AutoCodes – Lexus – B1476 Lexus

B1476 Lexus Code - A/C Inverter Load System Malfunction

Quick Answer

The A/C Inverter Assembly stops compressor control and outputs the Diagnostic Trouble Code (DTC) if the rotation load is too great or too small while controlling motor rotation in the A/C Inverter Assembly. Common causes include Volume of refrigerant, Faulty Electric Inverter Compressor (w/Motor Compressor Assembly), Cooling Fan Circuit. 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: B1476 Lexus indicates A/C Inverter Load System Malfunction.
Common causes: Common causes include Volume of refrigerant, Faulty Electric Inverter Compressor (w/Motor Compressor Assembly), Cooling Fan Circuit.
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 6,169

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 Apr 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1476 Lexus Description

OBDII Code B1476 Lexus - A/C Inverter Load System Malfunction - AutoCodes.com — B1476 Lexus Code - A/C Inverter Load System Malfunction

What does this mean?

What are the Possible Causes of the DTC B1476 Lexus?

Volume of refrigerant
Faulty Electric Inverter Compressor (w/Motor Compressor Assembly)
Cooling Fan Circuit

How to Fix the DTC B1476 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 B1476 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 B1476 Lexus 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 B1476 Lexus Code

1. What are the common symptoms of OBDII code B1476 in a Lexus related to the A/C Inverter Load System Malfunction?

- Common symptoms include issues with the air conditioning system not cooling properly, unusual noises coming from the A/C system, and the A/C inverter not functioning correctly.

2. What are the possible causes of OBDII code B1476 in a Lexus indicating an A/C Inverter Load System Malfunction?

- Possible causes can include a malfunctioning A/C inverter, damaged wiring or connectors related to the inverter, or issues with the inverter control module.

3. How can I diagnose OBDII code B1476 in a Lexus for an A/C Inverter Load System Malfunction?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the A/C inverter components for any visible damage, and performing electrical tests to identify the root cause.

4. Is it safe to continue driving my Lexus with OBDII code B1476 related to the A/C Inverter Load System Malfunction?

- It is not recommended to drive the vehicle with this fault code, as it can lead to further damage to the A/C system and potentially cause other issues with the vehicle's electrical components.

5. How can I repair OBDII code B1476 in a Lexus for an A/C Inverter Load System Malfunction?

- Repair options may include replacing the faulty A/C inverter, repairing or replacing damaged wiring or connectors, or recalibrating the inverter control module as per manufacturer guidelines.

6. Can a DIY enthusiast fix OBDII code B1476 in a Lexus related to the A/C Inverter Load System Malfunction?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing complex electrical issues like this code may require specialized tools and expertise best handled by a professional mechanic.

7. How much does it typically cost to repair OBDII code B1476 for an A/C Inverter Load System Malfunction in a Lexus?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Are there any preventative maintenance tips to avoid OBDII code B1476 related to the A/C Inverter Load System Malfunction in a Lexus?

- Regularly inspecting the A/C system for any signs of wear or damage, ensuring proper maintenance of the vehicle's electrical components, and addressing any issues promptly can help prevent this error code from occurring.