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: Over time, solar heat and humidity degrade the microscopic silicon and capacitive elements inside the plastic housing.
Jaguar and Land Rover often share this part. You can sometimes find the Jaguar-branded version at a lower price even though they are identical.
Locate the sensor behind the rearview mirror. Check the wiring harness and connector for any signs of damage, corrosion, or loose pins. land rover jaguar b13c2-49
is the sub-type failure matrix indicator, explicitly meaning Internal Electronic Failure .
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. : Over time, solar heat and humidity degrade
. This sensor is responsible for detecting humidity levels on the interior glass to help the HVAC system manage window fogging automatically. Key Details and Symptoms Definition : Windshield misting sensor - System internal failure. Common Symptoms Inefficient or non-responsive automatic defogging.
The most common symptom is a sudden loss of automatic defogging. During rainy, humid, or cold weather, the windshield will cloud over, requiring manual adjustment of the fan speeds and defrost buttons. Locate the sensor behind the rearview mirror
For the average driver, a dashboard warning light is stressful enough. Seeing an alphanumeric code like this on a dealer scan tool (such as SDD or Pathfinder) can be downright confusing. Is it a safety issue? Will it leave you stranded? Is it an expensive electrical fault?
Because this code does not trigger a Check Engine Light (CEL) or a critical dashboard warning, many drivers only discover it during a routine OBD-II scan. However, you will notice distinct environmental symptoms inside the cabin:
To effectively troubleshoot this error, it is helpful to understand the components involved and what the specific failure code implies. The Component
: Owners on platforms like the FullFatRR Forum note that a failed misting sensor can cause the air conditioning compressor to run continuously or not at all, showing a "0% humidity" live reading on diagnostic tools.