B1632 Code - Lost Communication With Rear Airbag Sensor Right

Quick Answer

The diagnostic code B1632 indicates that there is a communication failure with the rear airbag sensor located on the right side of the vehicle. Common causes include Wiring issues such as a short circuit or open circuit, Faulty rear airbag sensor on the right side, Damaged connector leading to poor connectivity. 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

B1632 indicates Lost Communication With Rear Airbag Sensor Right.

Common causes

Common causes include Wiring issues such as a short circuit or open circuit, Faulty rear airbag sensor on the right side, Damaged connector leading to poor connectivity.

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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
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Common Causes of B1632

Symptoms of B1632

How to Fix B1632

Cost to Fix B1632

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Code B1632 Information for Specific Makes

• B1632 Acura — MTR CONT Signal Error
• B1632 Chrysler — Left High Beam Control Circuit Short
• B1632 Dodge — Left High Beam Control Circuit Short
• B1632 Honda — MTR CONT Signal Error
• B1632 Jeep — Left High Beam Control Circuit Short
• B1632 Lexus — Lost Communication With Rear Airbag Sensor Right
• B1632 RAM — Left High Beam Control Circuit Short
• B1632 Scion — Lost Communication With Rear Airbag Sensor Right
• B1632 Toyota — Lost Communication With Rear Airbag Sensor Right

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 B1632 Code

1. What are the common symptoms of OBDII code B1632 (Lost Communication With Rear Airbag Sensor Right)?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential loss of communication with the right rear airbag sensor.

2. What are some possible causes of OBDII code B1632?

- Possible causes include a faulty rear airbag sensor on the right side, damaged wiring or connectors, or issues with the airbag control module.

3. How can I diagnose the cause of OBDII code B1632?

- Diagnose the code by using a diagnostic scanner to retrieve and interpret the trouble codes, inspecting the wiring and connectors for any damage, and testing the rear airbag sensor for functionality.

4. Can I still drive my vehicle with OBDII code B1632 present?

- It is not recommended to drive the vehicle with this code present, as it indicates a potential issue with the airbag system, which is crucial for safety in the event of a collision.

5. How can I repair OBDII code B1632?

- Repair options include replacing the faulty rear airbag sensor, repairing damaged wiring or connectors, or resetting the airbag control module after addressing any underlying issues.

6. Is it safe to reset the OBDII code B1632 without fixing the underlying problem?

- It is not safe to reset the code without addressing the underlying issue, as it may compromise the proper functioning of the airbag system in the event of an accident.

7. Can a DIY enthusiast fix OBDII code B1632 at home?

- Depending on the cause of the code, DIY enthusiasts may be able to fix it at home by following repair guides, but caution is advised when working on airbag-related components due to safety concerns.

8. How much does it cost to repair OBDII code B1632 at a repair shop?

- Repair costs can vary depending on the specific cause of the code and the labor rates of the repair shop, but it is recommended to get a diagnostic assessment before proceeding with any repairs.

9. Are there any recalls related to OBDII code B1632?

- Check with the vehicle manufacturer or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to OBDII code B1632 to see if your vehicle is affected.

10. Can OBDII code B1632 be triggered by a low battery or electrical issues?

- Yes, a low battery or electrical issues can sometimes trigger communication errors that result in OBDII code B1632, so it's important to ensure the vehicle's electrical system is in good condition.