Also, I hate to see people go through a problem, go through all kinds of sourcing parts- only to find out that's not the problem.
A known issue I have seen is the lighting breakout board, the traces are thin and since it is a one sided PCB, pressure on the connectors can crack or rip a trace- especially these ditch lights.
Again, what can happen is, those plug in socket connectors on this breakout PCB are flexed or otherwise stressed. The tiny traces and the glue holding them to the PCB substrate then rips or cracks and no longer is the connector actually connected back to the PS3 PCB wiring.
I've had to jumper wire or repair the contacts on this breakout PCB, and then use superglue to lock the connector sockets and pins to the PCB as strain relief.
Not sure if you tested the suspected failed LED with an LED tester or my favorite trick, a CR2032 coin cell.
The beauty of using the coin cell is, it self limits the LED current- no resistor required.