T/S 320L, no start/shutdown, control panel inop, checked wiring, doesn't appear to have any issues, suspect the ECU. I ran a wire from the starter relay and when applied to ground the engine starts, but won't shut down, have to manually pull the shutdown. Also the control panel doesn't turn on, warning buzzer won't work, checked key switch, it appears OK. Speed control when turned up, does 3 stage idle down, when turned down it does a 3 stage up idle. I applied ground to the ECU connector for the fuel shut off relay (not the ecu itself, just the unhooked connector) and it operated normally, I think. I had both ECU connectors off and engine started and ran. Horn doesn't work. Just curious if this could be a bad ECU or?
Cat 320L wiring SNAFU
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