B0085 Code - Left Front Side Impact Sensor
Quick Answer
The B0085 diagnostic trouble code refers to the left front side impact sensor in a vehicle's airbag system. Common causes include Faulty left front side impact sensor, Damaged wiring or connectors leading to the sensor, Corrosion or water damage affecting the sensor. 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
- B0085 indicates Left Front Side Impact Sensor.
- Common causes
- Common causes include Faulty left front side impact sensor, Damaged wiring or connectors leading to the sensor, Corrosion or water damage affecting the sensor.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B0085 Description
The B0085 diagnostic trouble code refers to the left front side impact sensor in a vehicle's airbag system. This sensor is responsible for detecting a side impact on the left front side of the vehicle and sending the necessary information to the airbag control module to deploy the airbags in the event of a collision. When this code is triggered, it indicates that there is a malfunction or fault with the left front side impact sensor.
Common Causes of B0085
- Faulty left front side impact sensor
- Damaged wiring or connectors leading to the sensor
- Corrosion or water damage affecting the sensor
- Issues with the airbag control module
- Impact or collision that may have damaged the sensor or wiring
Symptoms of B0085
- Airbag warning light illuminated on the dashboard
- Airbags not deploying in a side impact collision
- Inconsistent or erratic airbag deployment
- Vehicle fails airbag system self-test
- Error code B0085 stored in the vehicle's computer system
How to Fix B0085
- Diagnose the issue by using a scan tool to retrieve the specific trouble code (B0085) and identify the source of the problem.
- Inspect the left front side impact sensor for any visible damage, corrosion, or loose connections. Replace the sensor if necessary.
- Check the wiring harness leading to the sensor for any signs of damage or wear. Repair or replace any damaged wiring.
- Clear the trouble code from the vehicle's computer system using the scan tool.
- Perform a test to ensure that the left front side impact sensor is functioning correctly and that the airbag system is operating as intended.
Cost to Fix B0085
The cost of repairing a B0085 code related to the left front side impact sensor can vary depending on the vehicle make and model, as well as the extent of the damage. In general, the cost of replacing the sensor and addressing any wiring issues can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additional costs may apply if other components of the airbag system require attention. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific vehicle and the extent of the issue.
Tech Notes for B0085
B0085:05 Left Front Side Impact Sensor High Voltage/Open
B0085:0F Left Front Side Impact Sensor Signal Erratic
B0085:39 Left Front Side Impact Sensor Internal Malfunction
B0085:3A Left Front Side Impact Sensor Incorrect Component Installed
B0085:71 Left Front Side Impact Sensor Invalid Data
Need more information about the B0085 code?
Need more information on how to fix the B0085 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B0085 code diagnosed by a professional: Find a repair shop in your area
Code B0085 Information for Specific Makes
- B0085 Buick — Left Front Side Impact Sensor
- B0085 Cadillac — Left Front Side Impact Sensor
- B0085 Chevrolet — Left Front Side Impact Sensor
- B0085 GMC — Left Front Side Impact Sensor
- B0085 Hummer — Left Front Side Impact Sensor
- B0085 Pontiac — Left Front Side Impact Sensor
- B0085 Saturn — Left Front Side Impact Sensor
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.
Frequently Asked Questions about B0085 Code
1. What are the common symptoms of OBDII code B0085 (Left Front Side Impact Sensor)?
The common symptoms of OBDII code B0085 include the airbag warning light illuminating on the dashboard and potential issues with the deployment of the left front airbag during a collision.
2. What are the possible causes of OBDII code B0085?
The possible causes of OBDII code B0085 (Left Front Side Impact Sensor) include a faulty left front side impact sensor, damaged wiring or connectors leading to the sensor, or issues with the airbag control module.
3. How can I diagnose OBDII code B0085?
Diagnosing OBDII code B0085 involves using a diagnostic scanner to retrieve the specific trouble code, inspecting the left front side impact sensor and its wiring for any visible damage, and testing the sensor's functionality using a multimeter.
4. Can I drive my vehicle with OBDII code B0085 present?
It is not recommended to drive your vehicle with OBDII code B0085 present, as it indicates a potential issue with the left front side impact sensor, which could affect the proper deployment of the airbag in the event of a collision.
5. How can I repair OBDII code B0085?
Repairing OBDII code B0085 typically involves replacing the left front side impact sensor, repairing any damaged wiring or connectors, and clearing the trouble code with a diagnostic scanner.
6. Are there any safety concerns associated with OBDII code B0085?
Yes, OBDII code B0085 poses a safety concern as it indicates a potential issue with the left front side impact sensor, which could result in the airbag not deploying properly during a collision, compromising occupant safety.
7. How much does it cost to repair OBDII code B0085?
The cost to repair OBDII code B0085 (Left Front Side Impact Sensor) can vary depending on the make and model of the vehicle, the labor rates in your area, and whether any additional components need to be replaced. It's recommended to obtain quotes from local repair shops for an accurate estimate.
8. Can a DIY enthusiast repair OBDII code B0085 at home?
While some DIY enthusiasts may have the skills to replace the left front side impact sensor or repair wiring issues associated with OBDII code B0085, it is recommended to have the repair done by a professional to ensure proper installation and functionality of the airbag system.
9. Will OBDII code B0085 cause my airbags to not deploy in a collision?
OBDII code B0085 (Left Front Side Impact Sensor) indicates a problem with the left front side impact sensor, which could potentially prevent the airbag from deploying properly in a collision. It is essential to address this issue promptly to ensure the safety of vehicle occupants.
10. How long does it take to repair OBDII code B0085?
The time it takes to repair OBDII code B0085 can vary depending on the extent of the issue and the availability of parts. In general, a skilled mechanic can typically complete the repair within a few hours to a full day.
Discuss the causes and fixes for B0085 OBDII Code
Code B0085 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.