This is Lionel 6-34531 which is a Legacy F7A dummy unit. When running an ABBA consist the headlight is constantly on regardless of the direction. Good possibility I got the connectors bass akwards after a recently tearing it down for a smoke unit adjustment. Is the backup light supposed to be non-directional (constant on)? Currently the headlight is constant on and the backup light is directional. The answer to this question will verify if I got the connections crisscrossed.
Thanks...Rich