B0057 GMC - Right Front/Passenger Pretensioner Deployment Loop Resistance Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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B0057 GMC Possible Causes

  • Faulty Right Front/Passenger Pretensioner
  • Right Front/Passenger Pretensioner harness is open or shorted
  • Right Front/Passenger Pretensioner circuit poor electrical connection
  • Faulty Sensing and Diagnostic Module (SDM)

First diagnose B0057 GMC code

    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 terminals.

Cost of diagnosing the B0057 GMC code

    Labor: 1.0

    The cost of diagnosing the B0057 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.

B0057 GMC Possible Symptoms

  • Air Bag Warning Light ON

B0057 Gmc Description

The passenger seat belt pretensioner deployment loop consists of a seat belt pretensioner - RF and the seat belt pretensioner - RF high and low circuits. A shorting bar used within the seat belt pretensioner connector shorts together both the seat belt pretensioner high and low circuits when the connector is disconnected. This will help to prevent unwanted deployment of the pretensioner during servicing. During a frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy the seat belt pretensioner. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, a Diagnostic Trouble Code (DTC) will be stored in memory.
OBDII Code B0057 Gmc - Right Front/Passenger Pretensioner Deployment Loop Resistance Low - AutoCodes.com

B0057 GMC More Information

Need more information on how to fix the B0057 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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