AutoCodes – RAM – U149D RAM

U149D RAM 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 RAM 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 589
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 31, 2020
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Code U149D RAM 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 RAM - LBSS Receives An Implausible Message From The BCM - AutoCodes.com
U149D RAM Code - LBSS Receives An Implausible Message From The BCM

What are the Possible Causes of the DTC U149D RAM?

  • 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 RAM?

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 RAM 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 U149D RAM 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 U149D RAM Code

1. What are common symptoms of OBDII code U149D RAM titled LBSS Receives An Implausible Message From The BCM?

- Common symptoms include erratic speedometer readings, cruise control malfunctions, and illuminated warning lights on the dashboard.

2. What can cause the OBDII code U149D RAM to trigger LBSS Receives An Implausible Message From The BCM?

- The most common causes are faulty wiring connections, a malfunctioning BCM (Body Control Module), or a communication error between the LBSS and BCM.

3. How can I diagnose the issue related to code U149D RAM LBSS Receives An Implausible Message From The BCM?

- Use a diagnostic scanner to retrieve the fault code, inspect the wiring harness for any damage, and check for loose connections between the LBSS and BCM.

4. Is it safe to drive my vehicle with the U149D RAM code related to LBSS and BCM communication issue?

- It is not recommended to drive the vehicle with this code present, as it can lead to inaccurate speed readings and potential safety hazards.

5. How can I repair OBDII code U149D RAM LBSS Receives An Implausible Message From The BCM?

- Repair options include fixing wiring issues, replacing the LBSS or BCM if necessary, and clearing the fault code with a diagnostic tool.

6. Can a DIY enthusiast fix the U149D RAM code issue at home?

- Depending on the level of expertise, a DIY enthusiast may be able to address simple wiring problems but more complex issues may require professional assistance.

7. Will resetting the fault code temporarily resolve the U149D RAM LBSS communication problem?

- Resetting the fault code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to reappear.

8. Are there any recalls or technical service bulletins related to OBDII code U149D RAM LBSS Receives An Implausible Message From The BCM?

- It's advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical bulletins related to this specific fault code.

9. How much does it typically cost to repair the U149D RAM code issue with LBSS and BCM communication?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a simple wiring repair cost to a more expensive BCM replacement.

10. Can a faulty LBSS affect other systems in the vehicle besides the speedometer and cruise control?

- Yes, a malfunctioning LBSS can affect other systems that rely on speed data, such as the transmission control module or the ABS (Anti-lock Braking System).

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