Standard Ignition AX491 HVAC Heater Core Temperature Sensor

Overview of Standard Ignition HVAC Heater Core Temperature Sensor AX491

The Standard Ignition HVAC Heater Core Temperature Sensor AX491 is designed to provide accurate temperature readings for the heating and cooling system in select Audi models. This sensor ensures optimal climate control performance by monitoring the heater core temperature effectively.

• Connector Gender: Female
• Connector Quantity: 1
• Connector Shape: Rectangular
• Terminal Gender: Male
• Terminal Quantity: 2
• Terminal Type: Blade

Detailed Product Description

The AX491 HVAC Heater Core Temperature Sensor from Standard Ignition features a female rectangular connector with a single connection point, designed for secure and reliable electrical interfacing. It includes two male blade terminals that facilitate efficient signal transmission to the vehicle’s HVAC control module. This sensor is engineered to meet the specifications required for Audi vehicles, including the A6, A6 Quattro, A7 Quattro, A8 Quattro, RS7, S6, S7, and S8 models. The precise temperature sensing helps maintain the desired cabin temperature by providing real-time data to the HVAC system.

Common Applications and Issues Addressed

• Inaccurate cabin temperature readings
• HVAC system failing to regulate heater core temperature
• Intermittent or no heat output from the heater core
• Fault codes related to heater core temperature sensor malfunction
• HVAC blower running continuously or erratically

Installation Notes and Tips

When installing the Standard Ignition AX491 sensor, ensure the female rectangular connector is securely attached to the vehicle’s wiring harness. Verify that the two male blade terminals are properly seated to avoid signal loss. It is recommended to disconnect the battery before installation to prevent electrical shorts. Proper alignment and secure mounting of the sensor will help maintain accurate temperature readings and system reliability.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring dependable performance and durability. The AX491 HVAC Heater Core Temperature Sensor undergoes rigorous quality control testing. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.