Standard Ignition AX238 Ambient Air Temperature Sensor

Ambient Air Temperature Sensor for Lexus RX400h

Standard Ignition AX238 is an ambient air temperature sensor for the HVAC system on select Lexus RX400h models. It provides the temperature input used by the climate control system to help manage cabin comfort and outside-air temperature display.

Key Features

• Ambient air temperature sensor for HVAC temperature monitoring
• Black housing with a rectangular plug-in connector
• Female connector with male blade terminals
• Push-on attachment method
• Sensor only; wiring harness not included
• No mounting bracket included
• Standard Ignition AX238 replacement part

Detailed Description

Standard Ignition AX238 is built for vehicles that rely on an exterior temperature signal to support HVAC operation and dashboard temperature reporting. It uses a 4-terminal design with one rectangular connector, a female connector body, and male blade terminals for a direct electrical interface. This ambient air temperature sensor is listed for 2006-2008 Lexus RX400h applications, making it a direct-fit option for owners searching for a Lexus RX400h ambient air temperature sensor, Standard Ignition AX238, or an outside air temperature sensor for 2006-2008 Lexus RX400h.

This part cross-references Toyota 8862548070 and TS57365 for the same application.

What It Helps Address

• Incorrect outside air temperature readings on the display
• HVAC system temperature input faults
• Climate control behavior affected by a failed ambient sensor
• Loss of accurate ambient temperature feedback in the Lexus RX400h
• Electrical connection issues at the sensor interface

Installation Notes and Tips

Fits 2006-2008 Lexus RX400h, N/A. Confirm the connector shape, terminal count, and push-on mounting style before installation. Inspect the vehicle harness and connector for corrosion, bent terminals, or damaged locking features before connecting Standard Ignition AX238. Transfer any existing mounting location components as needed, since no mounting bracket is included.

Quality Assurance

Standard Ignition supplies replacement electrical and HVAC components with application-specific fitment and OE-style connector design. AX238 is listed with direct interchange references to support accurate part matching for Lexus RX400h service work.