OBD-II Diagnostic Trouble Codes

B1B56 – 1st Row Passenger Seatbelt Sensor Circuit Open (Jeep Grand Cherokee)

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B1B55 – 1st Row Passenger Seatbelt Sensor Circuit High (Jeep Grand Cherokee)

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B1B54 – 1st Row Passenger Seatbelt Sensor Circuit Low (Jeep Grand Cherokee)

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B1B53 – 1st Row Driver Seatbelt Sensor Circuit Shorted Together (Jeep Grand Cherokee)

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B1B52 – 1st Row Driver Seatbelt Sensor Circuit Open (Jeep Grand Cherokee)

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B1B51 – 1st Row Driver Seatbelt Sensor Circuit High (Jeep Grand Cherokee)

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B1B50 – 1st Row Driver Seatbelt Sensor Circuit Low (Jeep Grand Cherokee)

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B1B23 – Right Side Curtain Squib 1 Circuit Shorted Together (Jeep Grand Cherokee)

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B1B22 – Right Side Curtain Squib 1 Circuit Open (Jeep Grand Cherokee)

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B1B21 – Right Side Curtain Squib 1 Circuit High (Jeep Grand Cherokee)

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