AutoCodes - Gmc - U2100 GMC

U2100 GMC Code - CAN Bus Communication

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U2100 GMC code possible causes

  • Faulty Module/Device that is not communicating
  • Module harness is open or shorted
  • Module circuit poor electrical connection

|How do I fix the U2100 GMC 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.

|Cost of diagnosing the U2100 GMC code

Labor: 1.0

The cost of diagnosing the U2100 GMC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are U2100 GMC code possible symptoms?

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

|U2100 GMC code description

The serial data circuits are used to communicate information between the devices. The serial data circuits also connect directly to the Data Link Connector (DLC). The Diagnostic Trouble Code (DTC) will set when the device setting the DTC has attempted to establish communications on the serial data circuits more than 3 times in 5 s.
OBDII Code U2100 Gmc - CAN Bus Communication -

|Need more information with the U2100 GMC code?

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|Need help with a U2100 GMC code?

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|U2100 GMC code comments

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Repair Importance Level: 3
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