Code U0160 on the 2023 Lincoln Nautilus indicates lost communication with the rear air conditioning control module. This module manages the rear climate zone, providing independent temperature control for rear passengers.
Rear Climate Zone System
The Nautilus features multiple climate zones with independent rear controls. The rear HVAC module manages the auxiliary evaporator, blower motor, and distribution for rear passengers. It communicates with the main HVAC controller to coordinate overall cabin comfort. Communication loss isolates the rear zone.
Rear Passenger Comfort Loss
With U0160 present, rear climate controls may not respond. The rear air vents may provide no air or only uncontrolled air flow. Rear passengers lose independent temperature control. The main system may show errors related to rear zone communication. Front climate control typically continues to function.
Diagnostic Focus
The rear HVAC module is typically located in the rear of the vehicle, often under the rear cargo area or behind rear trim panels. Check the module connector for damage. The rear location can expose it to water damage from lift gate leaks or cargo area spills. Verify power, ground, and CAN communication.
Repair Path
Inspect for water damage or connector issues. If the module has failed, replacement requires Ford IDS for programming. The new module must be configured for the vehicle's climate zone setup and integrated with the main HVAC controller.