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Engine-Codes – Infiniti – B1012 Infiniti

B1012 Infiniti Code - Diagnosis Sensor Unit

Quick Answer

The B1012 Infiniti code relates to an issue with the Diagnosis Sensor Unit in the vehicle. Common causes include Faulty Diagnosis Sensor Unit, Wiring issues or electrical connections, Corrosion or damage to the sensor components. 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
B1012 Infiniti indicates Diagnosis Sensor Unit.
Common causes
Common causes include Faulty Diagnosis Sensor Unit, Wiring issues or electrical connections, Corrosion or damage to the sensor components.
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 11, 2024
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Code B1012 Infiniti Description

The B1012 Infiniti code relates to an issue with the Diagnosis Sensor Unit in the vehicle. The Diagnosis Sensor Unit is a crucial component that is responsible for monitoring various systems and sensors within the vehicle. When this unit malfunctions or fails, it can lead to a range of problems that can affect the vehicle's performance and overall functionality.

OBDII Code B1012 Infiniti - Diagnosis Sensor Unit
B1012 Infiniti Code - Diagnosis Sensor Unit

Common Causes of B1012 Infiniti

  1. Faulty Diagnosis Sensor Unit
  2. Wiring issues or electrical connections
  3. Corrosion or damage to the sensor components
  4. Software malfunction or calibration errors
  5. Environmental factors such as extreme temperatures or moisture exposure

Symptoms of B1012 Infiniti

  1. Dashboard warning lights illuminated
  2. Inaccurate readings on the vehicle's display
  3. Engine performance issues
  4. Difficulty starting the vehicle
  5. Unusual noises coming from the engine or other components

How to Fix B1012 Infiniti

  1. Begin by conducting a thorough diagnostic scan to identify the specific cause of the B1012 code.
  2. Inspect the Diagnosis Sensor Unit and related components for any visible damage or corrosion.
  3. Check the wiring and electrical connections for any loose connections or breaks that may be causing the issue.
  4. Replace the faulty Diagnosis Sensor Unit or any damaged components as needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix B1012 Infiniti

The typical repair costs for addressing a B1012 Infiniti code can vary depending on the extent of the issue and the specific components that need to be replaced. In general, you can expect to pay anywhere from $200 to $500 for parts and labor. However, it's important to note that the actual costs can vary based on factors such as your location, the make and model of your vehicle, and the rates of the auto repair shop you choose. Be sure to check with local shops for a more accurate estimate.

Need more information about the B1012 Infiniti code?

Need more information on how to fix the B1012 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1012 Infiniti 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 B1012 Infiniti Code

1. What are the common symptoms of OBDII code B1012 in Infiniti vehicles?

- Common symptoms of OBDII code B1012 in Infiniti vehicles include the airbag warning light being illuminated on the dashboard and potential issues with the airbag system.

2. What is the most common cause of OBDII code B1012 in Infiniti cars?

- The most common cause of OBDII code B1012 in Infiniti cars is a malfunction or failure of the Diagnosis Sensor Unit (DSU).

3. How can I diagnose the Diagnosis Sensor Unit (DSU) to confirm it is the cause of OBDII code B1012?

- To diagnose the DSU, a professional diagnostic tool compatible with Infiniti vehicles is typically used to retrieve the specific error codes related to the DSU.

4. Can I repair the Diagnosis Sensor Unit (DSU) myself to fix OBDII code B1012?

- Repairing the DSU yourself is not recommended as it may involve advanced diagnostics and specialized tools. It is best to consult a professional mechanic or dealership for proper repair.

5. Are there any tips for preventing OBDII code B1012 in my Infiniti vehicle?

- Regular maintenance and servicing of your vehicle's airbag system can help prevent issues that may trigger OBDII code B1012. It is also important to address any airbag warning lights promptly.

6. How serious is OBDII code B1012 in an Infiniti car?

- OBDII code B1012 related to the Diagnosis Sensor Unit (DSU) is considered a serious issue as it affects the functionality of the airbag system, which is crucial for occupant safety in case of a collision.

7. Can OBDII code B1012 be cleared/reset without fixing the underlying issue?

- While the code can be cleared/reset using a diagnostic tool, it is important to address the root cause (malfunctioning DSU) to ensure the airbag system is functioning properly and the code does not reappear.

8. How much does it cost to repair OBDII code B1012 in an Infiniti vehicle?

- Repair costs for OBDII code B1012 can vary depending on the extent of the issue and the labor rates of the repair shop. It is recommended to get a diagnosis and quote from a trusted mechanic.

9. Can driving with OBDII code B1012 pose any risks?

- Driving with OBDII code B1012 may pose a risk in the event of a collision, as the airbag system may not deploy correctly. It is advisable to address this issue promptly to ensure safety.

10. Is it safe to reset the OBDII code B1012 and continue driving the vehicle?

- It is not recommended to reset the code without addressing the underlying issue, as it may compromise the functionality of the airbag system. It is best to have the DSU diagnosed and repaired before driving the vehicle.

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