B1633 Lexus Code - Rear Airbag Sensor Assembly Right Initialization Incomplete
Quick Answer
The Side Collision Sensor Right (RH) circuit (to determine deployment of the 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 Rear Airbag Sensor Right (RH), Rear Airbag Sensor Right harness is open or shorted, Rear Airbag Sensor Right 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
- B1633 Lexus indicates Rear Airbag Sensor Assembly Right Initialization Incomplete.
- Common causes
- Common causes include Faulty Rear Airbag Sensor Right (RH), Rear Airbag Sensor Right harness is open or shorted, Rear Airbag Sensor Right 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 B1633 Lexus Description
What are the Possible Causes of the DTC B1633 Lexus?
- Faulty Rear Airbag Sensor Right (RH)
- Rear Airbag Sensor Right harness is open or shorted
- Rear Airbag Sensor Right circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1633 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 B1633 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 B1633 Lexus Code
1. What are the common symptoms of OBDII code B1633 in a Lexus, indicating Rear Airbag Sensor Assembly Right Initialization Incomplete?
The common symptoms include the airbag warning light staying illuminated on the dashboard and a potential fault in the right rear airbag sensor system.
2. What can cause the OBDII code B1633 in a Lexus?
The code B1633 usually indicates a fault in the initialization process of the rear airbag sensor assembly on the right side, which can be caused by damaged wiring, a faulty sensor, or a communication issue.
3. How serious is the OBDII code B1633 in a Lexus?
The B1633 code related to Rear Airbag Sensor Assembly Right Initialization Incomplete should be taken seriously, as it indicates a potential problem with the airbag system, which may affect its proper deployment in case of an accident.
4. Can I continue driving my Lexus with the OBDII code B1633 present?
It is not recommended to drive the vehicle with the B1633 code active, as it signifies a potential issue with the right rear airbag sensor assembly that could compromise the functionality of the airbag system.
5. How can I diagnose and repair the OBDII code B1633 in my Lexus?
Diagnosis and repair of the B1633 code should be performed by a qualified technician using specialized diagnostic equipment to pinpoint the exact cause, which may involve inspecting the wiring, sensors, and connections in the right rear airbag system.
6. Is it safe to reset the OBDII code B1633 in my Lexus without fixing the underlying issue?
Resetting the B1633 code without addressing the root cause, such as the incomplete initialization of the rear airbag sensor assembly, may temporarily clear the warning light but will not resolve the safety concern with the airbag system.
7. How much does it typically cost to repair the OBDII code B1633 in a Lexus?
The cost of repairing the B1633 code can vary depending on the specific issue causing the incomplete initialization of the rear airbag sensor assembly. It is recommended to get a professional diagnosis to determine the exact repair cost.
8. Can I replace the rear airbag sensor assembly on my Lexus myself to fix the B1633 code?
Replacing the rear airbag sensor assembly to address the B1633 code requires technical knowledge and specialized tools. It is recommended to have this repair done by a trained professional to ensure proper installation and functionality.
9. Are there any preventive maintenance measures to avoid the OBDII code B1633 in a Lexus?
Regular inspection and maintenance of the airbag system, including checking for loose connections and damaged wiring, can help prevent issues like the B1633 code related to Rear Airbag Sensor Assembly Right Initialization Incomplete.
10. Will fixing the OBDII code B1633 affect the overall safety of my Lexus?
Fixing the B1633 code by addressing the incomplete initialization of the rear airbag sensor assembly will help ensure that the airbag system functions correctly in the event of a collision, thus maintaining the overall safety of your Lexus.
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