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U2122 Buick Code - Lost Communication With Radio Unit

- Code Popularity: 255 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By AutoCodes.com - Updated Jun 16, 2020
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|Code U2122 Buick Possible Causes

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

|How do I Fix the Code U2122 Buick?

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.

Does your Buick have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code U2122 Buick?

Labor: 1.0

The cost of diagnosing the U2122 Buick code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code U2122 Buick Possible Symptoms?

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

|Code U2122 Buick Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2122 Buick - Lost Communication With Radio Unit - AutoCodes.com
U2122 Buick Code - Lost Communication With Radio Unit

|Need More Information on the U2122 Buick Code?

Need more information on how to fix the U2122 Buick code? Get Access to Factory Service Manuals

|Need Help with the U2122 Buick Code?

Get the U2122 Buick code diagnosed by a professional: Find a repair shop in your area

|Code U2122 Buick comments

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