Need help with diagnosing macbook 820-00138-A

[survivalbloke]

Macbook Pro A1398 EMC2909 SN: C02VW1C9G8WN

He said he spilled water on the kb, and now won't power up. When connected to the bench, it's taking 313ma. Pressing the power button reduces that to 310ma.

I found some water damage corrosion(very light) and cleaned it off. That did not fix the issue and I did not find any other visual problems.

I do get a green/amber light on the power adapter.

Where do I go next with this?

[ACS-Repair]

Re: Need help with diagnosing macbook 820-00138-A

Have you ruled out a bad keyboard?
I've bought a couple of MacBooks that would not power on with the power switch but found they would power on if I disconnected the battery and connected the MagSafe. This confirmed the keyboard was the issue.