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U1000 NISSAN

U1000 NISSAN - CAN Communication Line - Signal Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?
     
  |  Add Comment

Possible causes

  • Controller Area Network (CAN) communication harness is open or shorted
  • Faulty Engine Control Module (ECM)
  • Poor harness ground connection.
  What does this mean?

Tech notes

Usually the problem is poor harness ground connection.

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
Nissan Factory Service Bulletin Code U1000

The service bulletin suggests cleaning engine and body harness ground connection to repair problem.
  What does this mean?

When is the code detected?

When ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis) for 2 seconds or more.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U1000 NISSAN Description

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

OBDII Code U1000 Nissan - CAN Communication Line - Signal Malfunction - AutoCodes.com

U1000 NISSAN Information for specific Nissan models

U1000 2002 NISSAN ALTIMA SEDAN
U1000 2003 NISSAN ALTIMA SEDAN
U1000 2004 NISSAN ALTIMA SEDAN
U1000 2005 NISSAN ALTIMA SEDAN
U1000 2006 NISSAN ALTIMA SEDAN
U1000 2008 NISSAN ALTIMA SEDAN
U1000 2004 NISSAN MAXIMA
U1000 2005 NISSAN MAXIMA
U1000 2006 NISSAN MAXIMA
U1000 2007 NISSAN MAXIMA
U1000 2008 NISSAN MAXIMA
U1000 2005 NISSAN PATHFINDER
U1000 2006 NISSAN PATHFINDER
U1000 2007 NISSAN PATHFINDER
U1000 2008 NISSAN PATHFINDER
U1000 2009 NISSAN PATHFINDER
U1000 2010 NISSAN PATHFINDER
U1000 2011 NISSAN PATHFINDER
U1000 2012 NISSAN PATHFINDER
U1000 2008 NISSAN ROGUE
U1000 2009 NISSAN ROGUE
U1000 2002 NISSAN SENTRA
U1000 2003 NISSAN SENTRA
U1000 2004 NISSAN SENTRA
U1000 2005 NISSAN SENTRA
U1000 2006 NISSAN SENTRA
U1000 2007 NISSAN SENTRA
U1000 2008 NISSAN SENTRA
U1000 2009 NISSAN SENTRA
U1000 2007 NISSAN VERSA
U1000 2008 NISSAN VERSA
U1000 2009 NISSAN VERSA

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U1000 NISSAN Comments

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Repair Importance Level: 3
 
1=Low 2=Medium 3=High  
Repair Difficulty Level: 3
 
1=Easy 2=Moderate 3=Hard  
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Posted and Edit by AutoCodes.com 12-18-2015