AutoCodes – Scion – B1940 Scion

B1940 Scion Code - Short 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: B1940 Scion indicates Short 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 241

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
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Code B1940 Scion 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 B1940 Scion - Short in Selectable Force Limiter Squib Right Circuit - AutoCodes.com — B1940 Scion Code - Short in Selectable Force Limiter Squib Right Circuit

What does this mean?

What are the Possible Causes of the DTC B1940 Scion?

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 B1940 Scion?

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 B1940 Scion 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 B1940 Scion code?

Need more information on how to fix the B1940 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1940 Scion 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 B1940 Scion Code

What are the common symptoms of OBDII code B1940 in a Scion related to a short in the Selectable Force Limiter Squib Right circuit?

Common symptoms include the airbag warning light being illuminated on the dashboard, the airbag system being disabled, and potential issues with the airbag deploying in case of an accident.

What are some possible causes of OBDII code B1940 in a Scion indicating a short in the Selectable Force Limiter Squib Right circuit?

Potential causes include damaged wiring or connectors in the Selectable Force Limiter Squib Right circuit, a faulty squib (airbag explosive charge), or a malfunctioning airbag control module.

How can I diagnose OBDII code B1940 in a Scion for a short in the Selectable Force Limiter Squib Right circuit?

To diagnose this issue, you can use an OBDII scanner to read the code, inspect the wiring and connectors in the Selectable Force Limiter Squib Right circuit for damage, and perform continuity tests to pinpoint the location of the short.

What are the repair options for fixing OBDII code B1940 in a Scion due to a short in the Selectable Force Limiter Squib Right circuit?

Repair options may include repairing or replacing damaged wiring or connectors, replacing the squib if faulty, or resetting the airbag control module after the issue has been resolved.

Is it safe to drive a Scion with OBDII code B1940 indicating a short in the Selectable Force Limiter Squib Right circuit?

It is not recommended to drive the vehicle with this issue as the airbag system may not function properly in case of an accident, potentially putting the driver and passengers at risk.

Can I reset the OBDII code B1940 in a Scion myself after fixing the short in the Selectable Force Limiter Squib Right circuit?

Once the underlying issue causing the code has been addressed, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes to clear the system's memory.

Do I need specialized tools to repair OBDII code B1940 in a Scion related to a short in the Selectable Force Limiter Squib Right circuit?

While basic tools like a multimeter and OBDII scanner can be helpful for diagnosis, specialized tools may be required for accessing and repairing components within the airbag system. It is recommended to consult a professional if you are unsure.

Are there any safety precautions to consider when working on OBDII code B1940 in a Scion associated with a short in the Selectable Force Limiter Squib Right circuit?

When working on the airbag system, always disconnect the car battery and wait at least 10 minutes before starting any repairs to prevent accidental airbag deployment. Additionally, follow proper safety procedures outlined in the vehicle's service manual.