B1059 Code - Air Bag Sensor Unit
Quick Answer
The B1059 diagnostic trouble code refers to an issue with the airbag sensor unit in the vehicle. Common causes include Faulty airbag sensor unit, Wiring issues or electrical faults, Corrosion or damage to sensor connectors. 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 indicates Air Bag Sensor Unit.
- Common causes
- Common causes include Faulty airbag sensor unit, Wiring issues or electrical faults, Corrosion or damage to sensor connectors.
- 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 B1059 Description
The B1059 diagnostic trouble code refers to an issue with the airbag sensor unit in the vehicle. The airbag sensor unit is a crucial component of the vehicle's safety system, responsible for detecting impacts and deploying airbags in the event of a collision. When this code is triggered, it indicates a malfunction or fault in the sensor unit, which could potentially compromise the effectiveness of the airbags in protecting the occupants in a crash. This can pose a serious safety risk and should be addressed promptly.
Common Causes of B1059
- Faulty airbag sensor unit
- Wiring issues or electrical faults
- Corrosion or damage to sensor connectors
- Impact or collision that damaged the sensor unit
- Software or calibration issues with the sensor unit
Symptoms of B1059
- Airbag warning light illuminated on the dashboard
- Airbags may not deploy in a collision
- Intermittent or erratic airbag deployment
- Loss of communication with the airbag sensor unit
- Fault codes related to the airbag system stored in the vehicle's computer
How to Fix B1059
- Diagnose the issue using a scan tool to retrieve the specific fault code and identify the problem with the airbag sensor unit.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
- Test the airbag sensor unit for proper functionality and communication with the vehicle's computer.
- Replace the airbag sensor unit if it is found to be faulty or damaged.
- Clear any fault codes from the vehicle's computer and test the airbag system to ensure proper operation.
Cost to Fix B1059
The cost of repairing the airbag sensor unit can vary depending on the make and model of the vehicle, as well as the extent of the damage and the specific parts needed for the repair. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it is recommended to consult with a professional mechanic or auto repair shop for a more accurate estimate based on the specific circumstances of the vehicle.
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Code B1059 Information for Specific Makes
- B1059 Acura — Relay Control Module Lost Communication With Door Multiplex Control Unit
- B1059 Honda — Relay Control Module Lost Communication With Door Multiplex Control Unit
- B1059 Infiniti — Air Bag Sensor Unit
- B1059 Nissan — Air Bag Sensor Unit
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.
Frequently Asked Questions about B1059 Code
What does OBDII code B1059 mean?
Code B1059 refers to an issue with the airbag sensor unit, indicating a malfunction that could compromise the airbag system's functionality.
What are common symptoms of code B1059?
Symptoms include an illuminated airbag warning light, failure of airbags to deploy in a collision, and potential error messages related to the airbag system.
What causes code B1059 to appear?
Common causes include a faulty airbag sensor unit, damaged wiring or connectors, water or moisture intrusion, or a short circuit within the airbag system.
Can I drive my vehicle with code B1059?
It is unsafe to drive with this code active as the airbag system may not function properly during an accident, compromising occupant safety.
How is code B1059 diagnosed?
A mechanic will use an OBDII scanner to confirm the code, inspect the airbag sensor unit, check wiring and connectors, and test the system for electrical faults.
How do you fix code B1059?
Repairs may involve replacing the airbag sensor unit, repairing damaged wiring or connectors, clearing corrosion, or resetting the airbag system with a professional-grade scanner.
Do I need to replace the airbag sensor unit for code B1059?
Not always; the issue could be related to wiring or connectors. A proper diagnosis is necessary to determine if replacement is required.
Can code B1059 be cleared without repairs?
Clearing the code without addressing the underlying issue may temporarily turn off the warning light, but the problem will likely return and compromise safety.
How much does it cost to fix code B1059?
Repair costs vary depending on the cause, ranging from $100 for minor wiring repairs to over $500 for replacing the airbag sensor unit.
Is code B1059 covered under warranty?
In some cases, airbag system repairs may be covered under the vehicle's warranty, especially if the issue is due to a manufacturing defect. Check with your manufacturer or dealer.
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