OBDII Code List

B1B50 DODGE - 1st Row Driver Seat Belt Sensor Circuit Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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B1B50 DODGE Possible Causes

  • Faulty Driver Seat Belt Buckle Switch
  • Driver Seat Belt Buckle Switch harness is open or shorted
  • Driver Seat Belt Buckle Switch circuit poor electrical connection
  • Faulty Occupant Restraint Controller (ORC)

First diagnose B1B50 DODGE 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 B1B50 DODGE code

    Labor: 1.0

    The cost of diagnosing the B1B50 DODGE 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.

When is the B1B50 DODGE code detected?

If the Occupant Restraint Controller (ORC) detects the driver seat belt buckle switch circuits have been shorted to ground for 2.5 seconds. The active code will change to stored after the ORC verifies the seat belt switch sense circuit voltage has returned to normal voltage range for five seconds.

B1B50 DODGE Possible Symptoms

  • Air Bag Warning Light ON

B1b50 Dodge Description

When powered, the Occupant Restraint Controller (ORC) sends a test current across the Driver Seat Belt Switch circuits every 100ms to verify the integrity of the switch and wiring. The DTC will set if the circuits are shorted together or to ground for 2.5 seconds and the code will transition from active to stored when the current returns to a normal range for five seconds. The front seat belt switches cannot be adjusted or repaired and, if ineffective or damaged, the entire front seat belt buckle-half unit must be replaced. The airbag warning lamp will display in the instrument cluster for this fault. While the ignition on and the Occupant Restraint Controller (ORC) is configured for a Driver Seat Belt Switch, the ORC checks the switch input current ranges. The ORC monitors the switch input current ranges at power up and continuously every 100ms.
OBDII Code B1b50 Dodge - 1st Row Driver Seat Belt Sensor Circuit Low -

B1B50 DODGE More Information

Need more information on how to fix the B1B50 DODGE 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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