Find the contactor that went "clack" and determine if it is being driven to "clack" or not. If not then scratch your head, if being driven then go about finding a replacement contactor.Thanks Grumpy, but when I turn the mower on, it draws .055 Amp, but will do nothing more. Usually a contactor goes clack, but I get nothing. Dosen't look like a battery problem, it's a problem detected by the CANBUS system. Anybody know how to troubleshoot that?