AutoCodes – Infiniti – B2631 Infiniti

B2631 Infiniti Code - Sunload Sensor Malfunction

Quick Answer

The Air Condition (A/C) Automatic Amplifier monitors the Sunload Sensor. Common causes include Faulty Sunload Sensor, Sunload Sensor harness is open or shorted, Sunload 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: B2631 Infiniti indicates Sunload Sensor Malfunction.
Common causes: Common causes include Faulty Sunload Sensor, Sunload Sensor harness is open or shorted, Sunload 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 23,980

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 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2631 Infiniti Description

The Air Condition (A/C) Automatic Amplifier monitors the Sunload Sensor. The Diagnostic Trouble Code (DTC) code sets when A/C Automatic Amplifier detects calorie at Sunload Sensor (driver side) 64.7 W/m2 (55.6 kcal/m2Â·h) or less.

OBDII Code B2631 Infiniti - Sunload Sensor Malfunction - AutoCodes.com — B2631 Infiniti Code - Sunload Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC B2631 Infiniti?

Faulty Sunload Sensor
Sunload Sensor harness is open or shorted
Sunload Sensor circuit poor electrical connection
Faulty Air Condition (A/C) Automatic Amplifier

How to Fix the DTC B2631 Infiniti?

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 B2631 Infiniti 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 B2631 Infiniti code?

Need more information on how to fix the B2631 Infiniti code? Get Access to Factory Service Manuals

Need Help with the 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 B2631 Infiniti Code

1. What are the common symptoms of OBDII code B2631 (Infiniti) related to the Sunload Sensor Malfunction?

The common symptoms include inaccurate temperature readings in the vehicle cabin, inconsistent operation of the climate control system, and potential issues with automatic temperature adjustments.

2. What could cause the Sunload Sensor Malfunction (B2631) in an Infiniti vehicle?

Possible causes of this malfunction may include a faulty sunload sensor, damaged wiring or connectors in the sensor circuit, or issues with the climate control module.

3. How can I diagnose the Sunload Sensor Malfunction (B2631) in my Infiniti?

Diagnosing this issue typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the sunload sensor and its wiring for any visible damage, and performing system tests to identify the root cause.

4. Can I drive my Infiniti with the B2631 code indicating a Sunload Sensor Malfunction?

It is generally safe to drive your vehicle with this code, but you may experience inconsistent climate control operation or inaccurate temperature readings until the issue is resolved.

5. Is it possible to reset the B2631 OBDII code related to the Sunload Sensor Malfunction in an Infiniti?

Resetting the code may temporarily clear the fault, but if the underlying issue with the sunload sensor or its circuit is not fixed, the code is likely to reappear.

6. How much does it typically cost to repair the Sunload Sensor Malfunction (B2631) in an Infiniti?

The cost of repairing this issue can vary depending on the exact cause of the malfunction, but it may involve replacing the sunload sensor, repairing wiring or connectors, or addressing issues with the climate control module. Costs can range from a few hundred to over a thousand dollars.

7. Can a DIY enthusiast repair the B2631 code related to the Sunload Sensor Malfunction in an Infiniti?

While some DIYers may be able to diagnose and address simpler issues like damaged wiring, repairing or replacing the sunload sensor itself often requires specialized tools and expertise, so professional assistance is recommended.

8. Will the Sunload Sensor Malfunction (B2631) affect my vehicle's performance?

This malfunction typically does not affect the overall performance or drivability of the vehicle but may result in discomfort due to improper climate control operation.

9. How long does it usually take to repair the Sunload Sensor Malfunction (B2631) in an Infiniti?

The repair time can vary depending on the specific cause of the issue and the availability of parts. In general, it may take a few hours to a day to diagnose and fix the problem.

10. Can the Sunload Sensor Malfunction (B2631) in an Infiniti lead to other related issues if left unaddressed?

Leaving this issue unresolved may result in continued inaccurate temperature readings, inefficient climate control operation, and potential strain on other components of the vehicle's HVAC system over time.