AutoCodes – Scion – B1920 Scion

B1920 Scion Code - Short In Rear Pretensioner Squib RH Circuit

Quick Answer

The Rear Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Rear Seat Outer Belt Assembly Right (RH). Common causes include Faulty Rear Seat Outer Belt Assembly Right (RH) (Rear Pretensioner Squib RH), Rear Seat Outer Belt Assembly Right (RH) harness is open or shorted, Rear Seat Outer Belt Assembly Right (RH) 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: B1920 Scion indicates Short In Rear Pretensioner Squib RH Circuit.
Common causes: Common causes include Faulty Rear Seat Outer Belt Assembly Right (RH) (Rear Pretensioner Squib RH), Rear Seat Outer Belt Assembly Right (RH) harness is open or shorted, Rear Seat Outer Belt Assembly Right (RH) 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 697

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 Jul 28, 2019

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 B1920 Scion Description

The Rear Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Rear Seat Outer Belt Assembly Right (RH). This circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in the Rear Pretensioner Squib RH Circuit.

OBDII Code B1920 Scion - Short In Rear Pretensioner Squib RH Circuit - AutoCodes.com — B1920 Scion Code - Short In Rear Pretensioner Squib RH Circuit

What does this mean?

What are the Possible Causes of the DTC B1920 Scion?

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

How to Fix the DTC B1920 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 B1920 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 B1920 Scion code?

Need more information on how to fix the B1920 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1920 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 B1920 Scion Code

1. What are the common symptoms of OBDII code B1920 in a Scion related to a short in the rear pretensioner squib RH circuit?

The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the deployment of the rear right-hand side seatbelt pretensioner in the event of a collision.

2. What are the possible causes of OBDII code B1920 in a Scion indicating a short in the rear pretensioner squib RH circuit?

Possible causes can include damaged wiring or connectors in the rear right-hand side seatbelt pretensioner circuit, a faulty pretensioner squib module, or a malfunctioning airbag control module.

3. How can I diagnose the OBDII code B1920 in my Scion for a short in the rear pretensioner squib RH circuit?

Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault code, conducting a visual inspection of the wiring and connectors in the rear right-hand side seatbelt pretensioner circuit, and testing the components for proper functionality.

4. Is it safe to drive my Scion with OBDII code B1920 indicating a short in the rear pretensioner squib RH circuit?

It is not recommended to drive the vehicle with this code present, as it can compromise the proper functioning of the rear right-hand side seatbelt pretensioner in the event of a collision.

5. Can I reset the OBDII code B1920 in my Scion related to a short in the rear pretensioner squib RH circuit?

Resetting the code may temporarily clear the warning light, but it will likely reappear until the underlying issue causing the short in the rear pretensioner squib RH circuit is properly diagnosed and repaired.

6. How can I repair OBDII code B1920 in my Scion for a short in the rear pretensioner squib RH circuit?

Repair options may include repairing or replacing damaged wiring or connectors, replacing the rear right-hand side seatbelt pretensioner squib module, or addressing any issues with the airbag control module.

7. Will fixing OBDII code B1920 in my Scion for a short in the rear pretensioner squib RH circuit be costly?

The cost of repair can vary depending on the exact cause of the issue and whether any components need to be replaced. It is recommended to consult with a professional mechanic for an accurate estimate.

8. Are there any safety concerns associated with OBDII code B1920 in a Scion indicating a short in the rear pretensioner squib RH circuit?

Yes, unresolved issues related to the rear right-hand side seatbelt pretensioner can compromise the safety of the vehicle occupants in the event of a collision, as the seatbelt may not function as intended.

9. Can a DIY enthusiast without specialized skills repair OBDII code B1920 in a Scion for a short in the rear pretensioner squib RH circuit?

Due to the safety implications and complexity of airbag systems, it is recommended to seek professional assistance for diagnosing and repairing issues related to airbag fault codes like B1920.

10. How often should I have the airbag system in my Scion inspected to prevent issues like OBDII code B1920 for a short in the rear pretensioner squib RH circuit?

Regular maintenance and inspection of the airbag system, including the seatbelt pretensioners, should be conducted according to the manufacturer's recommended schedule to help prevent issues and ensure proper functionality in case of an accident.