Engine-Codes - Infiniti - U1001 INFINITI

U1001 INFINITI - Invalid or Missing Data for Primary Id

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

U1001 INFINITI Possible Causes

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

How is the U1001 INFINITI code repair?

Start by checking 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.

What is the cost to diagnose the U1001 INFINITI code

Labor: 1.0

The cost to diagnose the U1001 INFINITI code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms

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

U1001 INFINITI Meaning

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.

More Information

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