CAN Communication Bus – Signal Malfunction


Table of contents

U1010 NISSAN Possible Causes

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

How do I fix code U1010 NISSAN?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Tech Notes

  • Usually, the problem is poor harness ground connection.
  • There is a service bulletin for the following Nissan models with U1010 code:
  • 2006 Nissan Maxima
  • 2006 Nissan Titan
  • 2006 Nissan Armada
  • 2006 Nissan Sentra
  • 2006 Nissan Frontier
  • 2006 Nissan Altima
  • 2006 Nissan Xterra
  • 2006 Nissan Pathfinder
  • 2006 Nissan Quest
  • 2006 Nissan 350Z
  • 2006 Nissan Murano
  • Nissan Factory Service Bulletin OBDII Code U1010

Cost of diagnosing the U1010 NISSAN code

  The cost of diagnosing the U1010 NISSAN code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

U1010 NISSAN Description

  The Controller Area Network (CAN) is a serial communication line for real-time applications. 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 the required data only.
The Diagnostic Trouble Code (DTC) sets when detecting errors during the initial diagnosis of CAN controller of the Engine Control Module (ECM).

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