AutoCodes – Scion – B1620 Scion

B1620 Scion Code - Side Airbag Sensor Right Circuit Malfunction

Quick Answer

The Side Collision Sensor Right (RH) circuit (to determine deployment of the Front Seat Side Airbag Assembly RH and Curtain Shield Airbag Assembly RH) is composed of the Center Airbag Sensor Assembly, Side Airbag Sensor RH and Rear Airbag Sensor RH. Common causes include Faulty Side Airbag Sensor Right (RH), Side Airbag Sensor Right (RH) harness is open or shorted, Side Airbag Sensor 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: B1620 Scion indicates Side Airbag Sensor Right Circuit Malfunction.
Common causes: Common causes include Faulty Side Airbag Sensor Right (RH), Side Airbag Sensor Right (RH) harness is open or shorted, Side Airbag Sensor 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.

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Code Popularity 2,379

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 May 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1620 Scion Description

The Side Collision Sensor Right (RH) circuit (to determine deployment of the Front Seat Side Airbag Assembly RH and Curtain Shield Airbag Assembly RH) is composed of the Center Airbag Sensor Assembly, Side Airbag Sensor RH and Rear Airbag Sensor RH. The Side Airbag Sensor RH detect impacts to the vehicle and send signals to the Center Airbag Sensor Assembly to determine if the airbag should be deployed. The Diagnostic Trouble Code (DTC) B1620 is stored when a malfunction is detected in the Side Airbag Sensor RH.

OBDII Code B1620 Scion - Side Airbag Sensor Right Circuit Malfunction - AutoCodes.com — B1620 Scion Code - Side Airbag Sensor Right Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B1620 Scion?

Faulty Side Airbag Sensor Right (RH)
Side Airbag Sensor Right (RH) harness is open or shorted
Side Airbag Sensor Right (RH) circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1620 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 B1620 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 B1620 Scion code?

Need more information on how to fix the B1620 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1620 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 B1620 Scion Code

1. What are the common symptoms of OBDII code B1620 in a Scion related to the Side Airbag Sensor Right Circuit Malfunction?

- Common symptoms include the airbag warning light illuminating on the dashboard, potential loss of functionality of the right side airbag system, and diagnostic trouble codes related to the side airbag sensor circuit.

2. What are some possible causes of the B1620 code indicating a Side Airbag Sensor Right Circuit Malfunction in a Scion?

- Potential causes may include a faulty side airbag sensor on the right side, damaged wiring or connectors in the airbag sensor circuit, or issues with the airbag control module.

3. How can I diagnose the B1620 code in my Scion if I suspect a Side Airbag Sensor Right Circuit Malfunction?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, conducting a visual inspection of the airbag sensor and its connections, and performing electrical testing to pinpoint the issue.

4. Is it safe to drive my Scion with the B1620 code triggered for a Side Airbag Sensor Right Circuit Malfunction?

- It is not recommended to drive the vehicle with an active airbag system fault code, as it can compromise the effectiveness of the airbag system in the event of a collision.

5. How can I repair the B1620 code indicating a Side Airbag Sensor Right Circuit Malfunction in my Scion?

- Repair methods may involve replacing the faulty side airbag sensor, repairing damaged wiring or connectors, resetting the airbag system, or reprogramming the airbag control module as needed.

6. Can I reset the B1620 code related to a Side Airbag Sensor Right Circuit Malfunction in my Scion without fixing the issue?

- While you can clear the trouble code using an OBDII scanner, it is important to address the underlying problem causing the code to prevent potential safety risks and ensure the airbag system functions properly.

7. How much does it typically cost to fix the B1620 code for a Side Airbag Sensor Right Circuit Malfunction in a Scion?

- Repair costs can vary depending on the exact cause of the issue, but expenses may include parts replacement, labor charges, and diagnostic fees. It's recommended to consult with a qualified mechanic for an accurate estimate.

8. Are there any recalls or service bulletins related to the B1620 code and the Side Airbag Sensor Right Circuit Malfunction in Scion vehicles?

- It's advisable to check with the manufacturer or authorized dealerships for any relevant recalls or service bulletins addressing this specific OBDII code to ensure proper resolution of the issue.

9. Can a DIY enthusiast with some automotive knowledge fix the B1620 code for a Side Airbag Sensor Right Circuit Malfunction in a Scion?

- While some basic troubleshooting and repairs may be possible for experienced DIYers, dealing with airbag systems requires specialized knowledge and tools. For safety reasons, it's best to consult a professional technician for this type of issue.

10. How often does the B1620 code occur in Scion vehicles, indicating a Side Airbag Sensor Right Circuit Malfunction?

- The occurrence of this specific code can vary among Scion models and individual vehicles. If you encounter this code, it's essential to address it promptly to maintain the safety of your vehicle's airbag system.