AutoCodes – Nissan – B2789 Nissan

B2789 Nissan Code - Electric Compressor Over Loaded

Quick Answer

The Diagnostic Trouble Code (DTC) sets when a current of 13.5 A or more is input to the electric compressor. 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: B2789 Nissan indicates Electric Compressor Over Loaded.
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 578

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 Feb 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2789 Nissan Description

The Diagnostic Trouble Code (DTC) sets when a current of 13.5 A or more is input to the electric compressor.

OBDII Code B2789 Nissan - Electric Compressor Over Loaded - AutoCodes.com — B2789 Nissan Code - Electric Compressor Over Loaded

What does this mean?

What are the Possible Causes of the DTC B2789 Nissan?

Faulty Electric Compressor
Electric Compressor harness is open or shorted
Electric Compressor circuit poor electrical connection
Faulty Cooling Fan

How to Fix the DTC B2789 Nissan?

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 B2789 Nissan 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.

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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 B2789 Nissan Code

1. What are the common symptoms of OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- Common symptoms include the air conditioning system not cooling properly, unusual noises coming from the compressor, and the AC system shutting off unexpectedly.

2. What are some possible causes of OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- Possible causes include a faulty electric compressor, issues with the compressor clutch, low refrigerant levels, or a malfunctioning pressure sensor.

3. How can I diagnose the OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- Diagnose the code by checking the refrigerant levels, inspecting the compressor for any visible damage, testing the compressor clutch, and verifying the pressure sensor's operation.

4. Can I continue driving with OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- It is not recommended to drive with this code as it can lead to further damage to the AC system. Address the issue promptly to avoid potential costly repairs.

5. What are some repair tips for fixing OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- Repair tips include checking the compressor wiring for any damage, replacing the electric compressor if necessary, recharging the refrigerant, and resetting the system after repairs.

6. Are there any recalls or technical service bulletins related to OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- Check with Nissan dealerships or online resources for any recalls or technical service bulletins related to this code to see if there are known issues or solutions provided by the manufacturer.

7. Can a DIY enthusiast fix OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address this code by following repair guides and using proper diagnostic equipment.

8. How much does it typically cost to repair OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- The cost of repair can vary depending on the extent of the damage and the parts needed. It is recommended to get estimates from qualified mechanics or service centers.

9. Will resetting the OBDII code B2789 (Nissan) for Electric Compressor Over Loaded make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and fix the root cause of the problem.

10. How long does it take to repair OBDII code B2789 (Nissan) for Electric Compressor Over Loaded?

- The repair time can vary based on the specific issue causing the code. Simple fixes like recharging refrigerant may take less time, while replacing a faulty compressor can be a more involved process.