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B1059 Infiniti Code - Air Bag Sensor Unit

Quick Answer

The B1059 code for Infiniti vehicles relates to the Air Bag Sensor Unit. Common causes include Faulty airbag sensor unit, Wiring or electrical issues in the airbag system, Loose connections in the airbag sensor unit. 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
B1059 Infiniti indicates Air Bag Sensor Unit.
Common causes
Common causes include Faulty airbag sensor unit, Wiring or electrical issues in the airbag system, Loose connections in the airbag sensor unit.
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 B1059 Infiniti Description

The B1059 code for Infiniti vehicles relates to the Air Bag Sensor Unit. This code indicates a problem with the airbag system in the vehicle, specifically with the sensor unit that is responsible for detecting impacts and deploying the airbags in the event of a collision. The airbag sensor unit plays a critical role in ensuring the safety of the vehicle's occupants by detecting crash forces and deploying the airbags to protect them from injury.

OBDII Code B1059 Infiniti - Air Bag Sensor Unit
B1059 Infiniti Code - Air Bag Sensor Unit

Common Causes of B1059 Infiniti

  1. Faulty airbag sensor unit
  2. Wiring or electrical issues in the airbag system
  3. Loose connections in the airbag sensor unit
  4. Malfunctioning airbag control module
  5. Impact to the vehicle triggering the airbag system

Symptoms of B1059 Infiniti

  1. Airbag warning light illuminated on the dashboard
  2. Inability to turn off the airbag warning light
  3. Intermittent or erratic airbag deployment
  4. Loss of communication with the airbag sensor unit
  5. Vehicle fails airbag system self-test

How to Fix B1059 Infiniti

  1. Diagnose the specific cause of the B1059 code using a diagnostic scanner to identify the issue with the airbag sensor unit.
  2. Inspect the wiring and connections in the airbag system to ensure there are no loose or damaged components.
  3. Test the airbag sensor unit and control module for proper function and replace any faulty components.
  4. Clear the B1059 code from the vehicle's computer system to reset the airbag system and ensure proper operation.
  5. Perform a thorough test of the airbag system to verify that the issue has been resolved and that the airbags deploy correctly in a controlled environment.

Cost to Fix B1059 Infiniti

The typical repair costs for addressing the B1059 code for an Infiniti vehicle can range from $200 to $600, depending on the specific cause of the issue and the parts needed for repair. This estimate includes parts and labor, but it is important to note that prices can vary based on location, vehicle make and model, and the labor rates of the auto repair shop. It is advisable to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate based on the specific circumstances of the vehicle.

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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 B1059 Infiniti Code

1. What does the OBDII code B1059 Infiniti indicate?

The B1059 code for an Infiniti vehicle indicates a malfunction in the airbag sensor unit. This could mean that the airbag sensor is not functioning properly or there is an issue in the sensor circuit.

2. What are common symptoms of the B1059 code in an Infiniti?

Common symptoms include the airbag warning light illuminating on the dashboard, possible non-deployment of airbags in case of an accident, and in some cases, other related diagnostic trouble codes may also be triggered.

3. What causes the B1059 code to appear on an Infiniti?

Causes might include a defective airbag sensor, damaged wiring or connectors in the airbag sensor circuit, or issues with the airbag module itself.

4. How can I diagnose the B1059 code in my Infiniti?

Diagnosis should start with a scan using a suitable OBDII scanner to confirm the presence of the code. Inspect the airbag sensor and its connections for any visible damage or disconnections. It may also be necessary to check the wiring harness for shorts or opens with a multimeter.

5. What steps should be taken to fix the B1059 code in an Infiniti?

Repairing the B1059 code may involve replacing the faulty airbag sensor, repairing or replacing damaged wiring, or potentially replacing the airbag module if it is determined to be faulty. After repairs, the fault codes should be cleared from the system and the vehicle retested to ensure the issue is resolved.

6. Is it safe to drive my Infiniti with the B1059 code active?

Driving with this code is not recommended as the airbag system may not operate correctly in the event of an accident, potentially increasing the risk of injury. It is advisable to have the issue addressed by a professional as soon as possible.

7. Can a low battery cause a B1059 code in an Infiniti?

While a low battery itself is unlikely to directly cause a B1059 code, voltage fluctuations due to a weak or dying battery could potentially contribute to this issue by affecting the airbag sensor’s ability to function properly. Ensure the battery is in good health as part of the diagnostic process.

8. How much does it typically cost to repair the B1059 code in an Infiniti?

The cost of repairing the B1059 code can vary depending on the specific cause. Sensor replacement might cost anywhere from $200 to $400, not including labor charges. If the airbag control module needs replacement, the costs can be significantly higher.

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