AutoCodes – GMC – U2113 GMC

U2113 GMC Code - Lost Communication With Sensing And Diagnostic Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Sensing and Diagnostic Module (SDM), Sensing And Diagnostic Module harness is open or shorted, Sensing And Diagnostic Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U2113 GMC indicates Lost Communication With Sensing And Diagnostic Module.
Common causes: Common causes include Faulty Sensing and Diagnostic Module (SDM), Sensing And Diagnostic Module harness is open or shorted, Sensing And Diagnostic Module circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 727

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2113 GMC Description

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. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2113 GMC - Lost Communication With Sensing And Diagnostic Module - AutoCodes.com — U2113 GMC Code - Lost Communication With Sensing And Diagnostic Module

What does this mean?

What are the Possible Causes of the DTC U2113 GMC?

Faulty Sensing and Diagnostic Module (SDM)
Sensing And Diagnostic Module harness is open or shorted
Sensing And Diagnostic Module circuit poor electrical connection

How to Fix the DTC U2113 GMC?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U2113 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the U2113 GMC code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U2113 GMC Code

1. What are the common symptoms of OBDII code U2113 in a GMC vehicle?

- Common symptoms include the check engine light being illuminated, loss of communication with the sensing and diagnostic module, and potential issues with the vehicle's ABS or traction control systems.

2. What could be causing the OBDII code U2113 in my GMC?

- The code U2113 typically indicates a communication failure between the vehicle's control modules, which could be caused by a bad connection, damaged wiring, or a malfunctioning sensing and diagnostic module.

3. How can I diagnose the OBDII code U2113 in my GMC?

- Diagnosis involves checking the wiring connections related to the sensing and diagnostic module, inspecting for any physical damage, and using a diagnostic scanner to communicate with the affected module.

4. Is it safe to continue driving with the U2113 code present in my GMC?

- It is not recommended to drive with the U2113 code present, as it can lead to potential safety issues due to the loss of communication with critical vehicle systems.

5. Can I reset the U2113 code in my GMC without fixing the underlying issue?

- While you can clear the code temporarily, it will likely reappear until the underlying communication issue between modules is resolved.

6. How much does it typically cost to repair the U2113 code in a GMC?

- The cost of repair can vary depending on the specific cause of the communication failure, but it may involve repairing or replacing wiring, connectors, or the sensing and diagnostic module itself.

7. Can a DIY enthusiast fix the U2113 code in a GMC?

- DIY enthusiasts with experience in automotive electrical systems may be able to diagnose and repair the U2113 code, but it is recommended to consult a professional if unsure.

8. Will the U2113 code affect the overall performance of my GMC vehicle?

- The U2113 code itself may not affect the vehicle's performance directly, but it can lead to issues with ABS, traction control, or other safety systems that rely on proper communication between modules.

9. How long does it take to repair the U2113 code in a GMC?

- The repair time can vary depending on the cause of the communication failure and the extent of the repair needed, but it may take a few hours to a full day in some cases.

10. Are there any preventive measures to avoid the U2113 code in a GMC?

- Regularly inspecting and maintaining the vehicle's wiring harnesses, connectors, and control modules can help prevent communication failures that trigger the U2113 code.