MacBook Pro A1989 Not turning on, short on PPBUS G3H repair

Problem description
Repair of a common short on PPBUS_G3H on an A1990 MacBook Pro

Symptoms

 * MacBook not turning on.
 * Less than 10 Ohms on PPBUS_G3H as measured with a multimeter (short)
 * Very low current draw from the charging port at 5V

Short on PPBUS_G3H
Inject 1V (increase if no reaction), watch for hot spots with thermal cam. Usually it's a bad tantalum cap

Measure PPBUS_G3H to vCORE coils (coils around CPU/GPU) IF those measure UNDER 1Ohm (0.3-0.8) then you most likely have a direct 12V short to CPU/GPU. On this board this situation is always a no fix.