Hi all
My game is going into test mode during game play. to be very clear on this the game is shutting down and flashing the playfield lights just as is if you pushed the self test button on the inside of the coin door. The obvious culprit would be a short on the coin door but no I started the and disconnected the harness to the coin door and it still went into fail mode. Or flash mode. I can reproduce this fail when I slap the right flipper a number times. I can slap the heck out of the game and it does not fail.

I cut the top wire of the lower right connector. just to be clear J3 The test button still works so this must be the wrong wire.

This is confusing my j3 connector is on the bottom right.you are talking about the upper left. I cut the wire on the bottom right J3 , the top wire

mpu pic (resized).jpg

So yes, I cut the wrong wire. Why? sometimes I can be a dumbass. I also forgot you can push in on the side of the connector to release the pin.
So here is the story, I did release the pin up top. It still went into fail mode. I bought new alltek mpu and solenoid boards for the unit. It fixed it but I swapped in each board separately and it failed in weird ways so both boards wear corrupt . Solved
Thank You all