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Engine-Codes – Generic – B0086:39

B0086:39 Code - Right Front Side Impact Sensor Internal Malfunction

Quick Answer

The B0086:39 diagnostic trouble code (DTC) indicates a Right Front Side Impact Sensor Internal Malfunction. Common causes include Faulty right front side impact sensor, Wiring issues or electrical faults in the sensor circuit, Corrosion or damage to sensor connectors. 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
B0086:39 indicates Right Front Side Impact Sensor Internal Malfunction.
Common causes
Common causes include Faulty right front side impact sensor, Wiring issues or electrical faults in the sensor circuit, Corrosion or damage to sensor connectors.
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 11, 2024
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Code B0086:39 Description

The B0086:39 diagnostic trouble code (DTC) indicates a Right Front Side Impact Sensor Internal Malfunction. This code is often triggered when the right front side impact sensor, a crucial component of the vehicle's safety system, is not functioning properly. Side impact sensors are responsible for detecting side collisions and deploying airbags to protect occupants in the event of a crash. When the sensor malfunctions, it may not accurately detect impacts, potentially compromising the airbag deployment system's effectiveness.

OBDII Code B0086:39 - Right Front Side Impact Sensor Internal Malfunction
B0086:39 Code - Right Front Side Impact Sensor Internal Malfunction

Common Causes of B0086:39

  1. Faulty right front side impact sensor
  2. Wiring issues or electrical faults in the sensor circuit
  3. Corrosion or damage to sensor connectors
  4. Impact or collision causing sensor damage
  5. Software issues within the vehicle's control module

Symptoms of B0086:39

  1. Airbag warning light illuminated on the dashboard
  2. Inaccurate or inconsistent airbag deployment
  3. Loss of communication with the right front side impact sensor
  4. Vehicle failing safety inspections due to airbag system malfunction

How to Fix B0086:39

  1. Diagnose the specific cause of the malfunction using a diagnostic scan tool to identify the faulty component.
  2. Inspect the wiring and connectors for any signs of damage, corrosion, or loose connections.
  3. Replace the right front side impact sensor if it is found to be faulty or damaged.
  4. Clear the DTC codes from the vehicle's onboard computer system using a scan tool.
  5. Perform a test drive to verify that the airbag system is functioning correctly after repairs.

Cost to Fix B0086:39

The cost of repairing a Right Front Side Impact Sensor Internal Malfunction can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the cost of parts for a new side impact sensor can range from $100 to $300, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue is typically between $200 and $500. It is important to note that labor rates at auto repair shops can vary, so it is recommended to obtain a detailed estimate from a professional technician based on the specific circumstances of your vehicle.

What does this mean?

Tech Notes for B0086:39

B0086:02 Right Front Side Impact Sensor Short to Ground

B0086:05 Right Front Side Impact Sensor High Voltage/Open

B0086:0F Right Front Side Impact Sensor Signal Erratic

B0086:39 Right Front Side Impact Sensor Internal Malfunction

B0086:3A Right Front Side Impact Sensor Incorrect Component Installed

B0086:71 Right Front Side Impact Sensor Invalid Data

Need more information about the B0086:39 code?

Need more information on how to fix the B0086:39 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0086:39 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.

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