B1653 Toyota 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 Toyota 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 Toyota Description
What are the Possible Causes of the DTC B1653 Toyota?
- 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 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 B1653 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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Information for Specific Toyota Models
- B1653 2013 Toyota RAV4 — Seat Position Airbag Sensor Circuit Malfunction
- B1653 2014 Toyota RAV4 — Seat Position Airbag Sensor Circuit Malfunction
- B1653 2015 Toyota RAV4 — Seat Position Airbag Sensor Circuit Malfunction
- B1653 2016 Toyota RAV4 — Seat Position Airbag Sensor Circuit Malfunction
- B1653 2017 Toyota RAV4 — Seat Position Airbag Sensor Circuit Malfunction
- B1653 2018 Toyota RAV4 — 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 Toyota Code
1. What does the OBDII code B1653 mean on a Toyota?
B1653 indicates a malfunction in the seat position airbag sensor circuit, which may affect the proper deployment of the airbag system.
2. What are the common symptoms of code B1653 in a Toyota?
Common symptoms include an illuminated airbag warning light, failure of the airbags to deploy correctly in a collision, and possibly diagnostic trouble codes stored in the vehicle's computer.
3. What causes the B1653 code to appear in a Toyota?
The code can be caused by a faulty seat position airbag sensor, damaged wiring or connectors in the sensor circuit, or a malfunction in the airbag control module.
4. Is it safe to drive with a B1653 code on a Toyota?
Driving with this code may compromise the airbag system's functionality, increasing the risk of injury in an accident. It's recommended to address the issue promptly.
5. How can I diagnose the B1653 code on my Toyota?
Diagnosis typically involves using a scan tool to confirm the code, inspecting the seat position airbag sensor, and checking the associated wiring and connectors for damage or loose connections.
6. Can I fix the B1653 code on my Toyota myself?
If you're experienced with automotive electronics, you can inspect and replace damaged wiring or connectors. However, replacing the airbag sensor or control module may require professional tools and expertise.
7. How much does it cost to repair a B1653 code on a Toyota?
Repair costs vary depending on the issue, but replacing a seat position airbag sensor can cost $200-$500, including parts and labor. Wiring repairs may cost less.
8. Will clearing the B1653 code make the airbag system work again?
Clearing the code without addressing the root issue will not fix the problem, and the airbag system may still malfunction.
9. Can a dead battery cause the B1653 code in a Toyota?
A dead or weak battery is unlikely to directly cause this code, but voltage issues during startup could potentially trigger it. Check the battery as part of a broader diagnosis.
10. Do I need to recalibrate the airbag system after fixing the B1653 code?
Yes, after repairs, the airbag system may need to be recalibrated or reset using a scan tool to ensure proper functionality.
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