Let me start with what I have and how my layout is connected then I will share my problem. I have a Z4000 plugged into TIU revL fixed and variable connected together on the input variable on the out. My layout a double loop with a double crossover all Realtrax. My switches are plugged into the AIU and power I guess is supplied by track. I have a DD40AX in PS1 and a SD40 in PS2. Everything runs in PS1 mode but the SD40 will not run in PS2. The locomotive is in the remote but again will not run in PS2. Every time I try to use a mode for it I get Check Track. Track is clean. Any help would be greatly appreciated.
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