AutoCodes – Toyota – B1943 2017 Toyota RAV4

B1943 2017 Toyota RAV4 Code - Short to Positive in Selectable Force Limiter Squib Right Circuit

Quick Answer

The Selectable Force Limiter 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) (Selectable Force Limiter 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: B1943 2017 Toyota RAV4 indicates Short to Positive in Selectable Force Limiter Squib Right Circuit.
Common causes: Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Selectable Force Limiter 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 189

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 B1943 2017 Toyota RAV4 Description

The Selectable Force Limiter 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 Selectable Force Limiter Squib Right Circuit.

OBDII Code B1943 2017 Toyota RAV4 - Short to Positive in Selectable Force Limiter Squib Right Circuit - AutoCodes.com — B1943 2017 Toyota RAV4 Code - Short to Positive in Selectable Force Limiter Squib Right Circuit

What does this mean?

What are the Possible Causes of the DTC B1943 2017 Toyota RAV4?

Faulty Front Seat Outer Belt Assembly Right (RH) (Selectable Force Limiter 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 B1943 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 B1943 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 B1943 2017 Toyota RAV4 code?

Need more information on how to fix the B1943 2017 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1943 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 B1943 2017 Toyota RAV4 Code

1. What are common symptoms of OBDII code B1943 in a 2017 Toyota RAV4?

- Common symptoms include the airbag warning light illuminating on the dashboard and possible issues with the airbag system's functionality.

2. What does the OBDII code B1943 "Short to Positive in Selectable Force Limiter Squib Right Circuit" mean?

- This code indicates a short circuit to positive in the selectable force limiter squib on the right side of the airbag system in the vehicle.

3. What are the possible causes of OBDII code B1943 in a 2017 Toyota RAV4?

- Possible causes include damaged wiring or connectors in the airbag system, a faulty selectable force limiter squib, or a malfunctioning airbag control module.

4. How can I diagnose the issue related to OBDII code B1943 in my 2017 Toyota RAV4?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the airbag system's wiring and connectors, and testing the components involved in the selectable force limiter squib circuit.

5. Can I drive my 2017 Toyota RAV4 with OBDII code B1943?

- It is not recommended to drive the vehicle with an active airbag system fault code like B1943, as it could affect the proper deployment of the airbags in the event of a collision.

6. How can I repair OBDII code B1943 in my 2017 Toyota RAV4?

- Repairing this code may involve repairing or replacing damaged wiring or connectors, replacing the faulty selectable force limiter squib, or reprogramming the airbag control module as needed.

7. Is it safe to reset the OBDII code B1943 in my 2017 Toyota RAV4 without fixing the underlying issue?

- It is not recommended to simply reset the code without addressing the root cause, as the airbag system may still be compromised and not function properly in an emergency situation.

8. Do I need special tools to repair OBDII code B1943 in my 2017 Toyota RAV4?

- Repairing this code may require specialized tools like a scan tool for diagnostics, wiring diagrams for the airbag system, and potentially special tools for accessing and working on the airbag components.

9. Can a DIY enthusiast fix OBDII code B1943 in a 2017 Toyota RAV4?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, working on the airbag system and addressing OBDII code B1943 may require professional expertise due to safety considerations.

10. How can I prevent OBDII code B1943 from occurring in my 2017 Toyota RAV4 in the future?

- Regular maintenance, avoiding physical damage to the airbag system components, and addressing any warning signs promptly can help prevent the occurrence of OBDII code B1943 in the future.