AutoCodes – Toyota – B1943 2018 Toyota RAV4

B1943 2018 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 2018 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 236

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

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

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1943 2018 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 2018 Toyota RAV4 - Short to Positive in Selectable Force Limiter Squib Right Circuit - AutoCodes.com — B1943 2018 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 2018 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 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 B1943 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 B1943 2018 Toyota RAV4 code?

Need more information on how to fix the B1943 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1943 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 B1943 2018 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1943 in a 2018 Toyota RAV4?

- The common symptoms include an illuminated airbag warning light on the dashboard and potential non-deployment of the right side airbag during a crash.

2. What does the OBDII code B1943 "Short to Positive in Selectable Force Limiter Squib Right Circuit" mean for a 2018 Toyota RAV4?

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

3. What are possible causes of OBDII code B1943 in a 2018 Toyota RAV4?

- The code B1943 can be triggered by issues such as a damaged wiring harness, faulty airbag squib (inflator), or a problem with the airbag control module.

4. How serious is OBDII code B1943 in a 2018 Toyota RAV4?

- This code is considered serious as it relates to the airbag system, which is a critical safety feature in a vehicle. It is important to address this issue promptly to ensure proper airbag functionality in case of an accident.

5. Can OBDII code B1943 be fixed at home, or does it require professional attention for a 2018 Toyota RAV4?

- Repairing OBDII code B1943 often requires specialized tools and expertise, so it is recommended to seek professional assistance to diagnose and fix the issue correctly.

6. How can I troubleshoot OBDII code B1943 in my 2018 Toyota RAV4?

- Troubleshooting steps may include checking the wiring harness for damage, inspecting the airbag squib connections, and testing the airbag control module for any faults.

7. Is it safe to drive my 2018 Toyota RAV4 with OBDII code B1943 present?

- It is not recommended to drive the vehicle with an unresolved airbag system issue indicated by OBDII code B1943, as it may compromise the effectiveness of the airbags in case of an accident.

8. How much does it typically cost to repair OBDII code B1943 in a 2018 Toyota RAV4?

- The cost of repairing OBDII code B1943 can vary depending on the specific cause of the issue and the labor rates of the repair shop. It is advisable to obtain estimates from trusted mechanics or dealerships.

9. Can resetting the OBDII code B1943 in a 2018 Toyota RAV4 make the problem go away?

- Simply resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing OBDII code B1943. It is crucial to diagnose and address the root cause of the problem.

10. How long does it typically take to repair OBDII code B1943 in a 2018 Toyota RAV4?

- The repair time for OBDII code B1943 can vary depending on the complexity of the issue and the availability of parts. In some cases, it may require leaving the vehicle at the repair facility for a day or more for thorough diagnostics and repairs.