B0059 - Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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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)

Possible symptoms

  • Air Bag Warning Light ON

B0059 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 B0059 - Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range - AutoCodes.com

B0059 Information for specific makes

  • B0059 BUICK Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range
  • B0059 CADILLAC Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range
  • B0059 CHEVROLET Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range
  • B0059 GMC Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range

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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