Standard Ignition AX384 HVAC Heater Core Temperature Sensor

HVAC Heater Core Temperature Sensor for Toyota and Lexus

Standard Ignition AX384 is an HVAC heater core temperature sensor built with a square female plug-in connector and male pin terminals for a direct electrical connection. It is listed for select Toyota Avalon, Toyota Camry, Lexus RX350, and Lexus RX450h applications, making it a focused replacement for heater core temperature monitoring in covered vehicles.

Key Features

• Standard Ignition AX384 HVAC heater core temperature sensor
• Female connector with a square plug-in design
• 1 connector and 2 male pin terminals
• Sensor-only contents for HVAC temperature sensing service
• Fits 2005-2018 Toyota Avalon
• Fits 2007-2009 Toyota Camry
• Fits 2010-2015 Lexus RX350
• Fits 2010-2015 Lexus RX450h

Detailed Description

The Standard Ignition AX384 is an HVAC heater core temperature sensor used to monitor heater core temperature in supported Toyota and Lexus vehicles. Its square, plug-in female connector and 2-pin male terminal layout support a direct electrical interface, helping maintain accurate HVAC temperature feedback in systems that rely on heater core sensing. This part number, AX384, is listed for Toyota Avalon, Toyota Camry, Lexus RX350, and Lexus RX450h model coverage across the stated years.

This part cross-references 5S16203 and 8862006020 for the same application.

What It Helps Address

• Inaccurate heater core temperature readings
• HVAC temperature control faults
• Intermittent sensor signal issues
• Heating performance concerns tied to sensor feedback
• Diagnostic trouble codes related to HVAC temperature sensing

Installation Notes and Tips

Verify connector shape, terminal style, and vehicle fitment before installation. Match the replacement sensor to the original AX384 configuration and confirm the application by year, make, and model. For best results, inspect the connector and wiring for corrosion, bent pins, or heat damage before connecting the new sensor.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. AX384 is built to match the listed connector and terminal configuration for the specified Toyota and Lexus HVAC applications.