AutoCodes - Chevrolet - U0401 CHEVROLET

U0401 CHEVROLET Code - Invalid Data Received From Engine Control Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U0401 CHEVROLET code possible causes

  • Faulty Engine Control Module (ECM)
  • Engine Control Module harness is open or shorted
  • Engine Control Module circuit poor electrical connection

|How do I fix the U0401 CHEVROLET 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 connector's pins.

|Cost of diagnosing the U0401 CHEVROLET code

Labor: 1.0

The cost of diagnosing the U0401 CHEVROLET 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.

|What are U0401 CHEVROLET code possible symptoms?

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

|U0401 CHEVROLET code description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Engine Control Module (ECM) causing its integrity to be questioned.
OBDII Code U0401 Chevrolet - Invalid Data Received From Engine Control Module -

|Need more information with the U0401 CHEVROLET code?

Need more information on how to fix the U0401 CHEVROLET code? Get Access to Factory Service Manuals

|Need help with a U0401 CHEVROLET code?

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|U0401 CHEVROLET code comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U0401 Chevrolet code? Have you replaced any parts?
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