AutoCodes – Chevrolet – U2144 Chevrolet

U2144 Chevrolet Code - Lost Communication With Distance Sensing Cruise Control Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Distance Sensing Cruise Control Module, Distance Sensing Cruise Control Module harness is open or shorted, Distance Sensing Cruise Control 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: U2144 Chevrolet indicates Lost Communication With Distance Sensing Cruise Control Module.
Common causes: Common causes include Faulty Distance Sensing Cruise Control Module, Distance Sensing Cruise Control Module harness is open or shorted, Distance Sensing Cruise Control 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 712

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 U2144 Chevrolet 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 U2144 Chevrolet - Lost Communication With Distance Sensing Cruise Control Module - AutoCodes.com — U2144 Chevrolet Code - Lost Communication With Distance Sensing Cruise Control Module

What does this mean?

What are the Possible Causes of the DTC U2144 Chevrolet?

Faulty Distance Sensing Cruise Control Module
Distance Sensing Cruise Control Module harness is open or shorted
Distance Sensing Cruise Control Module circuit poor electrical connection

How to Fix the DTC U2144 Chevrolet?

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 U2144 Chevrolet 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.

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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 U2144 Chevrolet Code

1. What does the OBDII code U2144 mean on a Chevrolet?

U2144 indicates a loss of communication with the Distance Sensing Cruise Control Module (DSCCM), which may impact adaptive cruise control functionality.

2. What are the common symptoms of the U2144 code?

Symptoms can include the adaptive cruise control not working, dashboard warning lights (e.g., Check Engine or Service Adaptive Cruise Control), and possible deactivation of forward collision alerts.

3. What causes the U2144 code to appear?

Common causes include faulty or disconnected wiring, a malfunctioning Distance Sensing Cruise Control Module, software issues, or problems with the vehicle's communication network.

4. Can I still drive my Chevrolet with the U2144 code active?

Yes, you can drive the vehicle, but features like adaptive cruise control and forward collision warning may not function properly, which could affect safety.

5. How do I diagnose the U2144 code?

Diagnosis involves checking for loose or damaged wiring, testing the Distance Sensing Cruise Control Module, and using a scan tool to verify communication on the vehicle's CAN bus network.

6. Does the U2144 code always mean the module is faulty?

No, the issue could also stem from corroded connectors, wiring issues, or a software glitch rather than a defective module.

7. How can I fix the U2144 code?

Repairs may include reconnecting or replacing damaged wiring, cleaning or replacing corroded connectors, reprogramming the module, or replacing the DSCCM if necessary.

8. Is the U2144 code covered under warranty for Chevrolet vehicles?

This depends on your vehicleâ€™s warranty terms. If the Distance Sensing Cruise Control Module is defective and the vehicle is under warranty, it may be covered.

9. Can a weak battery cause the U2144 code?

Yes, a weak or failing battery can disrupt communication between modules and potentially trigger the U2144 code.

10. Should I update my vehicle's software to fix the U2144 code?

In some cases, a software update from the dealer may resolve communication issues associated with the U2144 code. Check with a Chevrolet service center.