2008 Nissan Altima with P1000, P1001 DTC codes 

Cleaning terminals cleared my u1000 code on 04 murano ... thanks

This makes sense, corrosion after an airport stay. We just had 2 days of rain and my wife's car (Nissan sentra) threw the code. No running problems though. I will attempt this fix if/ when it pops up again.

don't forget the other end of the negative cable thats connected to the body or transmission. mine was under the bracket that holds the battery. After I removed the plate, the battery sits on it was connected to a bracket that sits on top of the transmission. this part of the negative cable was caked with corrosion. funny thing is you can't see this without tracing the negative cable from the battery to the frame of the car aka the other end of the negative cable. if you keep getting U1000 codes it will be the ECU or ECM it same thing. The car's computer is going bad.

Nice

Cant just put another ecu the key will have to be reprogrammed to it .

Fuck me, 3:30 in and you still can't tell us how yo fix it.