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B2788 Nissan Code - Electric Compressor Over Current

Quick Answer

The B2788 diagnostic trouble code for Nissan vehicles indicates an issue with the electric compressor over current. Common causes include Faulty electric compressor, Restricted refrigerant flow due to a clog or blockage, Electrical issues such as a short circuit in the compressor 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
B2788 Nissan indicates Electric Compressor Over Current.
Common causes
Common causes include Faulty electric compressor, Restricted refrigerant flow due to a clog or blockage, Electrical issues such as a short circuit in the compressor 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B2788 Nissan Description

The B2788 diagnostic trouble code for Nissan vehicles indicates an issue with the electric compressor over current. In vehicles equipped with electric compressors, this code is triggered when the compressor draws more current than it is designed to handle. The electric compressor is responsible for pressurizing the refrigerant in the air conditioning system, which is essential for cooling the interior of the vehicle. When the compressor draws excessive current, it can lead to various performance issues and potentially cause damage to the compressor or other related components.

OBDII Code B2788 Nissan - Electric Compressor Over Current
B2788 Nissan Code - Electric Compressor Over Current

Common Causes of B2788 Nissan

  1. Faulty electric compressor.
  2. Restricted refrigerant flow due to a clog or blockage.
  3. Electrical issues such as a short circuit in the compressor circuit.
  4. Malfunctioning pressure sensor.
  5. Wiring harness damage or corrosion.

Symptoms of B2788 Nissan

  1. Reduced cooling performance from the air conditioning system.
  2. Intermittent or inconsistent operation of the air conditioning compressor.
  3. Unusual noises coming from the compressor.
  4. Illumination of the check engine light or air conditioning warning light on the dashboard.
  5. Electrical issues such as flickering lights or dimming headlights.

How to Fix B2788 Nissan

  1. Diagnose the root cause of the over current condition using a diagnostic scanner and electrical testing equipment.
  2. Inspect the electric compressor for any signs of damage or wear and replace if necessary.
  3. Check the refrigerant flow and system pressure to ensure proper operation.
  4. Test the electrical components, including the wiring harness, pressure sensor, and compressor circuit, to identify any faults and repair as needed.
  5. Clear the trouble code from the vehicle's computer system and test the air conditioning system to verify proper operation.

Cost to Fix B2788 Nissan

The cost of repairing the electric compressor over current issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. On average, the repair costs for this issue can range from $200 to $800, including parts and labor. It is important to note that additional costs may apply if other components need to be replaced or if extensive diagnostic testing is required. It is recommended to obtain quotes from multiple repair shops to compare prices and ensure a fair estimate.

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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 B2788 Nissan Code

1. What are the common symptoms of OBDII code B2788 Electric Compressor Over Current in a Nissan?

When this code is triggered, you may experience issues such as the air conditioning system not cooling effectively, strange noises coming from the compressor, or occasional malfunction of the air conditioning system.

2. What are the possible causes of OBDII code B2788 in a Nissan?

The Electric Compressor Over Current code B2788 in a Nissan can be caused by a faulty electric compressor, wiring issues, a defective compressor control module, or a problem with the air conditioning system's pressure sensors.

3. How can I diagnose OBDII code B2788 Electric Compressor Over Current in my Nissan?

To diagnose this code, you can use an OBDII scanner to retrieve the code and then inspect the electric compressor, wiring, compressor control module, and pressure sensors for any visible damage or faults.

4. Is it safe to continue driving my Nissan with OBDII code B2788 Electric Compressor Over Current?

It is not recommended to drive your Nissan with this code active, as it can lead to further damage to the air conditioning system and potentially cause the compressor to fail completely.

5. What are some repair tips for fixing OBDII code B2788 in my Nissan?

Repairing this code may involve replacing the electric compressor, repairing any damaged wiring, replacing the compressor control module, or addressing any issues with the pressure sensors. It is recommended to consult a qualified mechanic for proper diagnosis and repair.

6. Can resetting the OBDII code B2788 in my Nissan fix the issue temporarily?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is essential to diagnose and repair the root cause of the problem.

7. How much does it typically cost to repair OBDII code B2788 Electric Compressor Over Current in a Nissan?

The cost of repairing this code can vary depending on the specific issue causing it, as well as the cost of parts and labor. It is advisable to obtain quotes from different mechanics or dealerships for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code B2788 in a Nissan, or is professional help necessary?

While some DIY enthusiasts may have the skills to diagnose and repair this code, it is recommended to seek professional help, especially when dealing with complex electrical components like the electric compressor and control module.

9. Are there any preventive measures to avoid OBDII code B2788 in a Nissan?

Regular maintenance of the air conditioning system, including checking for leaks, ensuring proper refrigerant levels, and addressing any unusual noises or issues promptly, can help prevent the occurrence of this code.

10. How long does it usually take to repair OBDII code B2788 Electric Compressor Over Current in a Nissan?

The repair time for this code can vary depending on the specific cause and the extent of the damage. It is advisable to consult with a mechanic to get an accurate estimate of the repair duration.

Discuss the causes and fixes for B2788 Nissan OBDII Code

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  • Hi. I am getting the code B2788 when I attach computer with my Nissan e power 2018 model. I checked it since my air condition stops to function after a prolong halt or when a possible over heated environment. I am unable to find the real fault and remedy. Can some one help please.

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