AutoCodes – Toyota – B1908 2018 Toyota RAV4

B1908 2018 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 2018 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 221

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 2018 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 2018 Toyota RAV4 - Short to Positive in Front Pretensioner Squib Left Circuit - AutoCodes.com — B1908 2018 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 2018 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 2018 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 2018 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 2018 Toyota RAV4 code?

Need more information on how to fix the B1908 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1908 2018 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 2018 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1908 in a 2018 Toyota RAV4?

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

2. What does the OBDII code B1908 "Short to Positive in Front Pretensioner Squib Left Circuit" mean for a 2018 Toyota RAV4?

This code indicates a potential short circuit to the positive side in the front pretensioner squib left circuit of the seatbelt system in the 2018 Toyota RAV4.

3. What are the possible causes of OBDII code B1908 in a 2018 Toyota RAV4?

Possible causes of OBDII code B1908 include damaged wiring in the front left seatbelt pretensioner system, a faulty seatbelt pretensioner squib, or issues with the airbag control module.

4. How can I diagnose the OBDII code B1908 in my 2018 Toyota RAV4?

Diagnosing OBDII code B1908 involves using a diagnostic scanner to read the fault codes, inspecting the wiring and connectors in the front left seatbelt pretensioner system, and testing the seatbelt pretensioner squib for proper functionality.

5. Can I drive my 2018 Toyota RAV4 with OBDII code B1908?

It is not recommended to drive your 2018 Toyota RAV4 with OBDII code B1908 present, as it indicates potential issues with the seatbelt pretensioner system, which is a crucial safety component in the vehicle.

6. How can I repair OBDII code B1908 in my 2018 Toyota RAV4?

Repairing OBDII code B1908 may involve repairing or replacing damaged wiring in the front left seatbelt pretensioner system, replacing the seatbelt pretensioner squib if faulty, or resetting the airbag control module.

7. Is it safe to reset the OBDII code B1908 in my 2018 Toyota RAV4 without repairing the issue?

It is not recommended to reset the OBDII code B1908 without addressing the underlying issue, as it may compromise the safety of the seatbelt pretensioner system in your 2018 Toyota RAV4.

8. How much does it cost to fix OBDII code B1908 in a 2018 Toyota RAV4?

The cost of fixing OBDII code B1908 in a 2018 Toyota RAV4 can vary depending on the specific cause of the issue, the extent of the repairs needed, and labor costs at your chosen repair shop.

9. Can I prevent OBDII code B1908 from occurring in my 2018 Toyota RAV4?

While some causes of OBDII code B1908 may be unavoidable, regular maintenance and inspection of the seatbelt pretensioner system in your 2018 Toyota RAV4 can help prevent issues that may trigger this fault code.

10. How long does it typically take to repair OBDII code B1908 in a 2018 Toyota RAV4?

The time required to repair OBDII code B1908 in a 2018 Toyota RAV4 can vary based on the diagnostic process, availability of parts, and the complexity of the repairs needed, so it is best to consult with a professional technician for an accurate estimate.