my gps gives me a wrong or error current location

[WPCentral Question]

I have a car GPS103AB I was using more than 3 month it was give me with sms a right current position now this days gives me error position like this
Lac:0029,0721
T:00/00/00 00:01
PWR:ON Door:OFF ACC:OFF

please help me to fix this problem

thanks
bini