B1635 Scion Code - Rear Airbag Sensor Left Circuit Malfunction
Quick Answer
The B1635 Scion code indicates a malfunction in the rear airbag sensor on the left side of the vehicle. Common causes include Faulty rear airbag sensor, Damaged wiring or connectors leading to the sensor, Corrosion or water damage affecting the sensor. 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
- B1635 Scion indicates Rear Airbag Sensor Left Circuit Malfunction.
- Common causes
- Common causes include Faulty rear airbag sensor, Damaged wiring or connectors leading to the sensor, Corrosion or water damage affecting the sensor.
- 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.
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Code B1635 Scion Description
The B1635 Scion code indicates a malfunction in the rear airbag sensor on the left side of the vehicle. The airbag sensor is a crucial component of the vehicle's safety system, as it is responsible for detecting impacts and deploying the airbags to protect occupants in the event of a collision. When this sensor malfunctions, it can compromise the effectiveness of the airbag system, potentially putting passengers at risk in the event of an accident.
Common Causes of B1635 Scion
- Faulty rear airbag sensor
- Damaged wiring or connectors leading to the sensor
- Corrosion or water damage affecting the sensor
- Issues with the airbag control module
- Impact or collision that damaged the sensor or wiring
Symptoms of B1635 Scion
- Airbag warning light illuminated on the dashboard
- Inconsistent or non-deployment of the airbags during a crash
- Diagnostic trouble codes related to the airbag system
- Intermittent loss of communication with the airbag sensor
How to Fix B1635 Scion
- Begin by diagnosing the specific cause of the malfunction using a scan tool to retrieve the trouble codes and pinpoint the issue.
- Inspect the rear airbag sensor and its wiring for any visible damage, corrosion, or loose connections. Repair or replace any damaged components.
- Test the sensor's functionality using a multimeter to ensure it is sending the correct signals to the airbag control module.
- Clear the trouble codes from the vehicle's computer and reset the airbag system to ensure proper operation.
- Perform a test drive to verify that the airbag warning light is no longer illuminated and that the airbags deploy correctly in a controlled environment.
Cost to Fix B1635 Scion
The cost of repairing a rear airbag sensor left circuit malfunction can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can add an additional $100 to $200 to the total bill. Overall, the total repair cost for this issue typically falls within the range of $200 to $500. It is important to note that these estimates are rough averages and actual costs may vary based on the factors mentioned earlier. It is recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.
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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 B1635 Scion Code
1. What are common symptoms of OBDII code B1635 in a Scion related to the rear airbag sensor left circuit malfunction?
- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the rear airbag system.
2. What are possible causes of the rear airbag sensor left circuit malfunction in a Scion triggering OBDII code B1635?
- Possible causes can include damaged wiring or connectors, a faulty rear airbag sensor, or issues with the airbag control module.
3. How serious is the OBDII code B1635 indicating a rear airbag sensor left circuit malfunction in a Scion?
- This code is related to the proper function of the rear airbag system, so it is crucial to address it promptly to ensure the airbags deploy correctly in case of an accident.
4. Can I continue driving my Scion with the OBDII code B1635 present?
- It is not recommended to drive the vehicle with this code active, as it indicates a malfunction in the rear airbag system that could affect its proper operation.
5. How can I diagnose and repair the rear airbag sensor left circuit malfunction causing OBDII code B1635 in my Scion?
- Diagnosing and repairing this issue typically involves inspecting the wiring, connectors, and sensor for damage, and testing the airbag system components for proper function.
6. Is it possible to reset the OBDII code B1635 in a Scion without fixing the underlying issue?
- While you can clear the code temporarily, it will likely reappear until the root cause of the rear airbag sensor left circuit malfunction is addressed.
7. Are there any safety precautions to take when working on the rear airbag sensor left circuit in a Scion?
- It is crucial to disconnect the vehicle's battery before working on the airbag system to prevent accidental deployment, and to follow proper safety procedures outlined in the service manual.
8. Can a DIY enthusiast with basic automotive knowledge fix the rear airbag sensor left circuit malfunction causing OBDII code B1635 in a Scion?
- While some simple checks like inspecting wiring and connectors can be done by DIYers, diagnosing and repairing airbag system issues often require specialized tools and expertise best left to professionals.
9. How much can I expect to pay to repair the rear airbag sensor left circuit malfunction in my Scion triggering OBDII code B1635?
- Repair costs can vary depending on the specific issue causing the malfunction, but it's advisable to budget for diagnostic fees, parts replacement, and potential labor charges.
10. Will fixing the rear airbag sensor left circuit malfunction causing OBDII code B1635 in my Scion affect the vehicle's safety rating?
- Ensuring the proper function of the airbag system by addressing this issue can help maintain the vehicle's safety rating and ensure the airbags deploy as intended in the event of a collision.
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