Engine-CodesGeneric – B0083:71

B0083:71 Code - Left Front Impact Sensor Invalid Serial Data Received

Quick Answer

The B0083:71 diagnostic trouble code (DTC) indicates that the left front impact sensor has detected invalid serial data. Common causes include Faulty left front impact sensor, Wiring or connection issues between the sensor and the control module, Corrosion or damage to the sensor or its 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
B0083:71 indicates Left Front Impact Sensor Invalid Serial Data Received.
Common causes
Common causes include Faulty left front impact sensor, Wiring or connection issues between the sensor and the control module, Corrosion or damage to the sensor or its 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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B0083:71 Description

The B0083:71 diagnostic trouble code (DTC) indicates that the left front impact sensor has detected invalid serial data. Impact sensors are crucial components of a vehicle's safety system, as they are responsible for detecting collisions and deploying airbags when necessary. When the left front impact sensor receives invalid serial data, it means that there is a communication issue between the sensor and the vehicle's control module.

OBDII Code B0083:71 - Left Front Impact Sensor Invalid Serial Data Received
B0083:71 Code - Left Front Impact Sensor Invalid Serial Data Received

Common Causes of B0083:71

  1. Faulty left front impact sensor.
  2. Wiring or connection issues between the sensor and the control module.
  3. Corrosion or damage to the sensor or its connectors.
  4. Software or firmware issues with the control module.
  5. Electrical issues within the vehicle's system.

Symptoms of B0083:71

  1. Airbag warning light illuminated on the dashboard.
  2. Inability to deploy airbags in the event of a collision.
  3. Erratic or non-responsive behavior from the vehicle's safety systems.
  4. Poor fuel efficiency or engine performance.
  5. Rough idling or engine stalling.

How to Fix B0083:71

  1. Begin by conducting a thorough inspection of the left front impact sensor and its wiring to check for any visible damage or corrosion.
  2. Check the sensor's connectors and wiring harness for any loose connections or breaks.
  3. Test the sensor's functionality using a diagnostic scan tool to determine if it is sending and receiving data properly.
  4. If the sensor is found to be faulty, replace it with a new sensor from the manufacturer.
  5. Clear the DTC and perform a test drive to ensure that the issue has been resolved and that the airbag system is functioning correctly.

Cost to Fix B0083:71

The cost of repairing a B0083:71 DTC can vary depending on the specific vehicle make and model, as well as the location of the repair shop. However, as a rough estimate, the repair costs for this issue could range from $200 to $500, including parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate.

Tech Notes for B0083:71

B0083:02 Left Front Impact Sensor Short to Ground
B0083:05 Left Front Impact Sensor Short to Battery or Open
B0083:08 Left Front Impact Sensor Signal Invalid
B0083:0F Left Front Impact Sensor Erratic
B0083:39 Left Front Impact Sensor Internal Electronic Failure
B0083:3A Left Front Impact Sensor Incorrect Component Installed
B0083:71 Left Front Impact Sensor Invalid Serial Data Received

Need more information about the B0083:71 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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