AutoCodes – Toyota – B1908 2017 Toyota RAV4

B1908 2017 Toyota RAV4 Code - Short to Positive 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: B1908 2017 Toyota RAV4 indicates Short to Positive 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 178

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 B1908 2017 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 B1908 2017 Toyota RAV4 - Short to Positive in Front Pretensioner Squib Left Circuit - AutoCodes.com — B1908 2017 Toyota RAV4 Code - Short to Positive in Front Pretensioner Squib Left Circuit

What does this mean?

What are the Possible Causes of the DTC B1908 2017 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 B1908 2017 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 B1908 2017 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 B1908 2017 Toyota RAV4 code?

Need more information on how to fix the B1908 2017 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1908 2017 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 B1908 2017 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1908 in a 2017 Toyota RAV4?

The common symptoms of OBDII code B1908 include the airbag warning light illuminating on the dashboard and potential issues with the front seatbelt pretensioner system.

2. What does the OBDII code B1908 "Short to Positive in Front Pretensioner Squib Left Circuit" mean for a 2017 Toyota RAV4?

The code indicates a detected short circuit to the positive side in the front pretensioner squib left circuit of the driver's seatbelt system.

3. What are possible causes of the OBDII code B1908 in a 2017 Toyota RAV4?

Possible causes of code B1908 include wiring issues, a faulty pretensioner squib, a malfunctioning airbag control module, or a poor electrical connection.

4. How can I diagnose the OBDII code B1908 in my 2017 Toyota RAV4?

Diagnosing code B1908 may involve visually inspecting the wiring and connections related to the front pretensioner squib left circuit, checking for continuity, and using a diagnostic scanner to retrieve specific fault codes.

5. Is it safe to drive my 2017 Toyota RAV4 with OBDII code B1908 present?

It is not recommended to drive the vehicle with an active B1908 code, as it indicates a potential issue with the driver's seatbelt pretensioner system, which is crucial for occupant safety in the event of a collision.

6. How can I repair OBDII code B1908 in my 2017 Toyota RAV4?

Repairing code B1908 may involve repairing or replacing damaged wiring, addressing any faulty components like the pretensioner squib, ensuring proper electrical connections, and clearing the fault code with a diagnostic tool.

7. Can I reset the OBDII code B1908 in my 2017 Toyota RAV4 without fixing the underlying issue?

While you can clear the fault code temporarily, it will likely reappear if the root cause of the problem, such as a short circuit or faulty component, is not addressed.

8. Are there any safety precautions to consider when working on the front pretensioner squib circuit in a 2017 Toyota RAV4?

When working on the front pretensioner squib circuit, always disconnect the vehicle's battery and wait for at least 3 minutes to allow the system to discharge to avoid accidental airbag deployment.

9. How can I prevent OBDII code B1908 from appearing in my 2017 Toyota RAV4 in the future?

Regularly inspecting the seatbelt pretensioner system, ensuring proper wiring connections, and addressing any warning lights promptly can help prevent the recurrence of code B1908 in the future.

10. Should I attempt to repair OBDII code B1908 in my 2017 Toyota RAV4 myself, or should I seek professional help?

Due to the complexity of the airbag system and safety considerations, it is recommended to have OBDII code B1908 diagnosed and repaired by a qualified automotive technician familiar with airbag systems.