This sensor—typically located near the rear-view mirror—monitors the humidity levels and temperature of the windshield's interior surface. When it detects conditions likely to cause fogging, the vehicle’s HVAC system automatically adjusts to prevent it, often without the driver needing to press any buttons. Key Benefits
The sensor is a small module typically located behind the plastic cover of the rearview mirror, pressed against the windshield. Its job is to detect humidity and temperature to help the Climate Control Module (CCM) automatically activate the defogger/demister. land rover jaguar b13c2-49
Moister ingress (e.g., from a leaking windshield seal or humid climate) corrodes pins C1 and C2 of the ACM’s 54-pin connector, disrupting fan power and tachometer feedback. disrupting fan power and tachometer feedback.