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U1000 2002 Nissan Sentra Code - CAN Communication Line - Signal Malfunction

- Code Popularity: 6,201 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By AutoCodes.com - Updated Jul 01, 2020
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|Code U1000 2002 Nissan Sentra 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 the Code U1000 2002 Nissan Sentra?

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.

Does your Nissan have Safety Recalls? → Check here

|Code U1000 2002 Nissan Sentra Tech Notes

There is a service bulletin for the 2002 Nissan Sentra:
2002 Nissan Sentra 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.

|What is the Cost to Diagnose the Code U1000 2002 Nissan Sentra?

Labor: 1.0

The cost of diagnosing the U1000 2002 Nissan Sentra 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.

|What are Code U1000 2002 Nissan Sentra Possible Symptoms?

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

|Code U1000 2002 Nissan Sentra 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 the Engine Control Module (ECM) is not transmitting or receiving CAN communication signals of OBD (emission-related diagnosis) for 2 seconds or more.

OBDII Code U1000 2002 Nissan Sentra - CAN Communication Line - Signal Malfunction - AutoCodes.com
U1000 2002 Nissan Sentra Code - CAN Communication Line - Signal Malfunction

|Need More Information on the U1000 2002 Nissan Sentra Code?

Need more information on how to fix the U1000 2002 Nissan Sentra code? Get Access to Factory Service Manuals

|Need Help with the U1000 2002 Nissan Sentra Code?

Get the U1000 2002 Nissan Sentra code diagnosed by a professional: Find a repair shop in your area

|Code U1000 2002 Nissan Sentra comments

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