Four Seasons 73679 HVAC Mode Door Actuator - Auxiliary

Overview of Four Seasons HVAC Mode Door Actuator 73679

The Four Seasons HVAC Mode Door Actuator 73679 is designed to restore proper airflow control in Lexus LS460 and LS600h models. This HVAC air door actuator features a durable arm-type door linkage and a reliable 5-terminal pin configuration for precise operation.

• Door linkage style: Arm for accurate HVAC door movement
• Mounting ear quantity: 4 for secure installation
• Terminal pin quantity: 5 ensuring stable electrical connections
• Compatible with Lexus LS460 and LS600h HVAC systems
• Part number: 73679 for easy identification and ordering

Detailed Product Description

The Four Seasons HVAC Mode Door Actuator 73679 is engineered to control the air distribution doors within the heating, ventilation, and air conditioning system of select Lexus vehicles. Featuring an arm-style door linkage, this actuator provides precise movement of the HVAC air doors, enabling accurate mode selection such as defrost, floor, or panel vents. The actuator mounts securely with four mounting ears, ensuring a stable fit within the HVAC housing. Its five terminal pins facilitate reliable electrical connections, supporting consistent actuator performance. This part is specifically designed for Lexus LS460 and LS600h models, making it a direct replacement for the original equipment actuator.

Common Applications and Issues Resolved

• Restores proper airflow direction in Lexus LS460 and LS600h HVAC systems
• Eliminates HVAC mode door sticking or failure to change modes
• Resolves inconsistent or no response from HVAC mode controls
• Fixes issues with air not flowing through selected vents
• Addresses actuator motor failure or electrical connection problems

Installation Notes and Tips

• Verify vehicle compatibility with Lexus LS460 or LS600h before installation
• Handle the actuator carefully to avoid damaging the arm linkage
• Ensure all four mounting ears are properly aligned and secured
• Check electrical connections on the 5 terminal pins for corrosion or damage
• Test HVAC mode operation after installation to confirm proper function

Quality Assurance and Warranty

Four Seasons HVAC components are manufactured to meet or exceed OEM specifications for fit and function. The HVAC Mode Door Actuator 73679 undergoes quality control testing to ensure reliable operation within the HVAC system. Please refer to Four Seasons warranty terms for coverage details.