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Engine-Codes – Generic – B0084:02

B0084:02 Code - Right Front Impact Sensor Short to Ground

Quick Answer

The B0084:02 diagnostic trouble code indicates that there is a short to ground in the right front impact sensor circuit. Common causes include Wiring harness damage or wear, Corrosion in the sensor connector, Faulty impact 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
B0084:02 indicates Right Front Impact Sensor Short to Ground .
Common causes
Common causes include Wiring harness damage or wear, Corrosion in the sensor connector, Faulty impact 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code B0084:02 Description

The B0084:02 diagnostic trouble code indicates that there is a short to ground in the right front impact sensor circuit. Impact sensors are crucial components of a vehicle's safety system, as they detect collisions and deploy airbags to protect occupants. In this case, the right front impact sensor is not functioning correctly due to a short circuit that is causing it to ground out. This can lead to the airbags not deploying properly in the event of a collision, compromising the safety of the vehicle's occupants.

OBDII Code B0084:02 - Right Front Impact Sensor Short to Ground
B0084:02 Code - Right Front Impact Sensor Short to Ground

Common Causes of B0084:02

  1. Wiring harness damage or wear.
  2. Corrosion in the sensor connector.
  3. Faulty impact sensor.
  4. Electrical short circuit in the sensor circuit.
  5. Water intrusion causing a short to ground.

Symptoms of B0084:02

  1. Airbag warning light illuminated on the dashboard.
  2. Inability to deploy airbags in a collision.
  3. Unexpected airbag deployment.
  4. Communication errors with the airbag control module.
  5. Diagnostic trouble code stored in the vehicle's computer system.

How to Fix B0084:02

  1. Begin by disconnecting the vehicle's battery to prevent any electrical mishaps.
  2. Inspect the wiring harness for any visible damage, wear, or corrosion. Repair or replace any damaged wiring.
  3. Check the sensor connector for corrosion or loose connections. Clean or replace the connector as needed.
  4. Test the right front impact sensor for proper functionality. Replace the sensor if it is faulty.
  5. Clear the diagnostic trouble code from the vehicle's computer system and test the airbag system to ensure proper operation.

Cost to Fix B0084:02

The cost of repairing a right front impact sensor short to ground can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the parts for this repair can range from $100 to $300, while the labor costs can be between $150 and $300. Overall, the total repair cost for this issue may fall between $250 and $600. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the auto repair shop. It is recommended to obtain quotes from local repair shops for a more accurate cost estimate.

What does this mean?

Tech Notes for B0084:02

B0084:02 Right Front Impact Sensor Short to Ground

B0084:05 Right Front Impact Sensor Short to Battery or Open

B0084:08 Right Front Impact Sensor Signal Invalid

B0084:0F Right Front Impact Sensor Erratic

B0084:39 Right Front Impact Sensor Internal Electronic Failure

B0084:3A Right Front Impact Sensor Incorrect Component Installed

B0084:71 Right Front Impact Sensor Invalid Serial Data Received

Need more information about the B0084:02 code?

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Need Help with the 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.

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 B0084:02 Code

1. What are the common symptoms of OBDII code B0084:02 (Right Front Impact Sensor Short to Ground)?

The common symptoms include the airbag warning light staying illuminated on the dashboard and possible failure of the airbag system.

2. What can cause the Right Front Impact Sensor Short to Ground code to trigger?

This code is usually triggered by a short circuit in the wiring leading to the right front impact sensor or a fault within the sensor itself.

3. How serious is the issue of a Right Front Impact Sensor Short to Ground?

This issue is serious as it can compromise the proper functioning of the airbag system, potentially leading to airbag failure in the event of a collision.

4. Can I continue driving with the B0084:02 code present?

It is not recommended to drive with this code present, as it indicates a safety issue with the airbag system that may not deploy properly in the event of a crash.

5. What should I do if I get the B0084:02 code?

If you get this code, it is advisable to have the vehicle inspected by a professional technician to diagnose the exact cause and address the issue promptly.

6. How can the Right Front Impact Sensor Short to Ground be repaired?

Repairing this issue involves locating and fixing the short circuit in the wiring or replacing the faulty right front impact sensor with a new one.

7. Is it possible to reset the B0084:02 code without fixing the issue?

While you can clear the code using an OBDII scanner, it is crucial to address the underlying problem to ensure the proper functioning of the airbag system.

8. Are there any DIY tips for troubleshooting the Right Front Impact Sensor Short to Ground issue?

DIY troubleshooting tips include checking the wiring connections for any visible damage and ensuring the sensor is securely mounted in place.

9. How much does it typically cost to repair the B0084:02 code?

The cost of repair can vary depending on the exact cause of the issue and whether you choose to do the repair yourself or have it done by a professional technician.

10. Can the B0084:02 code affect other vehicle systems?

While this code specifically relates to the right front impact sensor, it is essential to address it promptly to prevent any potential safety risks and ensure the overall integrity of the airbag system.

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