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B1152 Infiniti Code - Left Side Curtain Air Bag Module Short

Quick Answer

The B1152 code for Infiniti vehicles indicates a problem with the left side curtain airbag module, specifically a short circuit. Common causes include Wiring issues or damage to the left side curtain airbag module, Faulty airbag module sensor, Corrosion or poor connections in the electrical system. 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
B1152 Infiniti indicates Left Side Curtain Air Bag Module Short.
Common causes
Common causes include Wiring issues or damage to the left side curtain airbag module, Faulty airbag module sensor, Corrosion or poor connections in the electrical system.
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 17, 2024
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Code B1152 Infiniti Description

The B1152 code for Infiniti vehicles indicates a problem with the left side curtain airbag module, specifically a short circuit. The left side curtain airbag is an important safety feature designed to deploy in the event of a side impact or rollover to protect occupants from injury. A short circuit in the module can prevent the airbag from deploying properly or at all, compromising the safety of the vehicle's occupants in the event of a collision.

OBDII Code B1152 Infiniti - Left Side Curtain Air Bag Module Short
B1152 Infiniti Code - Left Side Curtain Air Bag Module Short

Common Causes of B1152 Infiniti

  1. Wiring issues or damage to the left side curtain airbag module.
  2. Faulty airbag module sensor.
  3. Corrosion or poor connections in the electrical system.
  4. Impact or collision that damaged the airbag module.
  5. Manufacturing defect in the airbag module.

Symptoms of B1152 Infiniti

  1. Airbag warning light illuminated on the dashboard.
  2. Inability to deploy the left side curtain airbag in the event of a collision.
  3. Diagnostic trouble code B1152 stored in the vehicle's computer system.
  4. Loss of confidence in the vehicle's safety features.

How to Fix B1152 Infiniti

  1. Begin by disconnecting the vehicle's battery to prevent accidental deployment of the airbag.
  2. Locate and inspect the wiring and connections to the left side curtain airbag module for any damage or corrosion.
  3. Test the airbag module sensor to determine if it is functioning correctly.
  4. Replace any damaged wiring, connections, or the airbag module itself as needed.
  5. Clear the diagnostic trouble code from the vehicle's computer system and test the airbag system to ensure proper functionality.

Cost to Fix B1152 Infiniti

The cost of repairing a left side curtain airbag module short circuit can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the parts for this repair can range from $200 to $600, while labor costs can add an additional $100 to $300. Overall, the total repair cost for this issue could be between $300 and $900. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the repair shop. It is advisable to consult with a qualified mechanic for a more accurate cost estimate.

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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 B1152 Infiniti Code

1. What does the OBDII code B1152 mean for an Infiniti?

The code B1152 indicates a short circuit issue in the left side curtain airbag module or its wiring.

2. What are the common symptoms of code B1152 in an Infiniti?

Common symptoms include the airbag warning light staying illuminated and potentially no deployment of the left side curtain airbag in an accident.

3. What causes the B1152 code to appear?

The code is typically caused by damaged wiring, a faulty left side curtain airbag module, or a short circuit in the airbag system.

4. Is it safe to drive with the B1152 code active?

No, it’s not recommended as the airbag system may not function properly during a collision.

5. How can I diagnose the B1152 code in my Infiniti?

Use an OBDII scanner capable of reading airbag systems to confirm the code, then inspect the wiring and connectors for damage or corrosion.

6. Can I fix the B1152 code myself?

If you have experience with automotive electrical systems, you can check and repair damaged wiring or replace faulty components. Otherwise, seek professional assistance.

7. How much does it cost to repair the B1152 code in an Infiniti?

Costs vary, but repairing wiring issues can range from $100 to $300, while replacing the airbag module could cost $500 or more.

8. Does clearing the code with a scanner fix the problem?

No, clearing the code does not resolve the underlying issue; the problem must be diagnosed and repaired.

9. What tools are needed to troubleshoot the B1152 code?

You’ll need an OBDII scanner, a multimeter to test electrical circuits, and potentially automotive wiring repair tools.

10. Can a discharged battery cause the B1152 code?

While unlikely, a weak or discharged battery could cause erratic signals in the airbag system. Ensure the battery is fully charged before diagnosing further.

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