B1177 - Right Front Seat Belt Buckle Pre-Tensioner Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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B1177 Possible Causes

  • Faulty Right Front Seat Belt Buckle Pre-Tensioner
  • Right Front Seat Belt Buckle Pre-Tensioner harness is open or shorted
  • Right Front Seat Belt Buckle Pre-Tensioner circuit poor electrical connection
  • Faulty Air Bag Sensor Unit (Air Bag Control Module)

First diagnose B1177 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 B1177 code

    Labor: 1.0

    The cost of diagnosing the B1177 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.

B1177 Possible Symptoms

  • Air Bag Warning Light ON

B1177 Description

The Air Bag Sensor Unit (Air Bag Control Module) monitors the Right Side Front Seat Belt Buckle Pre-Tensioner. The Air Bag Sensor Unit sets the OBDII code when the circuit for front Right Front Seat Belt Buckle Pre-Tensioner is open.
OBDII Code B1177 - Right Front Seat Belt Buckle Pre-Tensioner Open - AutoCodes.com

B1177 More Information

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B1177 Information for specific makes

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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