The B0085 code indicates an issue with the left front side impact sensor in various General Motors vehicles. This sensor is crucial for the proper functioning of the airbag system. Here's what you need to know about its location and related information.

Sensor Location

The left front side impact sensor is typically located in one of these areas:

  • Door area: In some models, the sensor is found inside the driver's side door, near the bottom edge.
  • B-pillar: For certain vehicles, especially 3 or 5-door models, the sensor might be positioned towards the bottom of the B-pillar.
  • Door sill: In some cases, the sensor could be located in the door sill area.

To access the sensor, you may need to remove door panels, body trims, or door sill covers, depending on your specific vehicle model.

Affected Vehicles

This issue commonly affects various GM brands, including:

  • Chevrolet (Cruze, Malibu, Equinox, Traverse, Camaro, Tahoe, Silverado)
  • Buick (Verano, Regal, Encore)
  • GMC (Terrain, Sierra)
  • Cadillac (various models)

Understanding the B0085 Code

The B0085 code specifically means "Left Front Side Impact Sensor High Voltage Open." This indicates a problem with the sensor's electrical connection or the sensor itself.

Common Causes

  • Loose connection: The sensor's wiring harness may be disconnected or have a poor connection.
  • Damaged wiring: Wires leading to the sensor might be frayed, corroded, or broken.
  • Faulty sensor: The impact sensor itself could be defective and require replacement.

Diagnosis and Repair

To address the B0085 code:

1. Locate the sensor using the information provided above.

2. Inspect the wiring for any visible damage or loose connections.

3. Check the connector to ensure it's properly seated and free of corrosion.

4. Test the sensor using an appropriate diagnostic tool if necessary.

5. Replace the sensor if it's found to be faulty.

Always consult your vehicle's specific service manual for detailed instructions and safety precautions when working on airbag systems.

Importance of Proper Repair

It's crucial to address the B0085 code promptly, as it affects the vehicle's safety systems. An improperly functioning side impact sensor can compromise the airbag system's ability to deploy correctly in the event of a collision.

FAQs About B0085 Left Front Side Impact Sensor

    • Can I drive with the B0085 code present?
      While the vehicle may still operate, it's not recommended to drive with airbag system faults. The airbags may not function correctly in an accident.
    • Do I need special tools to replace the sensor?
      Basic hand tools are usually sufficient, but a diagnostic scanner is helpful for confirming the repair.
    • How long does it take to replace the sensor?
      Replacement time can vary, but it typically takes 1-2 hours, depending on the vehicle model and sensor location.

Remember, when dealing with airbag systems, safety is paramount. If you're unsure about performing the repair yourself, it's best to consult a qualified automotive technician.