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U1000 2009 Nissan Versa Code - CAN Communication Line Signal Malfunction

- Code Popularity: 9,298 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U1000 2009 Nissan Versa?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Controller Area Network (CAN) communication harness is open or shorted
  • Faulty Engine Control Module (ECM)
  • Poor harness ground connection.
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How to Fix the DTC U1000 2009 Nissan Versa?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

There is a service bulletin for the 2009 Nissan Versa:
2009 Nissan Versa Factory Service Bulletin OBDII Code U1000

Usually, the problem is poor harness ground connection. The service bulletin suggests cleaning engine and body harness ground connection to repair the problem. Loosen the ground connectors clean them with sandpaper on the connector side and body side and retighten the bolts back.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1000 2009 Nissan Versa code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code U1000 2009 Nissan Versa Description

The Controller Area Network (CAN) is a standard bus system in vehicles that enables the connection of automotive devices without the need for a host computer. The exchange of operating information and commands among devices is facilitated by pre-programmed information about the required message exchange on the serial data circuits. Communication is carried out using two dedicated wires, known as CAN high and CAN low, with both lines carrying 2.5V when the CAN bus is in idle mode. During the transmission of data bits, the CAN high line increases to 3.75V while the CAN low drops to 1.25V, creating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when the Engine Control Module (ECM) is not transmitting or receiving CAN communication signals for 2 seconds or more.

OBDII Code U1000 2009 Nissan Versa - CAN Communication Line Signal Malfunction - AutoCodes.com
U1000 2009 Nissan Versa Code - CAN Communication Line Signal Malfunction

Need More Information on the Code?

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Code U1000 2009 Nissan Versa comments

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