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In the Jaguar Land Rover (JLR) diagnostic ecosystem, codes are highly specific. Breaking down B13C2-49 reveals exactly what the vehicle's brain—the Body Control Module (BCM)—is complaining about: B13C2: Identifies the Windshield Mist Sensor circuit.
Open the plastic housing. Check if the sensor is still securely seated and if the cable harness is visibly intact.
If your vehicle throws the B13C2-49 code, the root cause typically falls into one of three categories: 1. Internal Component Degradation
The sensor in question goes by a few names, including the "windshield misting sensor," "humidity sensor," or, in some JLR documents, the "front windscreen misting sensor." Its primary role is to keep your windows clear and your cabin comfortable.