B1637 2013 Toyota RAV4 Code - Lost Communication With Rear Airbag Sensor Left
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
- B1637 2013 Toyota RAV4 indicates Lost Communication With Rear Airbag Sensor Left.
- 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.
Code B1637 2013 Toyota RAV4 Description
What are the Possible Causes of the DTC B1637 2013 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 B1637 2013 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1637 2013 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 B1637 2013 Toyota RAV4 code?
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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 B1637 2013 Toyota RAV4 Code
1. What are the common symptoms of OBDII code B1637 in a 2013 Toyota RAV4?
The common symptoms include the airbag warning light staying illuminated on the dashboard and a potential loss of communication with the rear airbag sensor on the left side.
2. What can cause the OBDII code B1637 in a 2013 Toyota RAV4?
The code B1637 is typically triggered by issues such as a faulty rear airbag sensor on the left side, damaged wiring or connectors, or a communication breakdown between the sensor and the vehicle's onboard computer.
3. How can I diagnose the cause of the OBDII code B1637 in my 2013 Toyota RAV4?
To diagnose the issue, you can start by inspecting the wiring and connectors related to the rear airbag sensor on the left side for any visible damage. You may also use a diagnostic scanner to check for communication errors with the sensor.
4. Is it safe to drive my 2013 Toyota RAV4 with the OBDII code B1637 active?
It is recommended to address the issue promptly as driving with a malfunctioning airbag sensor can compromise the effectiveness of the airbag system in the event of a collision.
5. How can I reset the OBDII code B1637 in my 2013 Toyota RAV4?
After repairing the underlying issue causing the code B1637, you can reset the warning light and code using an OBDII scanner or by disconnecting the car battery for a few minutes.
6. Can I repair the OBDII code B1637 in my 2013 Toyota RAV4 myself?
Depending on your technical skills and access to tools, you may be able to repair the issue yourself by addressing the faulty sensor, wiring, or connectors. However, if you are unsure, it's best to seek assistance from a qualified mechanic.
7. Are there any safety precautions to consider when working on the airbag system related to code B1637 in a 2013 Toyota RAV4?
When working on the airbag system, it's crucial to disconnect the vehicle's battery and wait for a specific period to allow the airbag system capacitors to discharge to avoid accidental deployment.
8. How much does it typically cost to repair the OBDII code B1637 in a 2013 Toyota RAV4?
The cost of repairing the code B1637 can vary depending on the root cause of the issue. It may involve replacing a faulty sensor, repairing wiring, or addressing communication problems, so the cost can range from a few hundred to over a thousand dollars.
9. Will the OBDII code B1637 cause the airbags to not deploy in a collision in my 2013 Toyota RAV4?
The B1637 code relates to communication issues with the rear airbag sensor, which may affect the deployment of the airbags. It is crucial to resolve this issue promptly to ensure the proper functioning of the airbag system in case of an accident.
10. How long does it typically take to repair the OBDII code B1637 in a 2013 Toyota RAV4?
The repair time for the B1637 code can vary depending on the complexity of the issue and the availability of parts. It may take a few hours to a full day for a qualified mechanic to diagnose and fix the problem.
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