AutoCodes – Toyota – B1903 2017 Toyota RAV4

B1903 2017 Toyota RAV4 Code - Short to Positive in Front Pretensioner Squib Right Circuit

Quick Answer

The Front Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Right (RH). Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right), Front Seat Outer Belt Assembly Right harness is open or shorted, Front Seat Outer Belt Assembly 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: B1903 2017 Toyota RAV4 indicates Short to Positive in Front Pretensioner Squib Right Circuit.
Common causes: Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right), Front Seat Outer Belt Assembly Right harness is open or shorted, Front Seat Outer Belt Assembly 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 234

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 03, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1903 2017 Toyota RAV4 Description

The Front Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Right (RH). 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 Right Circuit.

OBDII Code B1903 2017 Toyota RAV4 - Short to Positive in Front Pretensioner Squib Right Circuit - AutoCodes.com — B1903 2017 Toyota RAV4 Code - Short to Positive in Front Pretensioner Squib Right Circuit

What does this mean?

What are the Possible Causes of the DTC B1903 2017 Toyota RAV4?

Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right)
Front Seat Outer Belt Assembly Right harness is open or shorted
Front Seat Outer Belt Assembly Right circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1903 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 B1903 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 B1903 2017 Toyota RAV4 code?

Need more information on how to fix the B1903 2017 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1903 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 B1903 2017 Toyota RAV4 Code

1. What does OBDII code B1903 for a 2017 Toyota RAV4 mean?

The code B1903 indicates a problem with the Short to Positive in Front Pretensioner Squib Right Circuit in the vehicle's restraint system.

2. What are the common symptoms of OBDII code B1903 in a 2017 Toyota RAV4?

Common symptoms may include the airbag warning light illuminating on the dashboard, potential non-deployment of the airbag in the event of an accident, and diagnostic trouble codes related to the front pretensioner squib circuit.

3. What are possible causes for OBDII code B1903 in a 2017 Toyota RAV4?

Potential causes for this code may include damaged wiring or connectors in the front pretensioner squib circuit, a faulty pretensioner squib unit, or a problem with the airbag control module.

4. How can I diagnose the issue related to OBDII code B1903 in my 2017 Toyota RAV4?

Diagnosing the issue may involve using a scan tool to retrieve the specific trouble code, inspecting the wiring and connectors in the front pretensioner squib circuit, and testing the pretensioner squib unit for proper functionality.

5. Can I drive my 2017 Toyota RAV4 with OBDII code B1903 present?

It is not recommended to drive the vehicle with an active airbag system fault code like B1903, as it may compromise the effectiveness of the airbag system in the event of a collision.

6. How can I repair OBDII code B1903 in my 2017 Toyota RAV4?

Repairing the B1903 code may involve repairing or replacing damaged wiring and connectors, replacing the faulty pretensioner squib unit if necessary, and clearing the trouble codes from the vehicle's system.

7. Is it safe to reset the OBDII code B1903 in my 2017 Toyota RAV4 without fixing the underlying issue?

Resetting the code without addressing the underlying problem may temporarily turn off the warning light, but it will not fix the root cause of the issue and could potentially lead to safety risks in the future.

8. How much does it cost to fix OBDII code B1903 in a 2017 Toyota RAV4?

The cost of fixing the B1903 code can vary depending on the specific issue causing the fault, the required parts for repair, and labor costs at a repair shop. It is advisable to consult with a professional technician for an accurate estimate.

9. Can a DIY enthusiast repair OBDII code B1903 in a 2017 Toyota RAV4?

While some DIY enthusiasts may have the skills to diagnose and repair simple electrical issues, dealing with airbag and restraint system components like the pretensioner squib is best left to experienced professionals due to safety considerations.

10. How often does OBDII code B1903 occur in 2017 Toyota RAV4 vehicles?

The occurrence of OBDII code B1903 in 2017 Toyota RAV4 vehicles can vary, but it is not an uncommon issue related to the front pretensioner squib circuit in the airbag system.