Apple Macbook Pro A2338 EMC8162 lid sensor doesn't work

[veedo]

I have an Macbook Pro A2338 after small liquid damage, all working fine but keyboard was sticky so I have replaced palmrest for genuine second hand and now lid sensor doesn't recognize when I'm closing the lid. Display is always on, can't find sensor for that model, can someone explain my how does it work, where that flex is if there is any.

Maybe that the motherboard issue, not sure where to start.

Thank You

[mon2]

Review the voltage to ground of IPD_LID_OPEN_1V8 (@ RR304) - generated by UR300.

The actual lid sensor mates with connector JR900

and (LEFT sensor) mates with connector JR200.

Clamshell Open = High
Clamshell Closed = Low

[veedo]

Thank you for your help, issue has been sorted, flex of the connector JR900 was lifted little bit in the part where its ends under the speaker so I had just to align it back to his please and its started working fine.

Thank You.

[mon2]

Well done. The updates are always appreciated. Many techs enter the witness protection program without closure for the readers.