Engine-Codes - Generic - U2500

U2500 - Controller Area Network Lack Of Acknowldgement From Engine Management

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

U2500 Possible Causes

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

How is the U2500 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 U2500 code

Labor: 1.0

The cost to diagnose the U2500 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.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

Possible Symptoms

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

U2500 Meaning

The Diagnostic Trouble Code (DTC) will set when the Controller Area Network (CAN) detects a lack of acknowledgment from engine management.

More Information

Need more information on how to fix the U2500 code?
Get Access to Factory Service Manuals

Need more help?

Get the U2500 code diagnosed by a professional: Find a repair shop in your area