AutoCodes – RAM – B129E RAM

B129E RAM Code - Left Blind Spot Sensor Alignment Or Adjustment Incorrect

Quick Answer

The Blind Spot Module (BSM) monitors the Left Blind Spot Sensor (LBSS). Common causes include Left Blind Spot Sensor Bracket Damager or Misaligned, Faulty Left Blind Spot Sensor, Left Blind Spot Sensor harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B129E RAM indicates Left Blind Spot Sensor Alignment Or Adjustment Incorrect.
Common causes: Common causes include Left Blind Spot Sensor Bracket Damager or Misaligned, Faulty Left Blind Spot Sensor, Left Blind Spot Sensor harness is open or shorted.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 911

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B129E RAM Description

The Blind Spot Module (BSM) monitors the Left Blind Spot Sensor (LBSS). The BSM integrated into the LBSS sets the OBDII code when the Blind Spot Sensor detects sensor alignment or adjustment incorrect.

OBDII Code B129E RAM - Left Blind Spot Sensor Alignment Or Adjustment Incorrect - AutoCodes.com — B129E RAM Code - Left Blind Spot Sensor Alignment Or Adjustment Incorrect

What does this mean?

What are the Possible Causes of the DTC B129E RAM?

Left Blind Spot Sensor Bracket Damager or Misaligned
Faulty Left Blind Spot Sensor
Left Blind Spot Sensor harness is open or shorted
Left Blind Spot Sensor circuit poor electrical connection

How to Fix the DTC B129E 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 B129E 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.

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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 B129E RAM Code

1. What are common symptoms of OBDII code B129E RAM?

The common symptoms of code B129E RAM include inaccurate or malfunctioning left blind spot sensor readings, warning lights on the dashboard, and potential issues with blind spot monitoring systems.

2. What can cause the OBDII code B129E RAM to trigger?

This code is typically triggered when the left blind spot sensor is not properly aligned or calibrated, leading to incorrect readings or failures in the blind spot monitoring system.

3. How can I diagnose the cause of OBDII code B129E RAM?

Diagnosing code B129E RAM involves checking the alignment and adjustment of the left blind spot sensor, inspecting for any physical damage or obstructions, and using diagnostic tools to assess the sensor's functionality.

4. Can I fix the alignment or adjustment issue causing code B129E RAM myself?

Adjusting the alignment of the left blind spot sensor may require specialized tools and software, so it is recommended to consult a professional technician or dealership for proper calibration and adjustment to resolve the issue.

5. Are there any quick repair tips for resolving code B129E RAM?

Quick repair tips for code B129E RAM include checking for loose connections, ensuring the sensor is free from dirt or debris, and resetting the system by disconnecting the battery for a few minutes before reconnecting.

6. Will driving with OBDII code B129E RAM active cause any safety concerns?

Driving with code B129E RAM may affect the accuracy of your blind spot monitoring system, potentially leading to safety risks due to incorrect sensor readings. It is advisable to address the issue promptly.

7. How much does it cost to repair OBDII code B129E RAM at a dealership?

The cost of repairing code B129E RAM at a dealership can vary depending on the extent of the alignment or adjustment needed, but it may involve labor charges and possible sensor recalibration fees.

8. Can OBDII code B129E RAM be intermittent or permanent?

Code B129E RAM can be either intermittent or permanent, with intermittent occurrences possibly indicating temporary alignment issues or sensor malfunctions that come and go.

9. Are there any recalls or technical service bulletins related to OBDII code B129E RAM?

Manufacturers may issue recalls or technical service bulletins related to code B129E RAM for specific vehicle models, so it is recommended to check with your dealership or manufacturer for any relevant information.

10. How important is it to address OBDII code B129E RAM promptly?

Addressing code B129E RAM promptly is important to ensure the proper functioning of your blind spot monitoring system and maintain safety on the road by having accurate sensor readings while driving.