MacBook Pro A2251 20V on USB-C, 0.00-0.01A current draw repair

Problem description
Dealing with a MacBook (820-01949) showing 20V on USB-C with a current draw of 0.00-0.01A.

Symptoms

 * MacBook displaying 20V on USB-C ammeter
 * Current draw registering 0.00-0.01A

Check PMU (U7800) Input

 * Verify if PMU U7800 (Figure 1) is missing 12V input (PMU_VDD_HI) caused by R8050 (Figure 2) being blown or corroded.
 * Check resistance on R8050; normal value should be around 877kΩ.
 * Note: R8050 is part of a voltage divider circuit, so voltage will be lower on pin 2 of the resistor.

Blown R8050 with Short to Ground

 * If R8050 is blown and there's a short to ground on pin 2, replace both U7800 and R8050.

Blown R8050 without Short to Ground

 * If R8050 is blown but no short to ground is found, replace R8050.