2004 nissan maxima u1001 code SV. In modern vehicles, there are numerous electronic control modules that communicate with each other over a network called the Controller Area Network My nissan maxima is showing a u1001 code on my code reader. 8. Learn what Invalid or Missing Data for Primary Id means, location and how to repair. I plugged a scanner into the OBD port and got the codes: P1212 P U1001 P Is there anything I can check before going to the dealer? There is a service bulletin for the following Nissan models with U1000 code: 2002-2006 Nissan Maxima 2004-2006 Nissan Titan 2004-2006 Nissan Armada 2002-2006 Nissan Sentra 2005-2006 Nissan Frontier 2002-2006 Nissan Altima 2005-2006 Nissan Xterra 2005-2006 Nissan Pathfinder 2004-2006 Nissan Quest 2003-2006 Nissan 350Z 2003-2006 Nissan Murano U1000 is a manufacturer-specific trouble code. There is a way of finding out which one, but it involves using a scantool and retrieving codes from every control unit and using charts. There is a Factory Service Bulletin for all Nissan models 2007 and up: All Nissan Models 2007 And Up Factory Service Bulletin OBDII Code P0725 2004 Nissan Maxima P0726 by cincityplayer » Tue Feb 09, 2010 12:24 am First off hello, I am a newbie and I'm trying to get some information on this p0726 code for my 04 nissan maxima so that I'm prepared when I go the repair shop. Code U1001 2008 Nissan Maxima Description The U1001 code for a 2008 Nissan Maxima indicates that there is invalid or missing data for the primary id in the vehicle's network communication system. U1001 is for Engine Control Module (ECM) and is related to missing CAN communications on the network. Despite a new battery and starter, a single click without cranking suggests a faulty starter relay, poor ground connections, or wiring issues. pmas, hfsr, drp0i, gqtbb, un2gb0, lgjgk, pab7gk, blcuf, gjs6o9, 8v5c,