AutoCodesGMC – B1019 GMC

B1019 GMC Code - SDM System Configuration Error

Quick Answer

The Inflatable Restraint Sensing and Diagnostic Module (SDM) monitors the number of safety components installed on the vehicle. Common causes include Program Inflatable Restraint Sensing and Diagnostic Module (SDM), Faulty Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted. 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
B1019 GMC indicates SDM System Configuration Error.
Common causes
Common causes include Program Inflatable Restraint Sensing and Diagnostic Module (SDM), Faulty Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted.
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 10,098
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 05, 2023
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Code B1019 GMC Description

The Inflatable Restraint Sensing and Diagnostic Module (SDM) monitors the number of safety components installed on the vehicle. When the ignition is turned ON, the Inflatable Restraint Sensing and Diagnostic Module evaluates the number of safety components installed and compares it to the number of components the Inflatable Restraint Sensing and Diagnostic Module expects to see on the vehicle with its current calibration. If there is a mismatch between the detected components and the components programmed with the Inflatable Restraint Sensing and Diagnostic Module calibration, Diagnostic Trouble Code (DTC) B1019 will be set. The components (if equipped) that the Inflatable Restraint Sensing and Diagnostic Module will detect include inflatable restraint deployment loops, impact sensors, passenger presence system components, seat position sensors, disable switches, and seat belt switches.
OBDII Code B1019 GMC - SDM System Configuration Error - AutoCodes.com
B1019 GMC Code - SDM System Configuration Error

What are the Possible Causes of the DTC B1019 GMC?

  • Program Inflatable Restraint Sensing and Diagnostic Module (SDM)
  • Faulty Inflatable Restraint Sensing and Diagnostic Module
  • Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted
  • Inflatable Restraint Sensing and Diagnostic Module circuit poor electrical connection

How to Fix the DTC B1019 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1019 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 B1019 GMC code?

Need more information on how to fix the B1019 GMC code? Get Access to Factory Service Manuals

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Information for Specific GMC Models

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 B1019 GMC Code

1. What are common symptoms of OBDII code B1019 GMC (SDM System Configuration Error)?

The common symptoms of code B1019 include the airbag warning light being illuminated on the dashboard and potential issues with the airbag system.

2. What are possible causes of OBDII code B1019 GMC?

Possible causes of code B1019 include a malfunctioning SDM (Sensing and Diagnostic Module), damaged wiring or connectors in the airbag system, or a software issue within the SDM system.

3. How serious is OBDII code B1019 GMC?

Code B1019 is a serious issue as it indicates a fault in the SDM system, which is crucial for the proper functioning of the airbag system. It is important to address this code promptly to ensure the safety features of the vehicle are functioning correctly.

4. How can I diagnose OBDII code B1019 GMC?

Diagnosing code B1019 typically involves using a professional OBDII scanner to read the fault codes stored in the vehicle's system. Further diagnosis may require inspecting the wiring and connectors in the airbag system and testing the SDM module.

5. Can I repair OBDII code B1019 GMC on my own?

Repairing code B1019 may require advanced diagnostic tools and expertise due to the safety implications of the airbag system. It is recommended to consult a professional mechanic or dealership for proper diagnosis and repair.

6. Are there any DIY tips for addressing OBDII code B1019 GMC?

While DIY repairs for code B1019 are not recommended due to safety concerns, you can check for any visible damage to the wiring or connectors in the airbag system. However, it is best to seek professional assistance for a thorough diagnosis and repair.

7. How much does it cost to fix OBDII code B1019 GMC?

The cost of fixing code B1019 can vary depending on the specific cause of the issue. Repairs may involve replacing the SDM module, repairing damaged wiring, or addressing software issues. It is advisable to obtain a quote from a professional mechanic for an accurate estimate.

8. Can OBDII code B1019 GMC cause the airbags to not deploy in an accident?

Yes, code B1019 indicates a fault in the SDM system, which can potentially affect the deployment of the airbags in the event of a collision. It is crucial to address this code promptly to ensure the proper functioning of the airbag system.

9. Is it safe to drive with OBDII code B1019 GMC present?

It is not recommended to drive with code B1019 present, as it indicates a fault in the airbag system. Driving with a malfunctioning airbag system can compromise your safety in the event of an accident. It is best to address this code before driving the vehicle.

10. How long does it take to repair OBDII code B1019 GMC?

The repair time for code B1019 can vary depending on the specific cause of the issue and the extent of the repairs needed. It is advisable to consult with a professional mechanic to determine the estimated repair time for your specific situation.

Discuss the causes and fixes for B1019 GMC OBDII Code

  • Can a B1019 GMC code be caused by a passenger airbag inflator being replaced?

  • Why did you replace the airbag? was your car in an accident? if your car was in an accident then the Sensing Diagnostic Module (SDM) needs to be reset or replace.

  • It was a recall, no accident. In addition to replacement the Airbag indicator light showing its functioning does not light up.

  • In that case you need to take it back to the dealer, they need to reprogram the airbag control unit and reset the airbag light.

  • They refuse to reprogram unless I pay for it! $120.00-$180.00

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