B1019 GMC - SDM System Configuration Error

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

B1019 GMC Possible Causes

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

How do I fix code B1019 GMC?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Tech Notes

B1019 00: SDM System Configuration Error
B1019 3A: SDM System Configuration Error Incorrect Component Installed

Cost of diagnosing the B1019 GMC code

Labor: 1.0

The cost of diagnosing the B1019 GMC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Possible Symptoms

  • Air Bag Warning Light ON

B1019 GMC Description

After the Sensing Diagnostic Module (SDM) is programmed, the SDM setup procedure is required. During this set up procedure, the SDM will compare the content that was just programmed to the actual components that are installed on the vehicle. If the SDM detects that there are too few or too many components on the system, DTC B1019 00 will set and not allow the setup procedure to complete.
OBDII Code B1019 Gmc - SDM System Configuration Error - AutoCodes.com

More Information

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

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.

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