First of all error code 68 is comming adjusted the battery voltage and the error code turned to 65 and we had done the procedure for the logic card initialization , but the error is not going. And we tried the same logic card on another(same series ) machine there its working properly. So we confirmed that logic card is good one , but the same logic card isn't functioning in the concerned machine. Is there any internal errors will be stored ? Battery is showing the full voltage , but during driving the battery drops to 76 volts ,is because of the bad battery , the logic card is not initializing ? Some times its showing error 40. What we want to do next ? Whenever error code 68 is comming we will adjust the battery volt and then error code 65 is comming , this is happening so far. mean while we came across error 40 also but its vanishing if we made reset the key switch.Please give us the technical support regarding this issue.