Question about 2005 Nissan Maxima

2 Answers

Nissan maxima 05 service engine light is on and readout code is U1000 ? can u tell me what it is.

Posted by on


2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Expert
  • 60 Answers

That is an emisions code I believe

Posted on Oct 03, 2009

Testimonial: "that was fast service thanks.........:)"

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

The U1000 code means that the computer is loosing connection with the rest of the vehicle. I would check the connector at the computer and disconnect and reconnect it and see how that works.

Posted on Oct 04, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Service engine light on, has u1000 code. 2005 Nissan titan. Any solutions to the code?

This is a communication code. One or more computer modules are not communicating with the main computer. Reset the code and see if it returns. Often these codes are set due to a low battery condition. If the code returns it may be tricky to diagnose as it will most likely be an electrical/wiring issue

Apr 25, 2015 | 2005 Nissan Titan

1 Answer

Check engine light code u1000

well low battery volts is the most commen cause of network communication codes, but check all fuses too

Oct 13, 2014 | 2005 Nissan Maxima

1 Answer


U1000 - CAN Communication Line Signal Malfunction

- Harness or connectors (CAN communication line is open or shorted)
- Faulty Engine Control Module (ECM)

- 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

The service bulletin suggest cleaning engine and body harness ground connection to repair problem.

Feb 14, 2011 | Nissan Versa Cars & Trucks

1 Answer

Nissan maxima 05 service engine light is on. How do I check what the code is / are?

There are many emission sensors in the car that will make the engine light come ON. Not to mention the big list of trouble codes for the engine light.

Best way to find out what's going on engine light is to have an auto-parts store hook up a engine code reader and tell you what the code means and the problem. Most auto-part store will do this for free.

Nov 09, 2009 | 2005 Nissan Maxima

1 Answer

Service engine soon light is on I take it to Auto Zone the code was U1000 see car manuel could you tell me what the mean

U1000 = Loss of Communication with PCM

One missed communication code isn't normally something you should worry about. The modules in the system pass State of Health messages back and forth on a continual basis. Some times these messages are missed due to electrical noise or other factors in the system. The next time the message is sent it may be received just fine but the previous code is not reset. If you see a lot of these codes then you need to start thinking of battery or data link problems.

Sep 19, 2009 | 2005 Nissan Sentra

1 Answer

U1000 Diagnostics check pop-up

U1000 is a CAN Communication fault code. it is a code that most nissans have that cannot be cleared. does not indicate a fault with any system. if that is the only code in the system then ignore it, does not affect the car

Jul 02, 2009 | 2005 Nissan Maxima

1 Answer

Hello, I bought my Maxima SE 2 weeks ago, the light of "service engine soon" turns on and some times the TCS and SLIP lights are turning on and off and whenever these lights come and go, the...

As for trouble codes, and the dealers recommendation. They are true and accurate, although I would get a second opinion from another auto shop other than the dealer. Do not disclose what you already know other than the problems you are expriencing.

Apr 27, 2009 | 2002 Nissan Maxima

Not finding what you are looking for?
2005 Nissan Maxima Logo

Related Topics:

972 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

76846 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides