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fjo wideband controller wiring fix

Old 04-24-2007, 06:03 PM
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Default fjo wideband controller wiring fix

Got my FJO wideband all hooked up and looking good last night for some reason I couldn't get the computer to talk to the controller. Thought it was the serial to usb converter so I picked up another laptop at work today that has a serial port and still no love. I didn't see any kind of communication using hyperterm. I expected to at least see some junk data if the wiring wasn't sound.

Turned out FJO's rather spartan manual had the wiring backwards (at least for my controller). The manual says the red wire on the serial cable connects to the the white/green wire on the controller and the brown wire on the serial cable connects the the white/red wire on the controller. It's actually backwards. Maybe I just got a goofy one from the factory.

Anyway, if anyone is beating their heads against the wall on this, try flipping the wires and give it a try!


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