Engine-Codes.com
Engine-Codes – Saturn – U2149 Saturn

U2149 Saturn Code - Lost Communication With Tire Pressure Monitor System

Quick Answer

The U2149 diagnostic trouble code (DTC) for Saturn vehicles indicates a communication issue with the Tire Pressure Monitor System (TPMS). Common causes include Faulty TPMS sensors, Wiring or connection issues between the TPMS sensors and the vehicle's computer, Electronic control module (ECM) malfunction. 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
U2149 Saturn indicates Lost Communication With Tire Pressure Monitor System.
Common causes
Common causes include Faulty TPMS sensors, Wiring or connection issues between the TPMS sensors and the vehicle's computer, Electronic control module (ECM) malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U2149 Saturn Description

The U2149 diagnostic trouble code (DTC) for Saturn vehicles indicates a communication issue with the Tire Pressure Monitor System (TPMS). This code is triggered when the vehicle's onboard computer system is unable to receive data from the TPMS sensors, which are responsible for monitoring tire pressure and alerting the driver of any abnormalities. The TPMS plays a crucial role in ensuring proper tire inflation, which is essential for vehicle handling, fuel efficiency, and overall safety. When communication with the TPMS is lost, the system may not be able to provide accurate tire pressure readings to the driver, potentially leading to unsafe driving conditions.

OBDII Code U2149 Saturn - Lost Communication With Tire Pressure Monitor System
U2149 Saturn Code - Lost Communication With Tire Pressure Monitor System

Common Causes of U2149 Saturn

  1. Faulty TPMS sensors
  2. Wiring or connection issues between the TPMS sensors and the vehicle's computer
  3. Electronic control module (ECM) malfunction
  4. Low battery voltage affecting TPMS sensor communication
  5. Interference from electronic devices or radio frequency interference

Symptoms of U2149 Saturn

  1. TPMS warning light illuminated on the dashboard
  2. Inaccurate or fluctuating tire pressure readings on the display
  3. Loss of tire pressure monitoring functionality
  4. Erratic or inconsistent tire pressure alerts

How to Fix U2149 Saturn

  1. Begin by checking the TPMS sensors and their batteries for proper functionality.
  2. Inspect the wiring and connections between the TPMS sensors and the ECM for any damage or corrosion.
  3. Reset the TPMS system by following the manufacturer's instructions, which may involve a recalibration process.
  4. If necessary, replace faulty TPMS sensors or repair any wiring issues.
  5. Clear the DTC from the vehicle's onboard computer system to reset the error code.

Cost to Fix U2149 Saturn

The cost of repairing a lost communication with the Tire Pressure Monitor System can vary depending on the specific cause of the issue and the necessary repairs. On average, the cost of replacing a TPMS sensor can range from $50 to $200 per sensor, including parts and labor. Wiring repairs or ECM replacements may incur additional costs. It's recommended to consult with a qualified mechanic or auto repair shop to obtain an accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates can also impact the final cost of the repair.

Need more information about the U2149 Saturn code?

Need more information on how to fix the U2149 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2149 Saturn code diagnosed by a professional: Find a repair shop in your area

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 U2149 Saturn Code

1. What are the common symptoms of OBDII code U2149 on a Saturn related to lost communication with the tire pressure monitor system?

- Common symptoms include the TPMS warning light appearing on the dashboard, inaccurate tire pressure readings, and potential loss of communication with the tire pressure monitoring system.

2. What are the possible causes of OBDII code U2149 on a Saturn indicating lost communication with the TPMS?

- Possible causes include a faulty TPMS sensor, damaged wiring or connectors in the TPMS system, low tire pressure, or issues with the TPMS module.

3. How can I diagnose the OBDII code U2149 on my Saturn for communication issues with the TPMS?

- Diagnose the code by checking the tire pressure in all tires, inspecting the TPMS sensors for damage, scanning the TPMS module for error codes, and checking the wiring and connectors for any issues.

4. Can I continue driving my Saturn with OBDII code U2149 related to lost communication with the TPMS?

- It is not recommended to continue driving with this code as it can affect the accuracy of your tire pressure readings, potentially leading to unsafe driving conditions.

5. Is it possible to reset the OBDII code U2149 on a Saturn related to lost communication with the TPMS?

- Resetting the code may temporarily turn off the warning light, but it is important to address the underlying issue causing the lost communication with the TPMS to prevent it from reoccurring.

6. How can I repair OBDII code U2149 on my Saturn to restore communication with the TPMS?

- Repair options include replacing a faulty TPMS sensor, repairing damaged wiring or connectors, recalibrating the TPMS system, or resetting the TPMS module to establish communication.

7. Are there any maintenance tips to prevent OBDII code U2149 on a Saturn related to the TPMS?

- Regularly check tire pressure, visually inspect TPMS sensors for damage, and ensure proper maintenance of the TPMS system to prevent communication issues and the triggering of this code.

8. Can extreme weather conditions affect the communication between the Saturn and the TPMS system, leading to code U2149?

- Extreme weather conditions, such as temperature fluctuations or severe cold, can impact the performance of the TPMS system and potentially lead to communication issues triggering the U2149 code.

9. Will fixing OBDII code U2149 on my Saturn require specialized tools or professional assistance?

- Depending on the underlying cause, fixing the code may require specialized diagnostic tools, such as a TPMS scan tool, and professional assistance for complex repairs like module replacement or system recalibration.

10. How long does it typically take to repair OBDII code U2149 on a Saturn related to lost communication with the TPMS?

- The repair time can vary based on the cause of the communication issue with the TPMS. Simple fixes like reprogramming or sensor replacement may take a short time, while more complex issues could require more extensive repair and diagnostic work.

Discuss the causes and fixes for U2149 Saturn OBDII Code

Submit a New Comment

Code U2149 Saturn comments

No comments found for this page.