Standard Ignition AX531 Ambient Air Temperature Sensor

Brand Standard Ignition AX531
Terminal Quantity 2
Connector Gender Female
Terminal Gender Male
Attachment Method Push on
Connector Quantity 1
Connector Shape Oval
Connector Type Plug; socket
Contents Sensor
Terminal Type Blade
Voltage 12
Fits Volkswagen · 6 vehicles

Ambient air temperature sensor. Monitors outside air temperature for HVAC system control.

Push-on attachment. Simple connection with a single oval plug-and-socket connector.

Blade terminals. Two-terminal design for a secure electrical connection.

Cross-references Standard Ignition AX531, 3CN820535 and ATSA375 for the same application. See all 5.

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Ambient Air Temperature Sensor for Volkswagen

Standard Ignition AX531 is an ambient air temperature sensor for select Volkswagen applications. It uses a 2-terminal, 12-volt design with a female connector, male blade terminals, and an oval plug/socket connection for direct replacement service.

Fits 2022-2023 Volkswagen Atlas Cross Sport, N/A. Fits 2020 Volkswagen Atlas Cross Sport, N/A. Fits 2020 Volkswagen Atlas, N/A. Fits 2018-2019 Volkswagen Atlas, N/A.

Key Features

  • Ambient air temperature sensor for HVAC-related temperature input
  • Standard Ignition AX531 replacement part number
  • 2 terminals with male blade terminals
  • Female connector with oval connector shape
  • Push-on attachment method
  • 12-volt electrical specification
  • Includes sensor only

Detailed Description

Standard Ignition AX531 is built for vehicles that rely on accurate ambient temperature input for climate control and related system logic. The sensor’s oval connector, plug/socket interface, and push-on attachment method support a straightforward replacement where the original connector style matches. This part cross-references 3CN820535 for the same application.

For Volkswagen Atlas and Volkswagen Atlas Cross Sport models, AX531 provides a direct-fit ambient air temperature sensor option for the listed years. Use the part number AX531 when verifying the correct replacement against the original sensor and connector configuration.

What It Helps Address

  • Incorrect outside temperature readings on the dash or display
  • HVAC behavior affected by faulty ambient temperature input
  • Temperature-related warning or sensor fault conditions
  • Replacement needs after connector or sensor wear
  • Restoring proper ambient air temperature signal to the vehicle system

Installation Notes and Tips

Confirm the connector shape, terminal count, and attachment style before installation. Match the original sensor location and wiring configuration on the vehicle, and verify fitment for your specific Volkswagen Atlas or Volkswagen Atlas Cross Sport year before ordering. AX531 should be compared against the removed part to confirm connector and terminal compatibility.

Quality Assurance

Standard Ignition supplies replacement electrical and sensor components for automotive service applications. AX531 is listed with defined connector, terminal, and voltage specifications to support accurate part matching during repair.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2023VolkswagenAtlas Cross SportN/A—
2022VolkswagenAtlas Cross SportN/A—
2020VolkswagenAtlasN/A—
2020VolkswagenAtlas Cross SportN/A—
2019VolkswagenAtlasN/ANeutral Safety Switch with Harness - Radio Capacitor
2018VolkswagenAtlasN/ANeutral Safety Switch with Harness - Radio Capacitor
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — AX5313CN820535ATSA375TS57658WT5967