B1653 Code - Seat Position Airbag Sensor Circuit Malfunction
Quick Answer
The Seat Position Sensor circuit consists of the Center Airbag Sensor Assembly and the Seat Position Sensor. Common causes include Faulty Seat Position Airbag Sensor, Seat Position Airbag Sensor harness is open or shorted, Seat Position Airbag Sensor 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
- B1653 indicates Seat Position Airbag Sensor Circuit Malfunction.
- Common causes
- Common causes include Faulty Seat Position Airbag Sensor, Seat Position Airbag Sensor harness is open or shorted, Seat Position Airbag Sensor 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 B1653 Description
What are the Possible Causes of the DTC B1653?
- Faulty Seat Position Airbag Sensor
- Seat Position Airbag Sensor harness is open or shorted
- Seat Position Airbag Sensor circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1653?
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 B1653 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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Information for Specific Makes
- B1653 Lexus — Seat Position Airbag Sensor Circuit Malfunction
- B1653 Scion — Seat Position Airbag Sensor Circuit Malfunction
- B1653 Toyota — Seat Position Airbag Sensor Circuit Malfunction
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 B1653 Code
1. What are common symptoms of OBDII code B1653 (Seat Position Airbag Sensor Circuit Malfunction)?
- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system's functionality.
2. What could cause the OBDII code B1653 to trigger?
- The code B1653 may be triggered by a malfunction in the seat position sensor circuit, wiring issues, a faulty seat position sensor, or a problem with the airbag control module.
3. How serious is the OBDII code B1653 (Seat Position Airbag Sensor Circuit Malfunction)?
- This code indicates a malfunction in the airbag system, which could affect the proper deployment of the airbags in the event of a collision. It is important to address this issue promptly.
4. Can I continue driving my vehicle with the OBDII code B1653 present?
- It is not recommended to continue driving with the B1653 code present, as it indicates a potential issue with the airbag system that could compromise safety in the event of an accident.
5. How can I diagnose the cause of the OBDII code B1653?
- Diagnosing the cause of the B1653 code typically involves using a diagnostic scanner to retrieve the specific fault codes, inspecting the seat position sensor and related wiring, and conducting further testing as needed.
6. What are some repair tips for fixing the OBDII code B1653?
- Repair tips may include checking and repairing any damaged wiring, replacing the seat position sensor if faulty, and ensuring proper connections in the airbag system.
7. Is it possible to reset the OBDII code B1653 without fixing the underlying issue?
- While you can clear the code temporarily with a diagnostic scanner, it will likely reappear if the underlying issue is not addressed. It is important to fix the root cause of the problem.
8. How much does it typically cost to repair the OBDII code B1653?
- The cost of repairing the B1653 code can vary depending on the underlying cause, the need for replacement parts, and labor costs. It is advisable to consult a professional for an accurate estimate.
9. Can I fix the OBDII code B1653 myself, or do I need to take it to a mechanic?
- The complexity of diagnosing and repairing the B1653 code may require specialized tools and knowledge. It is recommended to seek assistance from a qualified mechanic or technician.
10. How long does it usually take to repair the OBDII code B1653?
- The time needed to repair the B1653 code can vary based on the specific issue, parts availability, and the mechanic's workload. It is best to consult with the technician performing the repair for an estimate.
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