B1835 Toyota Code - Short in Curtain Shield Squib Left Circuit

Quick Answer

The B1835 diagnostic trouble code (DTC) for Toyota vehicles indicates a short in the curtain shield squib left circuit. Common causes include Wiring harness damage or corrosion, Faulty curtain shield squib, Poor electrical connections. 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

B1835 Toyota indicates Short in Curtain Shield Squib Left Circuit.

Common causes

Common causes include Wiring harness damage or corrosion, Faulty curtain shield squib, Poor electrical connections.

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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
• Comments
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Common Causes of B1835 Toyota

Symptoms of B1835 Toyota

How to Fix B1835 Toyota

Cost to Fix B1835 Toyota

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Information for Specific Toyota Models

• B1835 2013 Toyota RAV4 — Short in Curtain Shield Squib Left Circuit
• B1835 2014 Toyota RAV4 — Short in Curtain Shield Squib Left Circuit
• B1835 2015 Toyota RAV4 — Short in Curtain Shield Squib Left Circuit
• B1835 2016 Toyota RAV4 — Short in Curtain Shield Squib Left Circuit
• B1835 2017 Toyota RAV4 — Short in Curtain Shield Squib Left Circuit
• B1835 2018 Toyota RAV4 — Short in Curtain Shield Squib Left Circuit

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 B1835 Toyota Code

1. What are the common symptoms of OBDII code B1835 in a Toyota related to a short in the curtain shield squib left circuit?

- Common symptoms include the airbag warning light on the dashboard illuminating, non-functional left side curtain airbag, and potential issues with the vehicle's airbag system.

2. What are some possible causes of OBDII code B1835 indicating a short in the curtain shield squib left circuit in a Toyota?

- Potential causes may include a short circuit in the wiring harness, a faulty curtain shield airbag squib, or a malfunction in the airbag control module.

3. How can I diagnose the OBDII code B1835 in my Toyota related to a short in the curtain shield squib left circuit?

- Diagnosing the issue typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the wiring for any visible damage, and testing the curtain shield squib and related components for continuity.

4. Is it safe to drive my Toyota with OBDII code B1835 indicating a short in the curtain shield squib left circuit?

- It is not recommended to drive the vehicle with this code, as it may indicate a problem with the airbag system, potentially compromising passenger safety in the event of an accident.

5. Can I repair OBDII code B1835 related to a short in the curtain shield squib left circuit in my Toyota myself?

- While some basic troubleshooting like checking the wiring connections can be done by DIY enthusiasts, it is advisable to seek professional assistance for diagnosing and repairing airbag system issues due to their critical safety nature.

6. How much does it cost to fix OBDII code B1835 indicating a short in the curtain shield squib left circuit in a Toyota?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, labor charges, and diagnostic fees from a qualified mechanic or dealership.

7. Can resetting the OBDII system clear the B1835 code related to the curtain shield squib left circuit in my Toyota?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the fault is not addressed, the code is likely to reappear after driving cycles or the next diagnostic scan.

8. Are there any safety precautions to take when working on the airbag system to resolve OBDII code B1835 in a Toyota?

- It is crucial to disconnect the vehicle's battery before working on the airbag system to prevent accidental deployment, and always follow manufacturer guidelines and safety procedures to avoid any risks.

9. Will OBDII code B1835 in a Toyota fail a vehicle inspection or emissions test?

- Depending on local regulations, a malfunction in the airbag system indicated by this code may result in a failed safety inspection, as it signifies a potential hazard and affects the vehicle's overall safety compliance.

10. How can I prevent OBDII code B1835 related to a short in the curtain shield squib left circuit from occurring in my Toyota in the future?

- Regular maintenance, avoiding water damage to the airbag system components, and addressing any electrical issues promptly can help prevent issues leading to this specific trouble code.