AutoCodes – Generic – U2144

U2144 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 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 5,929

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

What does this mean?

What are the Possible Causes of the DTC U2144?

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?

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 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 U2144 code?

Need more information on how to fix the U2144 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2144 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U2144 Buick — Lost Communication With Distance Sensing Cruise Control Module
U2144 Cadillac — Lost Communication With Distance Sensing Cruise Control Module
U2144 Chevrolet — Lost Communication With Distance Sensing Cruise Control Module
U2144 GMC — Lost Communication With Distance Sensing Cruise Control Module
U2144 Pontiac — Lost Communication With Distance Sensing Cruise Control Module

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 Code

1. What are the common symptoms of OBDII code U2144?

The common symptoms of code U2144 include the cruise control system not functioning properly, the distance sensing feature not working, and the cruise control light illuminating on the dashboard.

2. What can cause the OBDII code U2144 to appear?

The code U2144 typically appears when there is a communication failure between the vehicle's engine control module (ECM) and the distance sensing cruise control module. This can be due to wiring issues, a faulty module, or a software problem.

3. How can I diagnose the OBDII code U2144?

Diagnosing code U2144 requires using a professional OBDII scanner to retrieve the fault codes from the vehicle's computer. Additionally, a thorough inspection of the wiring and connections related to the distance sensing cruise control module is recommended.

4. Can I still drive my vehicle with the U2144 code present?

It is generally safe to drive the vehicle with the U2144 code present, as long as there are no other noticeable issues affecting the vehicle's performance. However, it is recommended to address the underlying problem as soon as possible.

5. How can I repair the U2144 code?

Repairing the U2144 code involves identifying the root cause of the communication failure between the ECM and the distance sensing cruise control module. This may involve repairing or replacing damaged wiring, addressing faulty components, or updating software as needed.

6. Is it possible to reset the U2144 code without repairs?

While clearing the code with an OBDII scanner may temporarily remove the warning light, the underlying issue causing the U2144 code will persist until repaired. It is recommended to address the problem rather than simply resetting the code.

7. Can a DIY enthusiast fix the U2144 code?

Depending on your skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the U2144 code. However, complex electrical issues may require professional assistance to ensure proper resolution.

8. How much does it cost to repair the U2144 code?

The cost of repairing the U2144 code can vary widely depending on the root cause of the issue, the extent of repairs needed, and whether any components require replacement. It is advisable to obtain quotes from automotive professionals for an accurate estimate.

9. Will the U2144 code cause my vehicle to fail an emissions test?

The U2144 code is related to cruise control communication and is unlikely to directly impact emissions. However, it is essential to address the underlying issue to ensure the vehicle's overall performance and functionality.

10. How can I prevent the U2144 code from reoccurring?

To prevent the U2144 code from reoccurring, it is crucial to address the root cause of the communication failure between the ECM and the distance sensing cruise control module. Regular maintenance checks and prompt repairs can help prevent this code from appearing again.