HomeHVAC > SensorsStandard Ignition AX647 Ambient Air Temperature Sensor
Part #: AX647

Standard Ignition AX647 Ambient Air Temperature Sensor

7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep, Grand Cherokee and Grand Cherokee L
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Ambient Air Temperature Sensor for Jeep Grand Cherokee

Standard Ignition AX647 is an ambient air temperature sensor built for direct replacement on select Jeep applications. It uses a push-in attachment method, a single plug-in connector, and a black housing with a polygon connector shape for a straightforward OE-style fit.

Fits 2021-2024 Jeep Grand Cherokee, N/A. Fits 2021-2023 Jeep Grand Cherokee L, N/A. This part cross-references Mopar (e.g., 68542632AA) for the same application.

Key Features

  • Ambient air temperature sensor for HVAC-related temperature input
  • Standard Ignition AX647 replacement part number
  • Push-in attachment method for select Jeep mounting locations
  • Female connector with male blade terminals
  • 1 connector, 2 terminals, and 1 port
  • Black finish with polygon connector shape
  • Direct-fit replacement for listed Jeep Grand Cherokee and Grand Cherokee L applications

Product Details

The Standard Ignition AX647 ambient air temperature sensor is used to provide outside air temperature data to the vehicle’s HVAC and display systems. For 2021-2024 Jeep Grand Cherokee and 2021-2023 Jeep Grand Cherokee L models, this sensor matches the listed push-in type configuration and connector layout for OE-style service replacement. If you are replacing a faulty Jeep Grand Cherokee ambient air temperature sensor or a Jeep Grand Cherokee L outside temperature sensor, AX647 offers a fitment-specific solution that aligns with the original application.

Common Symptoms It Can Address

  • Incorrect outside temperature readings on the dash or climate display
  • Temperature display that stays blank or fluctuates
  • HVAC control issues tied to inaccurate ambient air input
  • Sensor damage from road debris, moisture, or age-related wear
  • Diagnostic trouble codes related to ambient temperature sensing

Installation Notes

Verify the connector style, terminal layout, and push-in mounting point before installation. Compare the original sensor to Standard Ignition AX647 and confirm the vehicle is one of the listed Jeep Grand Cherokee or Grand Cherokee L model years. Clean the mounting area and inspect the harness connector for corrosion or bent terminals before connecting the new sensor.

Quality Assurance

Standard Ignition is a recognized aftermarket source for electrical and engine management components, and AX647 is built to match the listed OE-style application requirements for the vehicles shown above.

BrandStandard Ignition
Part NumberAX647
Terminal Quantity2
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
2024JeepGrand CherokeeN/APush-In Type
2023JeepGrand CherokeeN/APush-In Type
2023JeepGrand Cherokee LN/APush-In Type
2022JeepGrand CherokeeN/APush-In Type
2022JeepGrand Cherokee LN/APush-In Type
2021JeepGrand CherokeeN/APush-In Type
2021JeepGrand Cherokee LN/APush-In Type

* 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:

68542632AAATSA390TS7669WT5981

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