AutoCodesInfiniti – B1043 Infiniti

B1043 Infiniti 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
B1043 Infiniti 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 1,588
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 18, 2024
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Code B1043 Infiniti 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 B1043 Infiniti - Diagnosis Sensor Unit - AutoCodes.com
B1043 Infiniti Code - Diagnosis Sensor Unit

What are the Possible Causes of the DTC B1043 Infiniti?

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

How to Fix the DTC B1043 Infiniti?

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 B1043 Infiniti 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 B1043 Infiniti code?

Need more information on how to fix the B1043 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1043 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 B1043 Infiniti Code

1. What are the common symptoms of OBDII code B1043 in an Infiniti related to the Diagnosis Sensor Unit?

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

2. What are the possible causes of OBDII code B1043 in an Infiniti related to the Diagnosis Sensor Unit?

- The code B1043 may be triggered by a malfunction in the Diagnosis Sensor Unit itself, wiring issues, or a faulty airbag control module.

3. How can I diagnose OBDII code B1043 in my Infiniti related to the Diagnosis Sensor Unit?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault code, followed by inspecting the wiring connections and the Diagnosis Sensor Unit for any visible damage.

4. Is it safe to drive my Infiniti with OBDII code B1043 related to the Diagnosis Sensor Unit?

- It is not recommended to drive the vehicle with an active airbag system fault code, as it may compromise the proper functioning of the airbags in the event of an accident.

5. Can I reset OBDII code B1043 in my Infiniti related to the Diagnosis Sensor Unit by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is not a guaranteed fix. It is advised to diagnose and address the root cause of the issue to prevent the code from reoccurring.

6. How much does it typically cost to repair OBDII code B1043 in an Infiniti related to the Diagnosis Sensor Unit?

- The cost of repair can vary depending on the exact cause of the issue. It may range from a simple wiring repair to replacing the Diagnosis Sensor Unit or the airbag control module.

7. Are there any DIY repair tips for addressing OBDII code B1043 in an Infiniti related to the Diagnosis Sensor Unit?

- DIY repair is not recommended for airbag system issues due to safety concerns. It is best to have the problem diagnosed and repaired by a qualified automotive technician.

8. Can a faulty Diagnosis Sensor Unit cause other OBDII codes besides B1043 in an Infiniti?

- Yes, a malfunctioning Diagnosis Sensor Unit can potentially trigger other related airbag system fault codes, leading to a variety of issues with the airbag system.

9. How long does it typically take to repair OBDII code B1043 in an Infiniti related to the Diagnosis Sensor Unit?

- The repair time can vary based on the exact cause of the issue and the availability of parts. It is advisable to consult with a professional technician for an accurate estimate.

10. Will OBDII code B1043 in an Infiniti related to the Diagnosis Sensor Unit affect the vehicle's overall performance?

- While the code may not directly impact the vehicle's drivability, it is crucial to address airbag system faults promptly to ensure the safety features function correctly in case of an accident.

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