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U0122 Toyota Code - Lost Communication with Vehicle Dynamics Control Module

- Code Popularity: 7,056 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U0122 Toyota?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Skid Control ECU (Brake Actuator Assembly)
  • Skid Control ECU harness is open or shorted
  • Skid Control ECU circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
⚠ Does your Toyota have Safety Recalls? → Check here

How to Fix the DTC U0122 Toyota?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

When there are problems with the way different systems in a vehicle communicate with each other using a technology called Controller Area Network (CAN) communication, Diagnostic Trouble Codes (DTC) are displayed. These codes can be caused by issues with the main bus or branch of the communication network, or with the Electronic Control Units (ECUs) and sensors that make up the different systems. If you see code for both the CAN communication problems and internal or power source problems at the same time, you should focus on fixing the internal or power source problems first.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0122 Toyota code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code U0122 Toyota Description

The Engine Control Module (ECM) and Driving Support ECU Assembly to communicate signals with each sensor and ECU via Controller Area Network (CAN) communication. If there are any malfunctions in the communication circuit, one or more CAN communication system Diagnostic Trouble Codes (DTC) are output.

OBDII Code U0122 Toyota - Lost Communication with Vehicle Dynamics Control Module - AutoCodes.com
U0122 Toyota Code - Lost Communication with Vehicle Dynamics Control Module

Need More Information on the Code?

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Code U0122 Toyota comments

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