it for evaluation.

The controllers are almost never the problem but we had one last week with no output, substituting the 560 one verified the controller as the problem as we then got EHA output back and had fuel control.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician