AutoCodesNissan – B1028 Nissan

B1028 Nissan Code - Diagnosis Sensor Unit

Quick Answer

The Air Bag Diagnosis Sensor Unit detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air bag warning lamp in the combination meter. Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit 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
B1028 Nissan indicates Diagnosis Sensor Unit.
Common causes
Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit 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 3,194
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 11, 2021
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Code B1028 Nissan Description

The Air Bag Diagnosis Sensor Unit detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air bag warning lamp in the combination meter. The Air Bag Diagnosis Sensor Unit detects a shock that exceeds specified level and watches such systems as the driver and passenger air bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate properly.
The Air Bag Diagnosis Sensor Unit contains the “G” sensors for both frontal and side collisions and spare battery function in case of main battery damaged in a collision.
OBDII Code B1028 Nissan - Diagnosis Sensor Unit - AutoCodes.com
B1028 Nissan Code - Diagnosis Sensor Unit

What are the Possible Causes of the DTC B1028 Nissan?

  • Faulty Diagnosis Sensor Unit
  • Diagnosis Sensor Unit harness is open or shorted
  • Diagnosis Sensor Unit circuit poor electrical connection

How to Fix the DTC B1028 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 B1028 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.

Need more information about the B1028 Nissan code?

Need more information on how to fix the B1028 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1028 Nissan code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B1028 Nissan Code

1. What are the common symptoms of OBDII code B1028 in a Nissan related to the Diagnosis Sensor Unit?

- Common symptoms include issues with the airbag system, such as the airbag warning light staying on or flashing on the dashboard.

2. What are the possible causes of OBDII code B1028 in a Nissan?

- The code B1028 in a Nissan is typically caused by a faulty Diagnosis Sensor Unit, damaged wiring, or poor electrical connections.

3. How can I diagnose the Diagnosis Sensor Unit issue causing OBDII code B1028 in my Nissan?

- Diagnosing the Diagnosis Sensor Unit issue involves using a professional OBDII scanner to retrieve the specific code, inspecting the wiring connections, and testing the sensor unit for functionality.

4. Can I repair the Diagnosis Sensor Unit problem causing OBDII code B1028 in my Nissan on my own?

- Repairing the Diagnosis Sensor Unit issue may require advanced automotive knowledge and specialized tools. It is recommended to seek assistance from a qualified mechanic or dealership.

5. Are there any DIY tips to troubleshoot OBDII code B1028 in a Nissan before seeking professional help?

- Before seeking professional help, you can check the wiring connections for any visible damage, ensure all connections are secure, and reset the airbag system by disconnecting the battery for a few minutes.

6. Is it safe to drive my Nissan with OBDII code B1028 related to the Diagnosis Sensor Unit illuminated?

- It is not recommended to drive the vehicle with the airbag warning light on, as it indicates a potential issue with the airbag system, which could affect its functionality in the event of an accident.

7. How much does it typically cost to repair the Diagnosis Sensor Unit problem causing OBDII code B1028 in a Nissan?

- The cost of repairing the Diagnosis Sensor Unit issue can vary depending on the extent of the damage and the labor rates of the repair shop. It is advisable to get a few quotes from different mechanics.

8. Can a faulty Diagnosis Sensor Unit causing OBDII code B1028 in a Nissan be reset without repairs?

- Resetting the code without addressing the underlying issue will likely result in the code reappearing. It is crucial to diagnose and repair the problem to ensure the safety and functionality of the airbag system.

9. How long does it usually take to repair the Diagnosis Sensor Unit problem leading to OBDII code B1028 in a Nissan?

- The repair time can vary depending on the complexity of the issue and the availability of parts. It is best to consult with a mechanic for a more accurate estimate of the repair duration.

10. Can a DIY enthusiast replace the Diagnosis Sensor Unit themselves to fix OBDII code B1028 in a Nissan?

- Replacing the Diagnosis Sensor Unit typically requires specialized tools and knowledge of airbag systems. It is recommended to leave this type of repair to experienced professionals to ensure proper installation and functionality.

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