AutoCodes – Lexus – B1942 Lexus

B1942 Lexus Code - Short to Ground 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: B1942 Lexus indicates Short to Ground 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 345

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 B1942 Lexus 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 B1942 Lexus - Short to Ground in Selectable Force Limiter Squib Right Circuit - AutoCodes.com — B1942 Lexus Code - Short to Ground in Selectable Force Limiter Squib Right Circuit

What does this mean?

What are the Possible Causes of the DTC B1942 Lexus?

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 B1942 Lexus?

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 B1942 Lexus 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 B1942 Lexus code?

Need more information on how to fix the B1942 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1942 Lexus 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 B1942 Lexus Code

1. What are the common symptoms of OBDII code B1942 in a Lexus related to the Selectable Force Limiter Squib Right circuit?

- Common symptoms include the airbag warning light illuminating on the dashboard, non-deployment of the airbags during an impact, and possible illumination of the check engine light.

2. What does the "Short to Ground in Selectable Force Limiter Squib Right Circuit" mean in relation to OBDII code B1942 for a Lexus?

- This code indicates that there is a short circuit to ground in the selectable force limiter squib right circuit of the airbag system in the vehicle.

3. What are the potential causes of OBDII code B1942 in a Lexus indicating a Short to Ground in the Selectable Force Limiter Squib Right circuit?

- Common causes include damaged wiring or connectors in the airbag system, a faulty squib (airbag inflator), or a malfunctioning airbag control module.

4. How can I diagnose OBDII code B1942 in a Lexus related to the Selectable Force Limiter Squib Right circuit?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors in the airbag system, and testing the components for proper functionality.

5. Is it safe to drive a Lexus with OBDII code B1942 indicating a Short to Ground in the Selectable Force Limiter Squib Right circuit?

- It is not recommended to drive the vehicle with this fault code present, as it may result in the airbags not deploying in the event of a collision, compromising occupant safety.

6. How can OBDII code B1942 in a Lexus be repaired if it indicates a Short to Ground in the Selectable Force Limiter Squib Right circuit?

- Repair typically involves locating and repairing the short circuit to ground in the wiring, replacing any damaged components like the squib or control module, and clearing the fault code with a scan tool.

7. Can I reset the OBDII code B1942 in a Lexus related to the Selectable Force Limiter Squib Right circuit myself?

- While you can attempt to clear the fault code with a scan tool, it is important to diagnose and repair the underlying issue causing the fault code to prevent it from reoccurring.

8. Are there any safety precautions to consider when working on OBDII code B1942 in a Lexus indicating a Short to Ground in the Selectable Force Limiter Squib Right circuit?

- Safety precautions include disconnecting the vehicle's battery before working on the airbag system, following proper airbag handling procedures, and avoiding accidental deployment of the airbags.

9. How long does it typically take to repair OBDII code B1942 in a Lexus related to the Selectable Force Limiter Squib Right circuit?

- The repair time can vary depending on the exact cause of the fault, but it may take a few hours to a full day to diagnose, repair, and clear the fault code associated with this issue.

10. Can a DIY enthusiast with some automotive knowledge effectively repair OBDII code B1942 in a Lexus indicating a Short to Ground in the Selectable Force Limiter Squib Right circuit?

- While some DIY enthusiasts may have the skills to diagnose and repair this issue, working on the airbag system requires precision and caution due to safety concerns, so it is recommended to consult a professional technician for proper repair.