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Standard Ignition AX638 A/C Refrigerant Temperature Sensor
| Brand | Standard Ignition AX638 |
|---|---|
| Attachment Method | Push-in |
| Color/Finish | Black |
| Connector Gender | Male |
| Connector Quantity | 1 |
| Connector Shape | Polygon |
| Connector Type | Plug |
| Contents | Sensor |
| Terminal Gender | Male |
| Terminal Quantity | 2 |
| Terminal Type | Blade |
| Fits | Chevrolet · 7 vehicles |
Push-in fit. Installs without extra mounting hardware.
Plug connector. Single connector with blade terminals for a secure electrical connection.
A/C refrigerant sensor. Monitors refrigerant temperature in the HVAC system.
Cross-references 95369809, ATSA391 and TS7670 for the same application. See all 4.
Standard Ignition AX638 A/C Refrigerant Temperature Sensor
Standard Ignition AX638 is an A/C refrigerant temperature sensor built for HVAC temperature monitoring in the air conditioning system. It uses a push-in attachment method, a black finish, and a single male plug connector with a polygon shape and two male blade terminals for direct sensor connection.
Compatible With 2016-2022 Chevrolet Spark, Low Temp. This Standard Ignition AX638 refrigerant temperature sensor is a direct-fit service part for Chevrolet Spark low-temperature HVAC applications.
Key Features
- Push-in attachment method for straightforward sensor mounting
- Black housing finish
- Single male plug connector with polygon shape
- Two male blade terminals for electrical connection
- Sensor-only contents for HVAC refrigerant temperature monitoring
- Fits 2016-2022 Chevrolet Spark, Low Temp
Detailed Description
The AX638 A/C refrigerant temperature sensor monitors refrigerant temperature within the HVAC system so the vehicle control strategy can respond to changing operating conditions. Standard Ignition AX638 is specified with a push-in mount, one male connector, and two male blade terminals, making it a practical replacement for service work on the Chevrolet Spark. If you are searching for an A/C refrigerant temperature sensor for 2016-2022 Chevrolet Spark low temp applications, AX638 is the matching part number to reference.
This part cross-references Monroe Shocks & Struts (e.g., 95369809, ATSA391) for the same application.
What It Helps Address
- Incorrect refrigerant temperature signal to the HVAC control system
- A/C cycling concerns tied to sensor input faults
- Temperature-related compressor control issues
- HVAC performance problems caused by a failed refrigerant temperature sensor
- Diagnostic trouble codes related to refrigerant temperature sensing
Installation Notes and Tips
Verify connector style, terminal count, and push-in mounting before installation. Confirm the vehicle is a 2016-2022 Chevrolet Spark with the Low Temp application, and compare the original sensor location and connector shape to AX638 before replacement. Use proper HVAC service procedures when diagnosing refrigerant temperature sensor faults.
Quality Assurance
Standard Ignition is a recognized aftermarket source for electrical and HVAC service parts. AX638 is built to match the listed application details for fitment-focused replacement on the Chevrolet Spark.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2022 | Chevrolet | Spark | 1.4L | L4 | N/A | Low Temp |
| 2021 | Chevrolet | Spark | 1.4L | L4 | N/A | Low Temp |
| 2020 | Chevrolet | Spark | 1.4L | L4 | N/A | Low Temp |
| 2019 | Chevrolet | Spark | 1.4L | L4 | N/A | Low Temp |
| 2018 | Chevrolet | Spark | 1.4L | L4 | N/A | Low Temp |
| 2017 | Chevrolet | Spark | 1.4L | L4 | N/A | Low Temp |
| 2016 | Chevrolet | Spark | 1.4L | L4 | N/A | Low Temp |
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