AutoCodes - OBDII Code List - B0051 GMC

B0051 GMC - Deployment Commanded

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
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B0051 GMC Possible Causes

What does this mean?
  • Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)
  • Inflatable Restraint Sensing and Diagnostic Module (SDM) harness is open or shorted
  • Inflatable Restraint Sensing and Diagnostic Module (SDM) circuit poor electrical connection

How do I fix code B0051 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.

Cost of diagnosing the B0051 GMC code

Labor: 1.0

The cost of diagnosing the B0051 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Air Bag Warning Light ON

B0051 Gmc Description

The Inflatable Restraint Sensing and Diagnostic Module (SDM) contains sensing devices that converts vehicle velocity changes to electrical signals. The SDM processes the generated electrical signals and compares them to values stored in memory. When the generated signals exceed the stored values, the SDM performs additional signal processing and compares the generated signals to signals stored in memory. When 2 of the generated signals exceed the stored values, the SDM will cause current to flow through the inflator modules, deploying the inflator modules, and causing DTC B0051 to set.
OBDII Code B0051 Gmc - Deployment Commanded - AutoCodes.com

B0051 GMC More Information

Need more information on how to fix the B0051 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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