AutoCodes – GMC – B0083 GMC

B0083 GMC Code - Left Front Impact Sensor

Quick Answer

The impact sensors are equipped on vehicles to supplement the Supplemental Inflatable Restraint (SIR) system performance. Common causes include Faulty Left Front Impact Sensor, Left Front Impact Sensor harness is open or shorted, Left Front Impact Sensor circuit poor electrical connection. 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 GMC indicates Left Front Impact Sensor.
Common causes: Common causes include Faulty Left Front Impact Sensor, Left Front Impact Sensor harness is open or shorted, Left Front Impact Sensor circuit poor electrical connection.
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 Popularity 6,894

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 23, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0083 GMC Description

The impact sensors are equipped on vehicles to supplement the Supplemental Inflatable Restraint (SIR) system performance. The impact sensors are electronic and are not part of the deployment loops, but instead provide inputs to the inflatable restraint sensing and diagnostic module. The impact sensors can assist in determining the severity of some frontal and side collisions. The Inflatable Restraint Sensing and Diagnostic Module (SDM) uses the input from the impact sensors to assist in determining the severity of a collision, further supporting air bag deployment. If the Inflatable Restraint Sensing and Diagnostic Module determines a deployment is warranted, the Inflatable Restraint Sensing and Diagnostic Module will cause current to flow through the deployment loops deploying the air bags.

OBDII Code B0083 GMC - Left Front Impact Sensor - AutoCodes.com — B0083 GMC Code - Left Front Impact Sensor

What does this mean?

What are the Possible Causes of the DTC B0083 GMC?

Faulty Left Front Impact Sensor
Left Front Impact Sensor harness is open or shorted
Left Front Impact Sensor circuit poor electrical connection
Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0083 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0083 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B0083 GMC code?

Need more information on how to fix the B0083 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0083 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B0083 2014 GMC Sierra — Left Front Impact Sensor
B0083 2015 GMC Sierra — Left Front Impact Sensor
B0083 2016 GMC Sierra — Left Front Impact Sensor
B0083 2017 GMC Sierra — Left Front Impact Sensor
B0083 2018 GMC Sierra — Left Front 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.

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.

Frequently Asked Questions about B0083 GMC Code

1. What are the common symptoms of OBDII code B0083 GMC (Left Front Impact Sensor)?

The common symptoms of code B0083 GMC may include the airbag warning light illuminating on the dashboard, a message indicating issues with the airbag system, or the airbags not deploying in the event of a collision.

2. What are the possible causes of OBDII code B0083 GMC (Left Front Impact Sensor)?

The code B0083 GMC is typically triggered by a malfunction in the left front impact sensor, which could be due to wiring issues, sensor damage, or a faulty connection.

3. How can I diagnose the OBDII code B0083 GMC (Left Front Impact Sensor)?

Diagnosing the code B0083 GMC involves using a scan tool to retrieve the specific trouble code, conducting a visual inspection of the left front impact sensor and its wiring, and testing the sensor for proper functionality.

4. Can I drive my vehicle with OBDII code B0083 GMC (Left Front Impact Sensor) present?

It is not recommended to drive your vehicle with the code B0083 GMC active, as it indicates a potential issue with the airbag system, which may compromise your safety in the event of a collision.

5. How can I repair OBDII code B0083 GMC (Left Front Impact Sensor)?

Repairing the code B0083 GMC involves addressing the root cause of the issue, which may include repairing or replacing the left front impact sensor, fixing any wiring issues, or ensuring a proper connection.

6. Is it possible to reset OBDII code B0083 GMC (Left Front Impact Sensor) without fixing the underlying problem?

Resetting the code B0083 GMC without fixing the underlying issue will only temporarily clear the fault code, but the problem will likely reoccur until the root cause is properly addressed.

7. Are there any safety concerns associated with OBDII code B0083 GMC (Left Front Impact Sensor)?

Yes, there are safety concerns associated with the code B0083 GMC, as it indicates a potential malfunction in the airbag system, which is designed to protect occupants in the event of a collision.

8. How much does it typically cost to repair OBDII code B0083 GMC (Left Front Impact Sensor)?

The cost of repairing the code B0083 GMC can vary depending on the specific cause of the issue, but it may involve sensor replacement, wiring repairs, or professional diagnostic fees.

9. Can a DIY enthusiast fix OBDII code B0083 GMC (Left Front Impact Sensor)?

While some DIY enthusiasts may have the skills to address simple wiring issues or sensor replacements, diagnosing and repairing the code B0083 GMC may require specialized tools and expertise best handled by a professional mechanic.

10. How long does it take to repair OBDII code B0083 GMC (Left Front Impact Sensor)?

The repair time for the code B0083 GMC can vary based on the complexity of the issue and the availability of parts, but it typically ranges from a few hours to a full day, depending on the extent of the repairs needed.