HomeHVAC > SensorsStandard Ignition AX642 Ambient Air Temperature Sensor
Part #: AX642

Standard Ignition AX642 Ambient Air Temperature Sensor

7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Bronco Sport and Escape
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Ambient Air Temperature Sensor for Ford Applications

Standard Ignition AX642 is an ambient air temperature sensor built for HVAC systems that rely on accurate outside-air readings. It fits 2021-2023 Ford Bronco Sport with manual AC and 2020-2023 Ford Escape on the blower case, making it a direct-match option for common Ford climate control service needs.

  • Ambient air temperature sensor for HVAC temperature input
  • 3-terminal design with blade terminals
  • 1 female connector with polygon plug-in shape
  • Push-in attachment method for blower-case mounting
  • Black finish
  • Fits 2021-2023 Ford Bronco Sport, w/ Manual AC
  • Fits 2020-2023 Ford Escape, On Blower Case

Detailed Product Overview

The Standard Ignition AX642 ambient air temperature sensor is used by the HVAC control system to read outside air temperature and help the vehicle manage climate functions. Its 3-terminal, plug-in electrical connection and push-in mounting style support a clean replacement on the blower case for Ford Escape models and manual-AC Bronco Sport applications. This part cross-references Ford OE-style numbers such as LX6Z19E906A and WT5983 for the same application.

Common Issues This Sensor Can Address

  • Incorrect outside temperature display
  • HVAC system reacting to inaccurate ambient air readings
  • Climate control performance problems tied to a faulty temperature input
  • Sensor-related warning or data inconsistencies in Ford Bronco Sport and Ford Escape HVAC systems

Installation Notes and Tips

Verify the connector style, terminal count, and mounting location before installation. This sensor uses a female connector, male blade terminals, and a push-in attachment method, so the replacement should match the original blower-case or manual-AC setup on the vehicle. Confirm fitment by year, make, model, and HVAC configuration before service.

Quality Assurance

Standard Ignition supplies replacement electrical and HVAC components for service applications, and AX642 is listed with OE-style interchange references for direct application matching. Use the confirmed fitment details for 2021-2023 Ford Bronco Sport and 2020-2023 Ford Escape when selecting this part.

BrandStandard Ignition
Part NumberAX642
Terminal Quantity3
Connector GenderFemale
Terminal GenderMale
Attachment MethodPush-in
Color/FinishBlack
Connector Quantity1
Connector ShapePolygon
Connector TypePlug in
ContentsSensor
Port Quantity1
Terminal TypeBlade

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2023FordBronco SportN/Aw/ Manual AC
2023FordEscapeN/AOn Blower Case
2022FordBronco SportN/Aw/ Manual AC
2022FordEscapeN/AOn Blower Case
2021FordBronco SportN/Aw/ Manual AC
2021FordEscapeN/AOn Blower Case
2020FordEscapeN/AOn Blower Case

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

ATSA392LX6Z19E906ATS7671WT5983

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.