AutoCodes – Lexus – B2055 Lexus

B2055 Lexus Code - Radar Sensor Malfunction

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when there is a malfunction in the communication from the millimeter wave radar sensor. Common causes include Faulty Radar Sensor, Radar Sensor harness is open or shorted, Radar 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: B2055 Lexus indicates Radar Sensor Malfunction.
Common causes: Common causes include Faulty Radar Sensor, Radar Sensor harness is open or shorted, Radar 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 1,468

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 Sep 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2055 Lexus Description

This Diagnostic Trouble Code (DTC) is stored when there is a malfunction in the communication from the millimeter wave radar sensor. This DTC is also stored when the vehicle information sent from the millimeter wave radar sensor is abnormal. In these cases, perform initialization so that the millimeter wave radar sensor recognizes the vehicle information. The Seat Belt Control ECU sets the OBDII code if there is a malfunction in the millimeter wave radar sensor or there is a problem with the initialization.

OBDII Code B2055 Lexus - Radar Sensor Malfunction - AutoCodes.com — B2055 Lexus Code - Radar Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC B2055 Lexus?

Faulty Radar Sensor
Radar Sensor harness is open or shorted
Radar Sensor circuit poor electrical connection
Faulty Seat Belt Control ECU
Faulty Distance Control ECU

How to Fix the DTC B2055 Lexus?

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 B2055 Lexus 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 B2055 Lexus code?

Need more information on how to fix the B2055 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2055 Lexus code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B2055 Lexus Code

1. What are the common symptoms of OBDII code B2055 in a Lexus related to radar sensor malfunction?

The common symptoms include issues with the adaptive cruise control system, malfunction indicator light (MIL) illumination, and potential loss of radar sensor functionality.

2. What are some possible causes of OBDII code B2055 in a Lexus indicating radar sensor malfunction?

Possible causes may include faulty radar sensor hardware, damaged wiring or connectors, interference from other electronic devices, or a software glitch within the system.

3. How can I diagnose the radar sensor malfunction causing OBDII code B2055 in my Lexus?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific trouble code, conducting a visual inspection of the radar sensor components, checking for loose or damaged connections, and performing radar sensor system tests as per the manufacturer's guidelines.

4. Are there any DIY repair tips for addressing the radar sensor malfunction associated with OBDII code B2055 in a Lexus?

While some basic checks like ensuring proper sensor alignment and cleaning the sensor's lens may help, it is recommended to seek professional assistance for accurate diagnosis and repair of radar sensor issues.

5. Can weather conditions affect the radar sensor performance leading to OBDII code B2055 in a Lexus?

Yes, extreme weather conditions such as heavy rain, snow, or fog can impact radar sensor functionality and trigger the radar sensor malfunction code B2055 in a Lexus.

6. Is it safe to drive my Lexus with OBDII code B2055 due to radar sensor malfunction?

It is generally not recommended to drive the vehicle with a malfunctioning radar sensor as it can compromise the proper functioning of safety features like adaptive cruise control. Seek professional help to address the issue promptly.

7. How much can I expect to pay for repairing the radar sensor malfunction causing OBDII code B2055 in my Lexus?

The cost of repair can vary depending on the specific issue, parts needed, labor charges, and dealership or service center rates. It is advisable to get a few quotes from reputable mechanics or service centers.

8. Can resetting the OBDII system clear the B2055 code related to radar sensor malfunction in a Lexus?

While resetting the system may temporarily clear the code, it is crucial to address the underlying radar sensor issue causing the malfunction to prevent the code from reoccurring.

9. Are there any maintenance tips to prevent OBDII code B2055 due to radar sensor malfunction in a Lexus?

Regularly inspecting the radar sensor components for damage, keeping the sensor clean, and avoiding physical damage to the sensor can help prevent issues leading to the B2055 trouble code.

10. How long does it typically take to repair a radar sensor malfunction causing OBDII code B2055 in a Lexus?

The repair time can vary based on the complexity of the issue, availability of parts, and the expertise of the technician. It is best to consult with the repair facility for an accurate estimate of the repair duration.