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Standard Ignition AX309 Cabin Air Temperature Sensor
| Brand | Standard Ignition AX309 |
|---|---|
| Color | Black |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Connector Type | Plug In |
| Contents | Sensor |
| Mounting Bracket(s) Included | No |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Wiring Harness Included | No |
| Fits | Subaru · 20 vehicles |
Plug-in connector. Simple sensor connection with a rectangular female connector.
Blade terminals. Two male blade terminals provide a secure electrical interface.
Cabin air sensor. Measures interior air temperature for HVAC control.
Cross-references Standard Ignition AX309, 73730FG000 and ATSA291 for the same application. See all 5.
Cabin Air Temperature Sensor for Subaru HVAC
Standard Ignition AX309 is a cabin air temperature sensor used in Subaru climate control systems to monitor interior temperature and support accurate HVAC operation. It features a 2-terminal design with a rectangular plug-in connector, black finish, and female connector housing with male blade terminals.
Key Features
- Cabin air temperature sensor for HVAC temperature monitoring
- 2 terminals with blade-style male terminals
- 1 rectangular plug-in connector with female connector gender
- Black sensor body with no mounting bracket included
- Wiring harness not included
- Direct replacement part number AX309
Detailed Description
This Standard Ignition AX309 cabin air temperature sensor is built for Subaru climate control systems that rely on interior temperature feedback for proper HVAC regulation. It is a direct-fit sensor assembly with a single rectangular connector and a compact black housing, making it suitable for service replacement in 2008-2015 Subaru Forester, 2008-2014 Subaru Impreza, 2012-2014 Subaru WRX, and 2013-2014 Subaru WRX STI applications. This part cross-references 73730FG000 for the same application.
What It Helps Address
- Incorrect cabin temperature readings
- HVAC systems that do not regulate interior air properly
- Climate control performance issues tied to a faulty sensor signal
- Replacement needs after connector or sensor failure
- Service repair for Subaru Forester, Impreza, WRX, and WRX STI HVAC systems
Installation Notes and Tips
- Verify connector style, terminal count, and sensor location before installation.
- Inspect the vehicle harness and connector for corrosion, bent terminals, or heat damage.
- Confirm the HVAC system is diagnosed before replacing the sensor.
- Use the listed fitment to match the correct Subaru application: Fits 2008-2015 Subaru Forester, N/A; Fits 2008-2014 Subaru Impreza, N/A; Fits 2012-2014 Subaru WRX, N/A; Fits 2013-2014 Subaru WRX STI, N/A.
Quality Assurance
Standard Ignition is a recognized aftermarket brand for electrical and HVAC service parts. AX309 is built as a service replacement cabin air temperature sensor for the listed Subaru applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2015 | Subaru | Forester | N/A | — |
| 2014 | Subaru | Forester | N/A | — |
| 2014 | Subaru | Impreza | N/A | — |
| 2014 | Subaru | WRX | N/A | — |
| 2014 | Subaru | WRX STI | N/A | — |
| 2013 | Subaru | Forester | N/A | — |
| 2013 | Subaru | Impreza | N/A | — |
| 2013 | Subaru | WRX | N/A | — |
| 2013 | Subaru | WRX STI | N/A | — |
| 2012 | Subaru | Forester | N/A | — |
| 2012 | Subaru | Impreza | N/A | — |
| 2012 | Subaru | WRX | N/A | — |
| 2011 | Subaru | Forester | N/A | — |
| 2011 | Subaru | Impreza | N/A | — |
| 2010 | Subaru | Forester | N/A | — |
| 2010 | Subaru | Impreza | N/A | — |
| 2009 | Subaru | Forester | N/A | — |
| 2009 | Subaru | Impreza | N/A | — |
| 2008 | Subaru | Forester | N/A | — |
| 2008 | Subaru | Impreza | N/A | — |
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