Paul,
Error code 4 - communication - unable to establish communication with CD player
Error 5 - cd response - unable to obtain the correct response from the cd player.
If needed, I can send all the errors codes.
Good luck, Rob
—————————————————————————————— I have a customer with a CD8B that has two error codes mech error 04 and 05. what are these? The diagnostic button does nothing and the rotate button also does nothing.