U1001 NISSAN - Invalid or Missing Data for Primary Id

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

U1001 NISSAN Possible Causes

  • Harness or connectors (CAN communication line is open or shorted)
  • ECM

First diagnose U1001 NISSAN code

    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 terminals.

U1001 NISSAN Tech Notes

Nissan has release service bulletins for this problem. A common cause with Nissan vehicles is the poor harness ground connection at the engine compartment and the ground connection behind the dash. Clean and resecure harness ground connection and reset engine light.

Cost of diagnosing the U1001 NISSAN code

    Labor: 1.0

    The cost of diagnosing the U1001 NISSAN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the U1001 NISSAN code detected?

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

U1001 NISSAN Possible Symptoms

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

U1001 NISSAN Meaning

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 U1001 NISSAN - Invalid or Missing Data for Primary Id - Engine-Codes.com

U1001 NISSAN More Information

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