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U1111 CHEVROLET Code - Lost Communication With Chime Module

- Code Popularity: 380 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Apr 24, 2020
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|U1111 CHEVROLET code possible causes

  • Faulty Chime Module
  • Chime Module harness is open or shorted
  • Chime Module circuit poor electrical connection

|How do I fix code U1111 CHEVROLET 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.

Does your car have Safety Recalls? → Check here

|Cost of diagnosing U1111 CHEVROLET code

Labor: 1.0

The cost of diagnosing the U1111 CHEVROLET 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 U1111 CHEVROLET code possible symptoms?

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

|U1111 CHEVROLET code description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for the state of health monitoring/node alive messages. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. Once an identification number is learned by a module, it will monitor for that module node alive message. Each module on the class 2 serial data circuit is required to send a Node Alive message every 2 seconds. When no message is detected from a learned identification number for 5 seconds, a Diagnostic Trouble Code (DTC) U1111 is set.

OBDII Code u1111 chevrolet - Lost Communication With Chime Module - AutoCodes.com
U1111 CHEVROLET Code - Lost Communication With Chime Module

|Need more information with the U1111 CHEVROLET code?

Need more information on how to fix the U1111 CHEVROLET code? Get Access to Factory Service Manuals

|Need help with a U1111 CHEVROLET code?

Get the u1111 chevrolet code diagnosed by a professional: Find a repair shop in your area

|U1111 CHEVROLET code comments

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