AutoCodesToyota – B1831 2015 Toyota RAV4

B1831 2015 Toyota RAV4 Code - Open in Curtain Shield Squib Right Circuit

Quick Answer

The Curtain Shield Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Curtain Shield Airbag Right (RH). Common causes include Faulty Curtain Shield Airbag Right (RH) (Curtain Shield Squib Right), Curtain Shield Airbag Right harness is open or shorted, Curtain Shield Airbag Right 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
B1831 2015 Toyota RAV4 indicates Open in Curtain Shield Squib Right Circuit.
Common causes
Common causes include Faulty Curtain Shield Airbag Right (RH) (Curtain Shield Squib Right), Curtain Shield Airbag Right harness is open or shorted, Curtain Shield Airbag Right 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 309
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 29, 2022
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Code B1831 2015 Toyota RAV4 Description

The Curtain Shield Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Curtain Shield Airbag Right (RH). The Curtain Shield Airbag is mounted between the front and rear pillars on both the driver and passenger sides. The circuit instructs the Supplemental Restraint System (SRS) to deploy when the deployment conditions are met. The Diagnostic Trouble Code (DTC) is recorded when a malfunction is detected in the Curtain Shield Squib Right Circuit.
OBDII Code B1831 2015 Toyota RAV4 - Open in Curtain Shield Squib Right Circuit - AutoCodes.com
B1831 2015 Toyota RAV4 Code - Open in Curtain Shield Squib Right Circuit

What are the Possible Causes of the DTC B1831 2015 Toyota RAV4?

  • Faulty Curtain Shield Airbag Right (RH) (Curtain Shield Squib Right)
  • Curtain Shield Airbag Right harness is open or shorted
  • Curtain Shield Airbag Right circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1831 2015 Toyota RAV4?

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 B1831 2015 Toyota RAV4 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 B1831 2015 Toyota RAV4 code?

Need more information on how to fix the B1831 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1831 2015 Toyota RAV4 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 B1831 2015 Toyota RAV4 Code

1. What does OBDII code B1831 mean on a 2015 Toyota RAV4?

Code B1831 indicates an "Open in Curtain Shield Squib Right Circuit," meaning there’s an electrical problem in the wiring or connector for the right-side curtain airbag.

2. What are the symptoms of code B1831 in a 2015 Toyota RAV4?

The primary symptom is the illumination of the airbag warning light on the dashboard. The right-side curtain airbag may not deploy in a crash if the issue isn’t resolved.

3. What causes code B1831 in a 2015 Toyota RAV4?

Common causes include damaged wiring, a loose or corroded connector, or a malfunctioning right curtain airbag module.

4. Is it safe to drive with code B1831 on a 2015 Toyota RAV4?

No, it’s not safe, as the airbag system may not function properly during a collision. Prompt diagnosis and repair are recommended.

5. How do you diagnose code B1831 on a 2015 Toyota RAV4?

A technician will use a scan tool to confirm the code, inspect the wiring and connectors for damage or disconnection, and test the curtain airbag circuit for continuity.

6. Can I fix code B1831 on my 2015 Toyota RAV4 myself?

If you have experience with automotive electrical systems, you can inspect and repair wiring or connectors. However, airbag systems are sensitive, and professional repair is often recommended.

7. How much does it cost to fix code B1831 on a 2015 Toyota RAV4?

Repair costs can vary widely, ranging from $100 to $600 or more, depending on whether the issue is a simple wiring repair or a replacement of the airbag module.

8. Can a discharged battery cause code B1831 on a 2015 Toyota RAV4?

A discharged or weak battery is unlikely to directly cause this code, but electrical issues can sometimes trigger airbag faults. It’s worth ensuring the battery is in good condition.

9. Will clearing the code B1831 turn off the airbag light on a 2015 Toyota RAV4?

Clearing the code may temporarily turn off the light, but if the underlying issue isn’t resolved, the code and warning light will likely return.

10. What happens if I ignore code B1831 on my 2015 Toyota RAV4?

Ignoring this code can leave the right-side curtain airbag inoperable, increasing the risk of injury in a side-impact collision. It’s important to address the issue promptly.

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