AutoCodes – Generic – B264F

B264F Code - Electric Compressor Stand-By Signal Line Short

Quick Answer

The inverter activation signal is sent to the Electric Compressor from the Hybrid Vehicle (HV) ECU. Common causes include Faulty Electric Compressor, Electric Compressor harness is open or shorted, Electric Compressor 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: B264F indicates Electric Compressor Stand-By Signal Line Short.
Common causes: Common causes include Faulty Electric Compressor, Electric Compressor harness is open or shorted, Electric Compressor 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 808

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 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B264F Description

The inverter activation signal is sent to the Electric Compressor from the Hybrid Vehicle (HV) ECU. The Electric Compressor control is stopped and the Diagnostic Trouble Code (DTC) is output if there is an open or short in the signal circuit.

OBDII Code B264F - Electric Compressor Stand-By Signal Line Short - AutoCodes.com — B264F Code - Electric Compressor Stand-By Signal Line Short

What does this mean?

What are the Possible Causes of the DTC B264F?

Faulty Electric Compressor
Electric Compressor harness is open or shorted
Electric Compressor circuit poor electrical connection
Faulty Hybrid Control System

How to Fix the DTC B264F?

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 B264F 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 B264F code?

Need more information on how to fix the B264F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B264F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B264F Infiniti — Electric Compressor Stand-By Signal Line Short
B264F Nissan — Electric Compressor Stand-By Signal Line Short

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 B264F Code

1. What does the OBDII code B264F mean?

The B264F code indicates a problem with the electric compressor stand-by signal line, typically caused by a short circuit or wiring issue.

2. What are the common symptoms of the B264F code?

Symptoms may include improper air conditioning function, the A/C system not engaging, or a check engine light.

3. What causes the B264F code to appear?

Common causes include damaged wiring, a short to ground or power in the signal line, a faulty electric compressor, or a malfunctioning control module.

4. How is the B264F code diagnosed?

Technicians use a scan tool to verify the code, inspect the wiring and connectors for damage, and test the stand-by signal line for continuity or shorts.

5. Can I drive my car with the B264F code active?

Yes, you can drive the vehicle, but the air conditioning system may not function properly until the issue is resolved.

6. How do I fix the B264F code?

Repairs typically involve repairing or replacing damaged wiring, fixing short circuits, or replacing the electric compressor or associated modules if necessary.

7. How much does it cost to repair the B264F code?

Repair costs vary, but fixing wiring issues may range from $100 to $300, while replacing the compressor could cost $1,000 or more depending on the vehicle.

8. Can I clear the B264F code without fixing the issue?

Clearing the code without addressing the underlying problem will only temporarily remove the warning, as the issue will cause the code to reappear.

9. What tools are needed to troubleshoot the B264F code?

A multimeter to test electrical circuits, a scan tool to read and clear codes, and wiring diagrams for the vehicle are typically needed.

10. Is the B264F code specific to certain vehicle makes or models?

While the specific code definition may vary slightly, it is most commonly associated with vehicles equipped with electric compressors in their air conditioning systems. Always check your vehicle's service manual for details.