B1620 Toyota 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 Toyota 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.
Code B1620 Toyota Description
What are the Possible Causes of the DTC B1620 Toyota?
- 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 Toyota?
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 Toyota 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.
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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.
Frequently Asked Questions about B1620 Toyota Code
1. What are the common symptoms of OBDII code B1620 in a Toyota related to the Side Airbag Sensor Right Circuit Malfunction?
Common symptoms include the airbag warning light illuminating on the dashboard, the side airbag system being disabled, and potential issues with the right side airbag deployment in case of an accident.
2. What are the possible causes of the OBDII code B1620 in a Toyota indicating a Side Airbag Sensor Right Circuit Malfunction?
Potential causes include a faulty side airbag sensor on the right side, damaged wiring or connectors in the circuit, a malfunctioning airbag control module, or issues with the airbag deployment system.
3. How serious is the OBDII code B1620 indicating a Side Airbag Sensor Right Circuit Malfunction in a Toyota?
This code signifies a problem with the right side airbag sensor circuit, which could affect the proper deployment of the airbag in case of a collision. It is crucial to address this issue promptly to ensure the safety features of the vehicle are fully functional.
4. Can I continue driving my Toyota with the OBDII code B1620 related to the Side Airbag Sensor Right Circuit Malfunction?
It is not recommended to drive the vehicle with an active airbag fault code, as it may compromise the effectiveness of the airbag system in the event of an accident. It is advisable to have the issue diagnosed and repaired as soon as possible.
5. How can I diagnose and repair the OBDII code B1620 in my Toyota indicating a Side Airbag Sensor Right Circuit Malfunction?
Diagnosis typically involves using a scan tool to retrieve the specific fault code and then inspecting the side airbag sensor, wiring, connectors, and airbag control module for any issues. Repair may involve replacing a faulty sensor, repairing damaged wiring, or addressing any other identified problems.
6. Is it possible to reset the OBDII code B1620 for the Side Airbag Sensor Right Circuit Malfunction in a Toyota without fixing the underlying issue?
Resetting the fault code without addressing the root cause will likely result in the code reappearing once the system detects the ongoing problem. It is essential to diagnose and repair the issue to ensure the airbag system functions correctly.
7. How much does it typically cost to repair the OBDII code B1620 related to the Side Airbag Sensor Right Circuit Malfunction in a Toyota?
The cost of repair can vary depending on the specific cause of the issue, the parts needed for replacement, and labor costs. It is advisable to consult a professional mechanic for an accurate diagnosis and cost estimate.
8. Are there any safety precautions I should take if the OBDII code B1620 indicating a Side Airbag Sensor Right Circuit Malfunction is present in my Toyota?
It is crucial to drive cautiously and be aware that the airbag system may not deploy correctly in the event of a collision. Avoid any aggressive driving maneuvers or situations that may increase the risk of an accident until the issue is resolved.
9. Can a DIY enthusiast with automotive experience repair the OBDII code B1620 related to the Side Airbag Sensor Right Circuit Malfunction in a Toyota?
While some basic troubleshooting steps can be performed by individuals with automotive experience, dealing with airbag systems can be complex and dangerous. It is recommended to seek professional assistance to ensure the repair is done correctly and safely.
10. How long does it typically take to repair the OBDII code B1620 for the Side Airbag Sensor Right Circuit Malfunction in a Toyota?
The repair time can vary based on the specific cause of the issue and the extent of the repair needed. Simple fixes like replacing a sensor or repairing wiring may take a few hours, while more complex issues could require additional time for diagnosis and repair.
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