Lishoy
you say 'i had checked the Battery , its perfectly OK , and I get 74 Volts'...
can i assume this truck is an 80v truck? or is it 72v?
All the specs i come across for this model state an 80v system.
If this is the case your battery is not ok, it is discharged or has bad cells and could very well be the cause of your errors.
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