B1146 Infiniti Code - Right Side Curtain Air Bag Module Short
Quick Answer
The B1146 Infiniti code indicates a problem with the right side curtain airbag module, specifically a short circuit. Common causes include Damaged wiring or connectors in the right side curtain airbag circuit, A faulty right side curtain airbag module, Corrosion in the airbag system 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
- B1146 Infiniti indicates Right Side Curtain Air Bag Module Short.
- Common causes
- Common causes include Damaged wiring or connectors in the right side curtain airbag circuit, A faulty right side curtain airbag module, Corrosion in the airbag system 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.
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Code B1146 Infiniti Description
The B1146 Infiniti code indicates a problem with the right side curtain airbag module, specifically a short circuit. The curtain airbag is a safety feature designed to protect occupants in the event of a side impact or rollover by deploying from the roof to cover the windows. A short circuit in the module can prevent the airbag from deploying properly in an accident, compromising the safety of the vehicle's occupants.
Common Causes of B1146 Infiniti
- Damaged wiring or connectors in the right side curtain airbag circuit.
- A faulty right side curtain airbag module.
- Corrosion in the airbag system components.
- Impact or collision that damaged the airbag system.
- Electrical issues in the vehicle's wiring harness.
Symptoms of B1146 Infiniti
- Illumination of the airbag warning light on the dashboard.
- Inability to reset the airbag warning light.
- Diagnostic trouble code B1146 stored in the vehicle's computer system.
- Right side curtain airbag not deploying during a crash test.
How to Fix B1146 Infiniti
- Begin by disconnecting the vehicle's battery to prevent accidental deployment of the airbag system.
- Inspect the wiring and connectors in the right side curtain airbag circuit for damage or corrosion.
- Test the right side curtain airbag module for proper functionality or replace it if necessary.
- Clear the diagnostic trouble code from the vehicle's computer system using a diagnostic scanner.
- Reconnect the battery and test the airbag system to ensure proper operation.
Cost to Fix B1146 Infiniti
The typical repair costs for addressing a B1146 Infiniti code can vary depending on the specific cause of the issue. In general, replacing a faulty airbag module or repairing damaged wiring may cost between $200 and $600, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It is advisable to consult with a qualified mechanic or dealership to obtain a more accurate estimate for this repair.
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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.
Frequently Asked Questions about B1146 Infiniti Code
1. What are common symptoms of OBDII code B1146 in an Infiniti related to the right side curtain air bag module short?
The common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the right side curtain airbag deployment.
2. What are possible causes of OBDII code B1146 in an Infiniti indicating a right side curtain air bag module short?
Possible causes include a short circuit in the wiring harness, a malfunctioning airbag control module, or a fault in the right side curtain airbag itself.
3. How can I diagnose the OBDII code B1146 in my Infiniti for a right side curtain air bag module short?
Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, followed by inspecting the right side curtain airbag system for any visible damage or wiring issues.
4. Is it safe to continue driving my Infiniti with OBDII code B1146 indicating a right side curtain air bag module short?
It is not recommended to drive the vehicle with an active airbag fault code, as it may compromise the safety of the airbag system in the event of a collision.
5. How can I repair OBDII code B1146 in my Infiniti related to a right side curtain air bag module short?
Repairing the issue involves addressing the root cause, which may include repairing or replacing damaged wiring, replacing the airbag control module, or replacing the right side curtain airbag itself.
6. Can I reset the OBDII code B1146 in my Infiniti after repairing the right side curtain air bag module short issue?
After repairing the issue, the fault code can be cleared using an OBDII scanner to reset the system and turn off the airbag warning light on the dashboard.
7. How much does it typically cost to repair OBDII code B1146 in an Infiniti for a right side curtain air bag module short?
The cost of repair can vary depending on the specific cause of the issue, but it may involve labor costs for diagnosis and repair, as well as the cost of any replacement parts needed.
8. Are there any safety precautions to take when working on the right side curtain air bag module in an Infiniti to address OBDII code B1146?
It is essential to disconnect the vehicle's battery before working on any airbag components to prevent accidental deployment and ensure safety during repairs.
9. Can a DIY enthusiast with some automotive knowledge repair OBDII code B1146 related to a right side curtain air bag module short in an Infiniti?
While some simple diagnoses and repairs may be possible for DIY enthusiasts, working on airbag systems can be complex and dangerous, so it is recommended to seek professional assistance for such issues.
10. How often should I have the right side curtain air bag system in my Infiniti inspected to prevent issues like OBDII code B1146?
Regular inspections as part of routine maintenance or when experiencing any airbag-related symptoms are recommended to ensure the proper functioning of the airbag system and prevent potential faults like B1146.
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