AutoCodes – Dodge – U149D Dodge

U149D Dodge Code - LBSS Receives An Implausible Message From The BCM

Quick Answer

The Diagnostic Trouble Code (DTC) will set when the Left Blind Spot Sensor (LBSS) receives an implausible message from the Body Control Module (BCM). Common causes include Faulty Left Blind Spot Sensor (LBSS), Left Blind Spot Sensor harness is open or shorted, Left Blind Spot Sensor 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: U149D Dodge indicates LBSS Receives An Implausible Message From The BCM.
Common causes: Common causes include Faulty Left Blind Spot Sensor (LBSS), Left Blind Spot Sensor harness is open or shorted, Left Blind Spot Sensor 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 605

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U149D Dodge Description

The Diagnostic Trouble Code (DTC) will set when the Left Blind Spot Sensor (LBSS) receives an implausible message from the Body Control Module (BCM).

OBDII Code U149D Dodge - LBSS Receives An Implausible Message From The BCM - AutoCodes.com — U149D Dodge Code - LBSS Receives An Implausible Message From The BCM

What does this mean?

What are the Possible Causes of the DTC U149D Dodge?

Faulty Left Blind Spot Sensor (LBSS)
Left Blind Spot Sensor harness is open or shorted
Left Blind Spot Sensor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC U149D Dodge?

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 U149D Dodge 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 U149D Dodge Code

What are common symptoms of OBDII code U149D in a Dodge vehicle?

Symptoms may include erratic behavior of the LBSS (Left Blind Spot Sensor) system, warning lights on the dashboard, and potential loss of functionality in the blind spot monitoring system.

What could cause the OBDII code U149D to appear in a Dodge vehicle?

This code typically indicates that the LBSS module has received an implausible message from the Body Control Module (BCM), which can be caused by wiring issues, faulty sensors, or a malfunction in the BCM itself.

How can I diagnose the cause of OBDII code U149D in my Dodge vehicle?

Diagnosis involves checking the wiring harness for any damage, testing the sensors for proper functionality, and using a diagnostic scan tool to communicate with the LBSS and BCM modules for fault codes and data.

What should I do if I encounter the U149D code in my Dodge vehicle?

It is recommended to address the issue promptly to ensure the proper functioning of the blind spot monitoring system. Seek assistance from a qualified mechanic or dealership to accurately diagnose and repair the problem.

Are there any specific repair tips for fixing the U149D code in a Dodge vehicle?

Repair tips may include repairing or replacing damaged wiring, calibrating or replacing sensors if necessary, and reprogramming or replacing the BCM if it is determined to be faulty.

Can the OBDII code U149D be cleared/reset in a Dodge vehicle?

Once the underlying issue causing the code has been addressed and repaired, the code can be cleared/reset using a diagnostic scan tool to ensure it does not reappear.

Is it safe to continue driving with the U149D code illuminated in a Dodge vehicle?

It is not recommended to continue driving with the U149D code present, as it may indicate a malfunction in the blind spot monitoring system which could compromise safety on the road. Address the issue promptly.

Does the U149D code in a Dodge vehicle require immediate attention?

While the vehicle may still be operable with the U149D code present, it is advisable to address the issue promptly to avoid potential safety risks and ensure the proper functioning of the blind spot monitoring system.

How can I prevent the U149D code from reoccurring in my Dodge vehicle?

Regular maintenance and inspections of the blind spot monitoring system, as well as addressing any related issues promptly, can help prevent the U149D code from reoccurring in the future.