AutoCodes – Lexus – B2651 Lexus

B2651 Lexus Code - Reclining Sensor Malfunction

Quick Answer

When the Position Control ECU and Switch Assembly does not receive a sensor signal despite forward or backward movement of the seatback by power seat motor operation, this Diagnostic Trouble Code (DTC) is stored. Common causes include Faulty Position Control ECU and Switch Assembly, Position Control ECU and Switch Assembly harness is open or shorted, Position Control ECU and Switch Assembly 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: B2651 Lexus indicates Reclining Sensor Malfunction.
Common causes: Common causes include Faulty Position Control ECU and Switch Assembly, Position Control ECU and Switch Assembly harness is open or shorted, Position Control ECU and Switch Assembly 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 746

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 Jan 14, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2651 Lexus Description

OBDII Code B2651 Lexus - Reclining Sensor Malfunction - AutoCodes.com — B2651 Lexus Code - Reclining Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC B2651 Lexus?

Faulty Position Control ECU and Switch Assembly
Position Control ECU and Switch Assembly harness is open or shorted
Position Control ECU and Switch Assembly circuit poor electrical connection
Faulty Reclining Motor

How to Fix the DTC B2651 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 B2651 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 B2651 Lexus Code

1. What are the common symptoms of OBDII code B2651 in a Lexus related to the Reclining Sensor Malfunction?

- The common symptoms include the inability to adjust the seat recline, erratic movement of the seat back, and potential warning lights on the dashboard.

2. What can cause the Reclining Sensor Malfunction in a Lexus triggering the B2651 OBDII code?

- The malfunction can be caused by a faulty reclining sensor, damaged wiring or connectors, or issues with the seat control module.

3. How can I diagnose the Reclining Sensor Malfunction triggering the B2651 code in my Lexus?

- Diagnosis involves checking the reclining sensor, inspecting the wiring for any damage, and using a diagnostic scanner to read the specific error codes.

4. Are there any DIY repair tips for fixing the Reclining Sensor Malfunction in a Lexus with the B2651 code?

- DIY repair tips include checking and cleaning the connectors, ensuring proper wiring connections, and replacing the reclining sensor if necessary.

5. Can driving with the B2651 OBDII code related to the Reclining Sensor Malfunction in a Lexus be dangerous?

- While it might not pose an immediate danger, driving with this issue can affect the comfort and safety features of the vehicle, so it's advisable to address the problem promptly.

6. How much does it typically cost to repair the Reclining Sensor Malfunction causing the B2651 code in a Lexus?

- The repair costs can vary depending on the specific issue, but it may involve expenses for parts replacement, labor charges, and diagnostic fees.

7. Is it possible to reset the B2651 OBDII code without fixing the Reclining Sensor Malfunction in a Lexus?

- While clearing the code might temporarily turn off the warning lights, it's crucial to address the underlying issue to prevent further problems and ensure the proper functioning of the seat adjustment system.

8. Can a Reclining Sensor Malfunction related to the B2651 code affect other vehicle systems in a Lexus?

- The malfunction primarily affects the seat adjustment system, but in some cases, it can be linked to the overall vehicle electronics, so it's essential to address the issue promptly.

9. How long does it typically take to repair the Reclining Sensor Malfunction causing the B2651 code in a Lexus?

- The repair time can vary depending on the exact cause of the issue and the complexity of the repair, but it may range from a few hours to a full day in some cases.

10. Are there any recalls or service bulletins related to the B2651 OBDII code and Reclining Sensor Malfunction in Lexus vehicles?

- It's recommended to check with the nearest Lexus dealership or visit the manufacturer's website to inquire about any relevant recalls or service bulletins related to this specific issue.