Engine-Codes - Generic - U18CB

U18CB Code - Lost Communication With Active Safety Control Module 2 On Flexray Bus

- Code Popularity: 840 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC U18CB?

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 Active Safety Control Module 2
  • Active Safety Control Module 2 harness is open or shorted
  • Active Safety Control Module 2 circuit poor electrical connection
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC U18CB?

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 pins.

Search for U18CB Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the U18CB code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the U18CB Code Mean?

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. The Diagnostic Trouble Code (DTC) will set a supervised periodic message that includes the transmitter device availability that has not been received.

U18CB Code - Lost Communication With Active Safety Control Module 2 On Flexray Bus

Need more Information on the Code?

Need more information on how to fix the U18CB code? Get Access to Factory Service Manuals

Code U18CB Information for Specific Makes

  • U18CB Buick Lost Communication With Active Safety Control Module 2 On Flexray Bus
  • U18CB Cadillac Lost Communication With Active Safety Control Module 2 On Flexray Bus
  • U18CB Chevrolet Lost Communication With Active Safety Control Module 2 On Flexray Bus
  • U18CB GMC Lost Communication With Active Safety Control Module 2 On Flexray Bus

Need Help with the Code?

Get the U18CB code diagnosed by a professional: Find a repair shop in your area