Voltage and current measurements of components that exhibit dynamic resistance will not jive with calculated values if we insert the component’s OFF resistance into the Ohm’s Law equation.
All late model Subaru four cylinder engines employ a “waste spark” ignition system. Testing methods for this type of coil are slightly different from what you might be accustomed to.
All automobiles (including Subaru vehicles) are filled with dozens of multi-terminal connectors. They can be the source of intermittent and/or hard to diagnose electrical problems.