The B13C2-49 code will remain as a "Permanent" or "Hard" fault and cannot be cleared until the hardware is addressed. Common Solutions & Fixes
Use a professional-grade scanner (such as iCarSoft, GAP IID Tool, or JLR SDD) to check for the code and view live data from the humidity sensor. If the scanner cannot communicate with the sensor or the data values seem implausible, it confirms an issue.
"-49" denotes "Internal Electronic Failure." This indicates that the sensor itself is likely providing faulty data to the HVAC module, rather than just a broken wire.
Maintain optimized ambient comfort levels inside the vehicle without requiring manual adjustments. Technical Breakdown of the B13C2-49 Sub-Fault land rover jaguar b13c2-49
Based on owner experiences from communities like FullFatRR and Drive2 , here is how this is typically resolved:
While this code indicates a malfunction, the sensor itself enables a known as Automatic Defogging or Climate Control Humidity Sensing . How the Feature Works
If the mounting is fine, the sensor is likely dead. You can find this part using these common part numbers: Land Rover: LR058011 or LR025888 The B13C2-49 code will remain as a "Permanent"
Unfortunately, JLR does not sell the sensor mat separately. You have two options:
: This sensor provides data to the Climate Control (HVAC) module to help prevent the windshield from fogging up. A failure can lead to inefficient air conditioning performance or the compressor not engaging properly. Common Causes
This single pod houses three critical data-gathering components: "-49" denotes "Internal Electronic Failure
The most common replacement OEM parts corresponding to this failure include for Land Rover models and Part Number JDE35470 or BJ32-13D693 for Jaguar applications. Step-by-Step Diagnostic & Repair Guide Step 1: Rule Out Windshield & Wiring Issues
This specific code is often found in newer models, such as the Range Rover Evoque