AutoCodes - Gmc - U240B GMC

U240B GMC Code - Radio Dedicated Bus Off

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

|U240B GMC code possible causes

  • Faulty Radio
  • Radio harness is open or shorted
  • Radio circuit poor electrical connection

|How do I fix the U240B GMC 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 U240B GMC code

Labor: 1.0

The cost of diagnosing the U240B 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.

|What are U240B GMC code possible symptoms?

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

|U240B GMC code description

The high-speed General Motors Local Area Network (GMLAN) serial data circuits are serial data buses used to communicate information between the devices. The high-speed GMLAN serial data circuits also connect directly to the X84 Data Link Connector (DLC) for programming purposes. If this serial data system is inoperative, some devices may still be able to communicate with the scan tool due to other serial data systems but not with each other. The device setting the Diagnostic Trouble Code (DTC) has attempted to establish communications on the high-speed GMLAN serial data circuits more than 3 times.
OBDII Code U240b Gmc - Radio Dedicated Bus Off -

|Need more information with the U240B GMC code?

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|Need help with a U240B GMC code?

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|U240B GMC code comments

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