B1655 Lexus Code - Driver Side Seat Belt Buckle Switch Circuit Malfunction
Quick Answer
The Driver Side Seat Belt Buckle Switch circuit consists of the Center Airbag Sensor and the Front Seat Inner Belt Left (LH). Common causes include Faulty Front Seat Inner Belt Left (LH), Front Seat Inner Belt Left (LH) harness is open or shorted, Front Seat Inner Belt Left (LH) 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
- B1655 Lexus indicates Driver Side Seat Belt Buckle Switch Circuit Malfunction.
- Common causes
- Common causes include Faulty Front Seat Inner Belt Left (LH), Front Seat Inner Belt Left (LH) harness is open or shorted, Front Seat Inner Belt Left (LH) 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 B1655 Lexus Description
What are the Possible Causes of the DTC B1655 Lexus?
- Faulty Front Seat Inner Belt Left (LH)
- Front Seat Inner Belt Left (LH) harness is open or shorted
- Front Seat Inner Belt Left (LH) circuit poor electrical connection
- Faulty Center Airbag Sensor
How to Fix the DTC B1655 Lexus?
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 B1655 Lexus 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 B1655 Lexus Code
1. What are the common symptoms of OBDII code B1655 in a Lexus related to the driver side seat belt buckle switch circuit malfunction?
- Common symptoms include the airbag warning light staying illuminated, intermittent or non-functional seat belt reminder, and potential issues with the airbag system.
2. What could be the possible causes of the B1655 code in a Lexus indicating a driver side seat belt buckle switch circuit malfunction?
- The code can be triggered by a faulty seat belt buckle switch, damaged wiring or connectors in the circuit, a malfunctioning airbag control module, or a blown fuse related to the system.
3. How can I diagnose the driver side seat belt buckle switch circuit malfunction in a Lexus when OBDII code B1655 is present?
- Diagnosing involves inspecting the seat belt buckle for any physical damage, checking the wiring and connectors for continuity and shorts, and using a diagnostic scanner to retrieve additional fault codes and data.
4. Is it safe to drive a Lexus with the B1655 code indicating a driver side seat belt buckle switch circuit malfunction?
- It is not recommended to drive the vehicle with this code, as it may affect the proper functionality of the seat belt and airbag systems in the event of a collision.
5. Can I reset the B1655 code related to the driver side seat belt buckle switch circuit malfunction in a Lexus by disconnecting the battery?
- Disconnecting the battery may temporarily clear the code, but it is crucial to address the underlying issue causing the fault code to prevent potential safety hazards.
6. How can I repair the driver side seat belt buckle switch circuit malfunction in a Lexus triggering the B1655 code?
- Repair options may include replacing the faulty seat belt buckle switch, repairing or replacing damaged wiring or connectors, resetting the airbag control module, or addressing any blown fuses in the circuit.
7. Will fixing the driver side seat belt buckle switch circuit malfunction causing the B1655 code in a Lexus require specialized tools or professional assistance?
- Depending on the extent of the issue, fixing the problem may require specialized tools such as a diagnostic scanner and basic automotive repair knowledge. In complex cases, seeking professional assistance is recommended.
8. How much can I expect to pay for repairing the driver side seat belt buckle switch circuit malfunction in a Lexus with the B1655 code?
- Repair costs can vary based on the specific issue causing the fault code, the extent of repairs needed, parts replacement, and labor costs. It is advisable to obtain quotes from reputable repair shops.
9. Is the driver side seat belt buckle switch circuit malfunction related to the B1655 code covered under any warranty for Lexus vehicles?
- Depending on the vehicle's warranty status and coverage, the repair for the driver side seat belt buckle switch circuit malfunction may be covered under the manufacturer's warranty or extended warranty plans.
10. How can I prevent the recurrence of the B1655 code indicating a driver side seat belt buckle switch circuit malfunction in my Lexus?
- To prevent the code from reoccurring, it is essential to address any underlying issues promptly, perform regular maintenance checks on the seat belt system, and follow recommended service schedules provided by Lexus.
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