How do you test 7.3 powerstroke idm?

To test the IDM (Injector Driver Module) on a 7.3 Powerstroke, first, ensure the vehicle is off and disconnect the IDM connector. Use a multimeter to check the voltage at the IDM connector while turning the ignition on; you should see battery voltage. Next, check the continuity of the wiring from the IDM to the injectors to ensure there are no breaks. Finally, you can perform a resistance test on the injectors themselves to confirm they are functioning properly.