Engine-Codes - Gmc - U2520 GMC

U2520 GMC - Invalid Data Received From Active Safety Control Module 1 On High Speed CAN B

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

U2520 GMC Possible Causes

  • Reprogram Active Safety Control Module 1
  • Faulty Active Safety Control Module 1
  • Active Safety Control Module 1 harness is open or shorted
  • Active Safety Control Module 1 circuit poor electrical connection

How is the U2520 GMC 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 U2520 GMC code

Labor: 1.0

The cost to diagnose the U2520 GMC 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)

U2520 GMC Meaning

Some devices are constantly receiving information from other devices through serial data communication network. The invalid data code will be set when a receiving device detects a discrepancy in the information it receives from another device causing its integrity to be questioned. The symptom byte listed in the Diagnostic Trouble Code (DTC) Descriptor is for engineering reference only. No external circuit diagnosis is involved. The DTC will set if the Active Safety Control Module 1 is not configured properly.

More Information

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