AutoCodes – Generic – B27CC

B27CC Code - Electric Compressor Voltage Limit

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the command speed control is disabled due to a voltage decrease of the high voltage system. Common causes include Faulty Electric Compressor, Faulty Li-ion Battery, Refrigerant insufficient or overfilled. 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
B27CC indicates Electric Compressor Voltage Limit.
Common causes
Common causes include Faulty Electric Compressor, Faulty Li-ion Battery, Refrigerant insufficient or overfilled.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 642
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 10, 2020
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Code B27CC Description

The Diagnostic Trouble Code (DTC) sets when the command speed control is disabled due to a voltage decrease of the high voltage system.
OBDII Code B27CC - Electric Compressor Voltage Limit - AutoCodes.com
B27CC Code - Electric Compressor Voltage Limit

What are the Possible Causes of the DTC B27CC?

  • Faulty Electric Compressor
  • Faulty Li-ion Battery
  • Refrigerant insufficient or overfilled
  • Faulty Cooling Fan

How to Fix the DTC B27CC?

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 B27CC 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 B27CC code?

Need more information on how to fix the B27CC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B27CC code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 B27CC Code

1. What are the common symptoms of OBDII code B27CC (Electric Compressor Voltage Limit)?

- Common symptoms include reduced air conditioning performance, intermittent cooling, and potential illumination of the check engine light.

2. What are the possible causes of OBDII code B27CC?

- The code B27CC can be triggered by issues such as a faulty electric compressor, low refrigerant levels, wiring issues, or a malfunctioning pressure sensor.

3. How can I diagnose the cause of OBDII code B27CC?

- Diagnosing the code typically involves conducting a visual inspection of the compressor and associated wiring, checking refrigerant levels, and using a diagnostic scanner to retrieve specific fault codes.

4. Can low refrigerant levels cause OBDII code B27CC?

- Yes, low refrigerant levels can lead to insufficient cooling and trigger the electric compressor voltage limit code B27CC.

5. What repair tips can help resolve OBDII code B27CC?

- Repair tips may include checking and topping up refrigerant levels, inspecting and repairing any damaged wiring, replacing a faulty electric compressor, or recalibrating the pressure sensor.

6. Is it safe to continue driving with OBDII code B27CC present?

- It is recommended not to ignore OBDII code B27CC, as it can affect the performance of your vehicle's air conditioning system. Continuing to drive with this code present may lead to further damage.

7. Can a DIY enthusiast fix OBDII code B27CC?

- Depending on the cause of the code, some repairs related to OBDII code B27CC may be suitable for experienced DIY enthusiasts. However, complex issues may require professional assistance.

8. How much does it cost to repair OBDII code B27CC?

- The cost of repairing OBDII code B27CC can vary depending on the underlying cause. Simple fixes like recharging refrigerant may cost less, while compressor replacements or extensive wiring repairs can be more expensive.

9. Will resetting the OBDII code B27CC resolve the issue?

- Resetting the code may temporarily clear the check engine light, but it will not fix the underlying problem causing OBDII code B27CC. It is essential to diagnose and address the root cause to prevent the code from reoccurring.

10. How can regular maintenance prevent OBDII code B27CC from appearing?

- Regular maintenance, such as checking refrigerant levels, inspecting the air conditioning system, and addressing any issues promptly, can help prevent OBDII code B27CC and other related problems from occurring.

Discuss the causes and fixes for B27CC OBDII Code

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