Standard Ignition AX46 Ambient Air Temperature Sensor

Ambient Air Temperature Sensor for Nissan and INFINITI

Standard Ignition AX46 is an ambient air temperature sensor for vehicles that rely on accurate outside-air temperature input for HVAC and related climate control functions. It is built with a 2-terminal layout, a female connector, and a blade-style male terminal interface for direct plug-in service.

Compatible With select Nissan Frontier, Sentra, Maxima, Pathfinder, Murano, Rogue, Xterra, Altima, 370Z, X-Trail, and INFINITI G35, G37, EX35, FX35, FX50, Q45, QX4, G20, I30, I35, and M45 applications. Standard Ignition AX46 is a direct-fit ambient air temperature sensor for common Nissan and INFINITI HVAC repair needs.

Key Features

• Ambient air temperature sensor for HVAC temperature input
• Standard Ignition AX46 replacement part
• 2-terminal design with one round/square plug-in connector
• Female connector with male blade terminals
• Black finish
• Push-on attachment method
• Sensor only; wiring harness not included
• No mounting bracket included

Detailed Description

This ambient air temperature sensor monitors outside air temperature data used by the vehicle’s climate control system. Standard Ignition AX46 is specified with a single connector, blade terminals, and a plug-in connection style to match the original service layout on supported Nissan and INFINITI models. The part number AX46 is also referenced in aftermarket catalogs for the same application, including Dayco AX46 and Four Seasons 76001.

Fits 2009-2015 Nissan Frontier, N/A; 2002-2004 Nissan Frontier, N/A; 2009-2013 INFINITI G37, N/A; 2008-2012 INFINITI EX35, N/A; 2009-2012 INFINITI FX35, N/A; 2009-2012 INFINITI FX50, N/A; 2009-2012 Nissan Pathfinder, N/A; 2000-2012 Nissan Sentra, N/A; 2011 Nissan 370Z, N/A; 2008-2011 Nissan Rogue, N/A; 2009-2010 Nissan 370Z, N/A; 2004-2008 INFINITI G35, N/A; 2008 Nissan Frontier, N/A; 2006-2008 Nissan Maxima, N/A; 1994-2002 Nissan Maxima, N/A; 2005-2008 Nissan Pathfinder, N/A; 2003-2007 Nissan Murano, N/A; 1997-2006 INFINITI Q45, N/A; 2001-2006 Nissan Altima, N/A; 2005-2006 Nissan X-Trail, N/A; 2005 Nissan Maxima, N/A; 2002-2004 INFINITI I35, N/A; 2003-2004 INFINITI M45, N/A; 2002-2004 Nissan X-Trail, N/A; 2002-2004 Nissan Xterra, N/A; 2003 INFINITI G35, N/A; 1997-2003 INFINITI QX4, N/A; 1999-2002 INFINITI G20, N/A; 1996-2001 INFINITI I30, N/A.

This part cross-references Four Seasons 76001 and Walker Products 210-1037 for the same application.

What It Helps Address

• Incorrect outside temperature readings on the dash or climate display
• HVAC temperature control issues tied to ambient air input
• Fault codes related to the ambient temperature sensor circuit
• Intermittent or inaccurate climate system behavior in Nissan and INFINITI vehicles
• Replacement needs after sensor damage, corrosion, or connector wear

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. This AX46 sensor uses a plug-in connection with a female connector and male blade terminals, so the mating harness should match the original configuration. No wiring harness or mounting bracket is included, so reuse existing vehicle hardware where applicable.

For best results, inspect the connector for corrosion or loose terminals before installing the new sensor. Confirm the vehicle build date on 2011 Nissan 370Z and 2008 Nissan Frontier applications, since those listings include production-date notes.

Quality Assurance

Standard Ignition supplies this ambient air temperature sensor as an OE-style replacement part for supported Nissan and INFINITI applications. The AX46 is cataloged under multiple aftermarket interchange numbers, which helps confirm application matching during parts lookup.