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U0122

Overview

Code

U0122

Code Type

U

Code Class

U0

System

Network

Severity Level

Medium

Emissions Related

false

Drivability Impact

Minor

Diagnostic Protocol

OBD2

Freeze Frame Useful

false

Code Definition

Diagnostic trouble code U0122 indicates a loss of communication with the vehicle dynamics control module

Symptoms

Stability control warning light; Check Engine Light

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Stability and traction control systems

Possible Causes

Module communication fault; CAN bus issues

Diagnostic Steps

1 Inspect CAN network integrity; 2 Verify module power supply; 3 Scan for additional network codes; 4 Diagnose underlying CAN faults

Drive Safety Notes

Vehicle remains drivable without stability assist

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