AutoCodes – Scion – B1622 Scion

B1622 Scion Code - Lost Communication With Side Airbag Sensor Right

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), Faulty Rear Airbag Sensor Right (RH), Faulty Center Airbag Sensor Assembly. 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: B1622 Scion indicates Lost Communication With Side Airbag Sensor Right.
Common causes: Common causes include Faulty Side Airbag Sensor Right (RH), Faulty Rear Airbag Sensor Right (RH), Faulty Center Airbag Sensor Assembly.
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 800

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 May 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1622 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 and Rear 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) is stored when a malfunction is detected for the Side Collision RH circuit (to determine deployment of the Front Seat Side Airbag Assembly RH and Curtain Shield Airbag Assembly RH).

OBDII Code B1622 Scion - Lost Communication With Side Airbag Sensor Right - AutoCodes.com — B1622 Scion Code - Lost Communication With Side Airbag Sensor Right

What does this mean?

What are the Possible Causes of the DTC B1622 Scion?

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

How to Fix the DTC B1622 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 B1622 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 B1622 Scion code?

Need more information on how to fix the B1622 Scion code? Get Access to Factory Service Manuals

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Get the B1622 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 B1622 Scion Code

1. What are the common symptoms of OBDII code B1622 in a Scion related to lost communication with the right side airbag sensor?

- Common symptoms include the airbag warning light illuminating on the dashboard, potential non-deployment of the right side airbag during a collision, and diagnostic trouble codes stored in the vehicle's system.

2. What are some possible causes of the B1622 code indicating lost communication with the right side airbag sensor in a Scion?

- Possible causes include damaged wiring or connectors leading to the right side airbag sensor, a faulty airbag sensor itself, or issues with the vehicle's airbag control module.

3. How can I diagnose the source of the communication loss with the right side airbag sensor in my Scion?

- Diagnosing the issue may involve performing a thorough visual inspection of the wiring and connectors, checking for loose connections, using a scan tool to retrieve specific error codes, and conducting electrical tests to pinpoint the problem area.

4. Is it safe to continue driving my Scion with the B1622 code related to the right side airbag sensor communication issue?

- It is not recommended to drive the vehicle with unresolved airbag system faults, as this may compromise occupant safety in the event of a collision. Prompt diagnosis and repair are crucial.

5. Can I reset the B1622 code in my Scion without addressing the communication problem with the right side airbag sensor?

- While you can clear the code temporarily, it will likely reappear until the underlying issue is fixed. Ignoring the problem may result in the airbag system not functioning correctly when needed.

6. Are there any DIY repair tips for addressing the B1622 code indicating lost communication with the right side airbag sensor in a Scion?

- DIY enthusiasts with automotive repair experience may attempt to inspect and repair wiring connections, replace damaged components, or reset the system using a scan tool. However, complex airbag system repairs are best left to professionals.

7. How much does it typically cost to repair the B1622 code related to the right side airbag sensor in a Scion?

- The cost of repair can vary depending on the exact cause of the issue, labor rates, and replacement parts needed. It's advisable to obtain quotes from reputable auto repair shops or dealerships for an accurate estimate.

8. Can a faulty battery or alternator cause the B1622 code to appear in a Scion?

- While a weak or failing battery can sometimes trigger communication errors in vehicle systems, the B1622 code specifically relates to issues with the right side airbag sensor circuit. It's essential to focus on diagnosing the airbag system components first.

9. Is it possible to prevent the B1622 code related to the right side airbag sensor communication problem in a Scion?

- Regular maintenance, including checking wiring integrity, keeping connectors clean and secure, and addressing any airbag warning lights promptly, can help prevent such issues. However, some faults may occur unexpectedly due to various factors.

10. Can a professional automotive technician help me diagnose and repair the B1622 code in my Scion?

- Yes, seeking assistance from a qualified technician or dealership specializing in Scion vehicles is recommended for accurate diagnosis and proper repair of the B1622 code indicating lost communication with the right side airbag sensor.