AutoCodes – Lexus – B2551 Lexus

B2551 Lexus Code - Pulse Width Modulation Motor Right Power Supply Circuit Malfunction

Quick Answer

This circuit indicates the roof motor, luggage motor or luggage closer motor depending on which motor is being used. Common causes include Faulty Sliding Roof Control ECU, Sliding Roof Control ECU harness is open or shorted, Sliding Roof Control ECU 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: B2551 Lexus indicates Pulse Width Modulation Motor Right Power Supply Circuit Malfunction.
Common causes: Common causes include Faulty Sliding Roof Control ECU, Sliding Roof Control ECU harness is open or shorted, Sliding Roof Control ECU 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 553

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 Dec 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2551 Lexus Description

This circuit indicates the roof motor, luggage motor or luggage closer motor depending on which motor is being used.

OBDII Code B2551 Lexus - Pulse Width Modulation Motor Right Power Supply Circuit Malfunction - AutoCodes.com — B2551 Lexus Code - Pulse Width Modulation Motor Right Power Supply Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B2551 Lexus?

Faulty Sliding Roof Control ECU
Sliding Roof Control ECU harness is open or shorted
Sliding Roof Control ECU circuit poor electrical connection

How to Fix the DTC B2551 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 B2551 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.

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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 B2551 Lexus Code

1. What are the common symptoms of OBDII code B2551 in a Lexus related to the Pulse Width Modulation Motor Right Power Supply Circuit Malfunction?

- Common symptoms include issues with the power windows, power seats, power mirrors, or other electronic components on the right side of the vehicle.

2. What are the possible causes of the B2551 code in a Lexus?

- Possible causes include a faulty pulse width modulation motor, damaged wiring or connectors in the circuit, a blown fuse, or a malfunctioning power supply control module.

3. How can I diagnose the B2551 code in my Lexus?

- To diagnose the issue, you can use an OBDII scanner to read the trouble codes and perform a visual inspection of the wiring and connectors related to the right power supply circuit. Testing the components for proper functionality is also recommended.

4. What is the recommended repair for the Pulse Width Modulation Motor Right Power Supply Circuit Malfunction in a Lexus?

- The recommended repair typically involves repairing or replacing the faulty pulse width modulation motor, repairing damaged wiring or connectors, replacing a blown fuse, or addressing any issues with the power supply control module.

5. Can I drive my Lexus with the B2551 code present?

- It is not recommended to drive the vehicle with the B2551 code present, as it can lead to further electrical issues and potential component failure on the right side of the vehicle.

6. How much does it cost to repair the B2551 code in a Lexus?

- The cost of repair can vary depending on the specific issue causing the code. It is advisable to consult with a professional mechanic or dealership for an accurate diagnosis and cost estimate.

7. Is the B2551 code a common issue in Lexus vehicles?

- While not extremely common, the B2551 code related to the Pulse Width Modulation Motor Right Power Supply Circuit Malfunction can occur in Lexus vehicles, especially in older models or vehicles with high mileage.

8. Can I reset the B2551 code in my Lexus without repairing the issue?

- While you can clear the trouble code with an OBDII scanner, it is not recommended to reset the code without addressing the underlying problem, as it may lead to recurring issues and potential safety concerns.

9. Are there any preventative measures to avoid the B2551 code in a Lexus?

- Regular inspection and maintenance of the vehicle's electrical components, such as checking for loose or damaged wiring, can help prevent issues that may trigger the B2551 code.

10. How long does it take to repair the Pulse Width Modulation Motor Right Power Supply Circuit Malfunction in a Lexus?

- The repair time can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, it can take a few hours to a full day to diagnose and repair the problem.