AutoCodesToyota – B1635 2017 Toyota RAV4

B1635 2017 Toyota RAV4 Code - Rear Airbag Sensor Left Circuit Malfunction

Quick Answer

The Side Airbag Sensor Left (LH) or Rear Airbag Sensor Right (RH) consists of the Diagnostic Circuit, the Lateral Deceleration Sensor, etc. Common causes include Faulty Rear Airbag Sensor Left (LH), Rear Airbag Sensor Left harness is open or shorted, Rear Airbag Sensor Left 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
B1635 2017 Toyota RAV4 indicates Rear Airbag Sensor Left Circuit Malfunction.
Common causes
Common causes include Faulty Rear Airbag Sensor Left (LH), Rear Airbag Sensor Left harness is open or shorted, Rear Airbag Sensor Left 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 251
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Oct 10, 2022
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Code B1635 2017 Toyota RAV4 Description

The Side Airbag Sensor Left (LH) or Rear Airbag Sensor Right (RH) consists of the Diagnostic Circuit, the Lateral Deceleration Sensor, etc. If the Center Airbag Sensor receives signals from the Lateral Deceleration Sensor, it determines whether the Supplemental Restraint System (SRS) should be activated. The Diagnostic Trouble Code (DTC) B1635 is stored when a malfunction is detected in the Rear Airbag Sensor Left circuit.
OBDII Code B1635 2017 Toyota RAV4 - Rear Airbag Sensor Left Circuit Malfunction - AutoCodes.com
B1635 2017 Toyota RAV4 Code - Rear Airbag Sensor Left Circuit Malfunction

What are the Possible Causes of the DTC B1635 2017 Toyota RAV4?

  • Faulty Rear Airbag Sensor Left (LH)
  • Rear Airbag Sensor Left harness is open or shorted
  • Rear Airbag Sensor Left circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1635 2017 Toyota RAV4?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1635 2017 Toyota RAV4 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.

Need more information about the B1635 2017 Toyota RAV4 code?

Need more information on how to fix the B1635 2017 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1635 2017 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

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.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1635 2017 Toyota RAV4 Code

1. What are common symptoms of OBDII code B1635 in a 2017 Toyota RAV4?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the left rear airbag system.

2. What could cause the OBDII code B1635 Rear Airbag Sensor Left Circuit Malfunction in a 2017 Toyota RAV4?

- The code B1635 may be triggered by a faulty rear airbag sensor on the left side, damaged wiring, or a poor connection in the circuit.

3. How serious is the B1635 code in a 2017 Toyota RAV4?

- The B1635 code indicates a malfunction in the left rear airbag sensor circuit, which can affect the proper deployment of the airbag in case of an accident. It is important to address this issue promptly.

4. Can I continue driving my 2017 Toyota RAV4 with the B1635 code present?

- It is not recommended to drive the vehicle with the B1635 code active, as it indicates a potential issue with the left rear airbag sensor circuit, which could affect the overall safety of the vehicle.

5. How can I diagnose and repair the B1635 code in my 2017 Toyota RAV4?

- Diagnosing and repairing the B1635 code typically involves checking the rear airbag sensor, inspecting the wiring for damage, and ensuring all connections are secure. Professional diagnostic tools may be needed.

6. Can I reset the B1635 code in my 2017 Toyota RAV4 on my own?

- While you may be able to clear the code temporarily with an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. Are there any safety precautions I should take when working on the rear airbag sensor circuit in my 2017 Toyota RAV4?

- To ensure safety, it is recommended to disconnect the vehicle's battery before working on the airbag system and to follow proper safety procedures outlined in the vehicle's service manual.

8. How much does it cost to repair the B1635 code in a 2017 Toyota RAV4?

- The cost of repairing the B1635 code can vary depending on the underlying issue causing the malfunction. It is advisable to consult a professional technician for an accurate diagnosis and cost estimate.

9. Can a DIY enthusiast fix the B1635 code in a 2017 Toyota RAV4?

- While some minor repairs may be possible for experienced DIY enthusiasts, addressing the B1635 code in the airbag system of a 2017 Toyota RAV4 often requires specialized tools and knowledge best handled by a professional technician.

10. How often does the B1635 code occur in a 2017 Toyota RAV4?

- The occurrence of the B1635 code in a 2017 Toyota RAV4 can vary and is not extremely common, but if the code does appear, it should be addressed promptly to ensure the proper functioning of the airbag system.

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