B0086:71 Code - Right Front Side Impact Sensor Invalid Data
Quick Answer
The B0086:71 diagnostic trouble code (DTC) indicates that the right front side impact sensor is sending invalid data to the vehicle's electronic control module (ECM) or airbag control module. Common causes include Faulty right front side impact sensor, Wiring harness issues such as shorts, opens, or damaged wiring, Corrosion or poor connections at the sensor or ECM. 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
- B0086:71 indicates Right Front Side Impact Sensor Invalid Data.
- Common causes
- Common causes include Faulty right front side impact sensor, Wiring harness issues such as shorts, opens, or damaged wiring, Corrosion or poor connections at the sensor or ECM.
- 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.
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Code B0086:71 Description
The B0086:71 diagnostic trouble code (DTC) indicates that the right front side impact sensor is sending invalid data to the vehicle's electronic control module (ECM) or airbag control module. Side impact sensors are crucial components of a vehicle's supplemental restraint system (SRS) that help detect side collisions and deploy the side airbags to protect occupants. When the right front side impact sensor sends invalid data, it can compromise the vehicle's ability to accurately assess the severity of a side impact and deploy the side airbags effectively.
Common Causes of B0086:71
- Faulty right front side impact sensor.
- Wiring harness issues such as shorts, opens, or damaged wiring.
- Corrosion or poor connections at the sensor or ECM.
- ECM or airbag control module malfunctions.
- Impact or damage to the sensor from a previous collision.
Symptoms of B0086:71
- Airbag warning light illuminated on the dashboard.
- Inaccurate or inconsistent airbag deployment in side impact collisions.
- Diagnostic trouble codes related to the SRS system stored in the ECM.
- Loss of communication with the right front side impact sensor.
How to Fix B0086:71
- Begin by diagnosing the specific cause of the invalid data from the right front side impact sensor using a scan tool to retrieve the DTC.
- Inspect the wiring harness for any visible damage, corrosion, or poor connections. Repair or replace any damaged wiring as needed.
- Test the right front side impact sensor for proper operation and replace it if found to be faulty.
- Clear the DTC from the ECM's memory and perform a system reset to ensure the repair was successful.
- Conduct a thorough test drive to verify that the airbag warning light is no longer illuminated, and the side impact sensor is sending valid data to the ECM.
Cost to Fix B0086:71
The cost of repairing a B0086:71 DTC can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing a faulty side impact sensor can cost between $100 and $300, while addressing wiring harness issues may range from $150 to $500. The total repair cost, including parts and labor, could range from $200 to $800 or more. It's advisable to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates can vary, so it's essential to inquire about these factors when obtaining a repair quote.
Tech Notes for B0086:71
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
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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.
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