Engine-CodesGeneric – B0086:3A

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

Quick Answer

The B0086:3A diagnostic trouble code indicates that the right front side impact sensor in the vehicle has an incorrect component installed. Common causes include Incorrect installation of the side impact sensor during a repair or maintenance procedure, Damage to the sensor due to a previous collision or impact, Corrosion or loose connections in the sensor's wiring. 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
B0086:3A indicates Right Front Side Impact Sensor Incorrect Component Installed.
Common causes
Common causes include Incorrect installation of the side impact sensor during a repair or maintenance procedure, Damage to the sensor due to a previous collision or impact, Corrosion or loose connections in the sensor's wiring.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B0086:3A Description

The B0086:3A diagnostic trouble code indicates that the right front side impact sensor in the vehicle has an incorrect component installed. Side impact sensors are crucial components of a vehicle's safety system, as they are responsible for detecting side collisions and deploying the appropriate safety measures, such as airbags, to protect the occupants. When the sensor has an incorrect component installed, it may not function properly, leading to potential safety risks in the event of a side impact collision.

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

Common Causes of B0086:3A

  1. Incorrect installation of the side impact sensor during a repair or maintenance procedure.
  2. Damage to the sensor due to a previous collision or impact.
  3. Corrosion or loose connections in the sensor's wiring.
  4. Aftermarket parts or components used that are not compatible with the vehicle's system.

Symptoms of B0086:3A

  1. Airbag warning light illuminated on the dashboard.
  2. Inaccurate or inconsistent airbag deployment during testing.
  3. Vehicle fails side impact crash tests.
  4. Diagnostic trouble code B0086:3A stored in the vehicle's computer system.

How to Fix B0086:3A

  1. Consult the vehicle's service manual to locate the right front side impact sensor.
  2. Inspect the sensor and wiring for any visible damage or loose connections.
  3. Replace the incorrect component with the appropriate OEM part recommended by the manufacturer.
  4. Clear the diagnostic trouble code from the vehicle's computer system using a scan tool.
  5. Perform a thorough test to ensure the sensor is functioning correctly and the airbags deploy as intended during a controlled test.

Cost to Fix B0086:3A

The typical repair costs for addressing a B0086:3A code related to an incorrect component in the right front side impact sensor can range from $200 to $500, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is advisable to check local rates for a more precise estimate before proceeding with the repair.

Tech Notes for B0086:3A

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 B0086:3A 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.

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