Land Rover Jaguar B13c2-49 'link' • Best Pick

The sensor relies on a Local Interconnect Network (LIN) bus wire to stream data directly to the Automatic Temperature Control (ATC) or HVAC module.

While the code points directly to hardware degradation, it is frequently triggered by external environmental variables.

: Land Rover and Jaguar vehicles are highly sensitive to voltage; aging or low-charge batteries can trigger "ghost" electrical faults like B13C2-49. Wiring or Connector Issues

The humidity sensor module itself has failed internally.

| Source | Approximate Price Range | Notes | | :--- | :--- | :--- | | | $120 – $200 | Highest price, but guaranteed OEM fit. | | Online OEM Parts | $50 – $90 | Using part numbers like LR058011 or LR025888. | | Amazon / Online Marketplaces | $25 – $45 | Aftermarket/Chinese sensors (like BJ32-18D693-BA) which often work well. | | Jaguar Equivalent | $30 – $60 | Often identical to LR part but cheaper. | land rover jaguar b13c2-49

The automatic defogging function fails, causing the windshield to fog up, especially in humid or cold conditions.

The sensor's internal capacitive humidity element degrades over time due to constant exposure to intense solar heat loading at the top of the windshield. 2. Imbalance of Physical Contact

Have you dealt with B13C2-49? Let others know your fix in the comments below. Safe driving.

: Identifies the component as the Windshield Mist Sensor. The sensor relies on a Local Interconnect Network

: Some non-OEM glass does not have the correct mounting bracket or acoustic properties for the sensor to read correctly.

The vehicle can talk to the sensor, but the sensor's internal microprocessor or sensing element is outputting illogical, frozen, or entirely corrupted voltages. Primary Symptoms of a Failed Sensor

: Weak vehicle batteries can trigger various phantom electronic codes. If your battery is old, consider testing or replacing it as recommended by specialists at MW4-Outfitters.

If you own a modern Land Rover or Jaguar (such as the Discovery Sport, Range Rover Evoque, or various Jaguar sedans), you may encounter a climate control issue coupled with a cryptic diagnostic trouble code (DTC). Specifically, the code is a common, yet often misunderstood, fault that directly affects the automatic climate control system. Wiring or Connector Issues The humidity sensor module

: Optimizes the use of the AC compressor; the system only runs "dehumidification" when necessary rather than being on constantly. Common Issues

: The most common cause is a failed internal circuit within the sensor itself (part number often identified as Weak Vehicle Battery

: A loose, corroded, or damaged LIN bus circuit connection between the sensor and the Automatic Temperature Control (ATC) module.

If the sensor fails internally (that’s the “-49” suffix, meaning “internal electronic failure”), the car gets confused. As a result:

: Corrosion or loose pins in the wiring harness connected to the sensor. Recommended Solutions Replace the Sensor