AutoCodes – Toyota – B1905 2015 Toyota RAV4

B1905 2015 Toyota RAV4 Code - Short in Front Pretensioner Squib Left Circuit

Quick Answer

The Front Pretensioner Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Left (LH). Common causes include Faulty Front Seat Outer Belt Assembly Left (LH) (Front Pretensioner Squib Left), Front Seat Outer Belt Assembly Left is open or shorted, Front Seat Outer Belt Assembly Left 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: B1905 2015 Toyota RAV4 indicates Short in Front Pretensioner Squib Left Circuit.
Common causes: Common causes include Faulty Front Seat Outer Belt Assembly Left (LH) (Front Pretensioner Squib Left), Front Seat Outer Belt Assembly Left is open or shorted, Front Seat Outer Belt Assembly Left 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 303

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Dec 07, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1905 2015 Toyota RAV4 Description

The Front Pretensioner Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Left (LH). This 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 Front Pretensioner Squib Left Circuit.

OBDII Code B1905 2015 Toyota RAV4 - Short in Front Pretensioner Squib Left Circuit - AutoCodes.com — B1905 2015 Toyota RAV4 Code - Short in Front Pretensioner Squib Left Circuit

What does this mean?

What are the Possible Causes of the DTC B1905 2015 Toyota RAV4?

Faulty Front Seat Outer Belt Assembly Left (LH) (Front Pretensioner Squib Left)
Front Seat Outer Belt Assembly Left is open or shorted
Front Seat Outer Belt Assembly Left poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1905 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 B1905 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 B1905 2015 Toyota RAV4 code?

Need more information on how to fix the B1905 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1905 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 B1905 2015 Toyota RAV4 Code

1. What does the OBDII code B1905 for a 2015 Toyota RAV4 mean?

The code B1905 indicates a "Short in Front Pretensioner Squib Left Circuit" in the vehicle's restraint system.

2. What are the common symptoms of OBDII code B1905 in a 2015 Toyota RAV4?

Common symptoms may include the airbag warning light illuminating on the dashboard, potential non-deployment of the driver's side airbag, and diagnostic trouble codes related to the front pretensioner squib circuit.

3. What could cause the B1905 OBDII code to appear in a 2015 Toyota RAV4?

Possible causes of the B1905 code include a short circuit in the wiring of the front pretensioner squib left circuit, a faulty pretensioner squib, or a poor electrical connection in the system.

4. How serious is the B1905 OBDII code in a 2015 Toyota RAV4?

The B1905 code should be taken seriously as it indicates a potential issue with the driver's side airbag system, which could affect its deployment in the event of a collision.

5. Can I continue driving my 2015 Toyota RAV4 with the B1905 OBDII code present?

It is not advisable to continue driving the vehicle with the B1905 code active, as there may be a risk of the driver's side airbag not deploying properly in case of an accident.

6. How can I diagnose and repair the B1905 OBDII code in my 2015 Toyota RAV4?

Diagnosing and repairing the B1905 code typically involves inspecting the wiring and connections in the front pretensioner squib left circuit, testing the pretensioner squib itself, and addressing any faults found in the system.

7. Can I reset the B1905 OBDII code in my 2015 Toyota RAV4 myself?

While you can clear the code with an OBDII scanner, it is essential to address the underlying issue causing the code to prevent it from returning and ensure the proper functioning of the airbag system.

8. Is it safe to attempt to repair the B1905 OBDII code in a 2015 Toyota RAV4 myself?

Repairing the B1905 code may involve working with the vehicle's airbag system, which can be dangerous if not done correctly. It is recommended to have the issue diagnosed and repaired by a qualified technician.

9. How much does it cost to fix the B1905 OBDII code in a 2015 Toyota RAV4?

The cost of repairing the B1905 code can vary depending on the specific cause of the issue, parts needed, and labor costs. It is advisable to obtain a professional diagnosis to get an accurate estimate.

10. Will fixing the B1905 OBDII code in my 2015 Toyota RAV4 require replacing the airbag system?

Not necessarily. The repair for the B1905 code may involve fixing the wiring, connectors, or replacing the pretensioner squib, depending on the exact cause of the fault.