B1627 Toyota Code - Lost Communication With Side Airbag Sensor Left
Quick Answer
The Side Collision Sensor Left (LH) circuit (to determine deployment of the Front Seat Side Airbag Assembly LH and Curtain Shield Airbag Assembly LH) is composed of the Center Airbag Sensor Assembly, Side Airbag Sensor LH and Rear Airbag Sensor LH. Common causes include Faulty Side Airbag Sensor Left (LH), Faulty Rear Airbag Sensor Left (LH), 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
- B1627 Toyota indicates Lost Communication With Side Airbag Sensor Left.
- Common causes
- Common causes include Faulty Side Airbag Sensor Left (LH), Faulty Rear Airbag Sensor Left (LH), 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.
Code B1627 Toyota Description
What are the Possible Causes of the DTC B1627 Toyota?
- Faulty Side Airbag Sensor Left (LH)
- Faulty Rear Airbag Sensor Left (LH)
- 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 B1627 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 B1627 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 B1627 Toyota Code
1. What are common symptoms of OBDII code B1627 Toyota (Lost Communication With Side Airbag Sensor Left)?
The common symptoms include the airbag warning light illuminating on the dashboard and possible disabling of the side airbag system.
2. What are the possible causes of OBDII code B1627 Toyota?
Possible causes include a faulty side airbag sensor on the left side, damaged wiring or connectors leading to the sensor, or an issue with the airbag control module.
3. How can I diagnose the issue related to OBDII code B1627 Toyota?
Diagnosing the issue involves using a diagnostic scan tool to retrieve the specific trouble code, inspecting the wiring and connectors for damage, and testing the side airbag sensor for proper functionality.
4. Can I still drive my vehicle with OBDII code B1627 Toyota present?
It is not recommended to drive the vehicle with this code present, as it may indicate a problem with the side airbag system, which is crucial for occupant safety in the event of a side impact collision.
5. How can I repair OBDII code B1627 Toyota?
Repairing the code typically involves addressing the underlying issue causing the communication failure with the side airbag sensor left, which may include replacing the sensor, repairing damaged wiring, or reprogramming the airbag control module.
6. Is it safe to attempt repairs related to OBDII code B1627 Toyota on my own?
It is recommended to have repairs related to airbag systems performed by a qualified technician or at an authorized service center, as improper handling can lead to accidental airbag deployment or other safety hazards.
7. Can a low battery voltage cause OBDII code B1627 Toyota to trigger?
Yes, low battery voltage or an electrical system issue can sometimes lead to communication errors with sensors, including the side airbag sensor left, triggering the B1627 code.
8. How can I prevent OBDII code B1627 Toyota from reoccurring?
Regular maintenance of the vehicle's electrical system, including checking and cleaning connectors and ensuring proper battery voltage, can help prevent communication issues that trigger the B1627 code.
9. Will disconnecting the battery reset OBDII code B1627 Toyota?
Disconnecting the battery may reset the code temporarily, but if the underlying issue causing the communication failure with the side airbag sensor left is not addressed, the code is likely to reoccur.
10. Is OBDII code B1627 Toyota a serious issue?
Yes, OBDII code B1627 Toyota indicating a lost communication with the side airbag sensor left is a serious safety concern that should be addressed promptly to ensure the proper functioning of the vehicle's airbag system in the event of a collision.
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