Standard Ignition AX404 Cabin Air Temperature Sensor

Cabin Air Temperature Sensor for Volvo HVAC Systems

Standard Ignition AX404 is a cabin air temperature sensor used in Volvo climate control systems to monitor interior air temperature and support accurate HVAC operation. It is a direct-fit style replacement for select Volvo C30, C70, S40, V50, S70, and V70 applications, including models from 1998 through 2013.

Key Features

• Cabin air temperature sensor for HVAC temperature feedback
• Black finish with a rectangular female connector
• Plug-in connector design with 4 male pins
• Sensor only; wiring harness not included
• No mounting bracket included
• Standard Ignition AX404 replacement part

Detailed Description

Standard Ignition AX404 is built for vehicles that rely on an in-cabin temperature signal to help the climate control module regulate heating and cooling output. This sensor uses a rectangular plug-in connector with a female connector body and male pin terminals, making it a practical replacement when the original cabin temperature sensor is no longer reading correctly. It is a strong match for Volvo HVAC repair work on the C30, C70, S40, V50, S70, and V70, and the AX404 part number is commonly referenced in replacement searches for these applications.

This part cross-references Monroe Shocks & Struts (e.g., 35248410, ATSA269) for the same application.

What It Helps Fix

• Incorrect cabin temperature readings
• HVAC systems that blow air too warm or too cold
• Climate control response that does not match the selected setting
• Faulty interior temperature feedback to the HVAC module
• Replacement needs after sensor connector or terminal wear

Installation Notes and Tips

Verify connector shape, terminal style, and vehicle fitment before installation. Standard Ignition AX404 uses a plug-in connection and does not include a wiring harness or mounting bracket, so reuse the existing vehicle hardware and connector path where applicable. For Volvo C70, S40, and V50 HVAC service, compare the original sensor location and connector layout to confirm a proper match before final assembly.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. AX404 is built to meet the needs of replacement HVAC sensor service on select Volvo models, including 1998-2004 Volvo C70, 2004-2012 Volvo S40, and 2005-2011 Volvo V50 applications.